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Computer Engineering Department Research Profile Dr. Sadiq M. Sait Computer Engineering Department King Fahd University of Petroleum & Minerals
Computer Engineering Faculty n 20 Professorial Rank faculty members n 6 lecturers • 2 Full Professor • 2 Associate Professor • 16 Assistant Professor
COE Research Areas n Data Communications & Computer Networks. n Computer Applications: Robotics, Interfacing, Data acquisition, Machine learning, Data Mining. n Digital Design Automation & VLSI System Design & Test. n Computer Architecture & Parallel Processing. n Computer Arithmetic & Cryptography.
COE Recent Research Projects: Data Communications & Computer Networks n n n n Wireless Multi-hop Voice over IP over Wi-Fi using Client-Server UDP. Mobile Patient using sensor network. Wireless Local Area Networks Integration for Mobile Networks Operators. E-Tourism Promoter – An Internet Assisted Location Tracker and Map Reader for Tourists. A Framework for Integration of Web-based Network Management and Management by Delegation. Radio Resource Management and Qo. S Control for Wireless Integrated Services Networks. Adaptive TCP Mechanisms for Wireless Networks. Engineering Modern Iterative Heuristics to Solve Hard Computer Network Design Problems.
Wireless Multi-hop Voice over IP Objectives § Setting up and implementing a wireless mobile ad hoc infrastructureless environment. § Imitating the cellular network topology (Virual Base Stations) § Engergy Aware protocols § Maximizing the number of hops within the 200 ms constraint § IP telephony (protocols, basic and advanced services) § Reconfiguring IEEE 802. 11 wireless cards § Impelementing H 323 protocol in MANET § Sending data and voice over UDP/IP H. 323 Service (Setting up Value-added Services)
Wireless Multi-hop Voice over IP Source Input Compression voice Energy Aware Gateways ≤ 200 ms . . . Intermediate nodes. . . Output Decompression voice Dest
Mobile Patient n Objectives • Introduce mobile health as the • • • future of medicine. Cost effective solution. Facilitate the use of both medical sensors and wireless mobile network in health applications. Building a sensor network to monitor patients effectively: • Providing doctors with easy access to the database • Providing immediate help to patients
Mobile Patient MS 5536 Compatible with most existing microcontrollers 1. Uses 3 -wire serial interface (SPI) 2. Low voltage/low power consumption 3. SPI programmable 1. 2. 3. 4. 5. 6. Full TCP/IP v 4/v 6 support 10/100 Base-T Ethernet MAC Built in OS Three serial ports Java programmable Built in web-server and FTP
Wireless Local Area Networks Integration for Mobile Networks Operators n Motivation n Objective • Address capacity requirements in “hotspot” areas. • Provide seamless service continuity. • Integrate WLANs with 3 G wireless data networks leading to hybrid mobile data networks. • Describe possible architectures and integration solutions relevant to existing and future Saudi Telecom Company (STC) wireless networks. • Present a typical deployment scenario of a WLAN into an STC wireless network • Specify required network elements • Provide corresponding commercially available products
WLAN Integration: Methodology & Planned Deliverables n Survey and classify existing solutions n Identify most suitable solution or introduce new solution n Tailor the solution to suit the particular local environment and network Analyze & Evaluate Solutions Pick Best Solution (novel/existing) Wireless ISP server WLAN IWU Survey Solutions Apply to Case Study CC&BS AAA HLR Node B Phases of Project 3 G GGSN Node B RNC Case study: Provide a typical deployment scenario in King Fahd Airport in Dammam • Specify required network elements and the Example of WLAN Integration corresponding commercial available product Node B 3 G SGSN UMTS IP backbone •
E-Tourism Promoter – An Internet Assisted Location Tracker and Map Reader for Tourists n Motivation • Vehicle tracking and path identification • E-directory (databased) for public service areas and centers • n of interest (hotels, hospitals, police stations, etc. ) Encouragement and promotion of tourism Functionality • Advanced Arabic/English-based graphical user interface • Real-time display of information and manipulation of map • Communication with infrastructure networks (PSTN or • GSM/GPRS) using email/SMS/voice Possible extensions: service/product advertisements, shortest path instructions, etc.
E-Tourism: Specification, Methodology and Planned Product • • Integrated database system to position on the map and query service centers and areas of interest Minimum requirement is to identify these facilities of interest and display their attributes (phone #, email, website, etc. ) Communication using PSTN, mobile GSM network, or GPRS/internet Additional features may include identification of shortest path Project Architecture • Development: JAVA and. NET framework • • • GPS communication System Map application Bluetooth serial support SSP GSM/GPRS modem support An integrated software/hardware system that may be running on a Pocket. PC, laptop, or a PC for demonstration purposes
A Framework for Integration of Web-based Network Management and Management by Delegation Network Management is mainly based on a centralized architecture. This causes the manager and its segment to become a bottleneck. The most widely used protocol is SNMP, which lacks flexibility and efficiency. n XML provides a more flexible and standard representation and exchange of data. Load balancing techniques provide a more efficient data processing – How can these techniques improve existing network management systems? n Objective: Develop an XML-based network management system using JPVM to dynamically distribute the management load across multiple XML/SNMP gateways. n
Approach: Integration of XML and Different Load Balancing Techniques - A master gateway distributes the management load across multiple XML/SNMP gateways - A gateway translates XML to SNMP and SNMP to XML. - XML-based network management approaches using Java Parallel Virtual Machine (JPVM) : - Dynamic load balancing - Adaptive load balancing - Static weighted load balancing - Equal work non-weighted load balancing Achievements: n Standard representation and exchange of data n Efficient distribution of tasks: adaptive and dynamic n Delegation of tasks to other gateways n Increased processing efficiency of management data n Decreased communication time between the manager and the agents
Proposed Work related to Intel’s R&D n The project is being extended through the investigation of the following issues: • New load balancing approaches that adapt dynamically in n • • function of the network load Reliable and fault-tolerant network management Hierarchical network management Adaptive Distributed and Reliable XML-based Network Management can prove useful in areas such as: • Automated and remote provisioning techniques • Remote and reliable operations such as secure reset and • power cycling Remote and distributed network management applications such as monitoring, control, topology discovery, and performance evaluation
Computer Applications: Embedded Systems, Machine Learning, Robotics
COE Recent Research Projects: Computer Applications n Design of a wireless safety system for smart kitchen. n Predicting log properties from seismic data using abductive networks. n Design of an Intelligent Telerobotic System. n Designing and building a mobile emergency warning system for patients under health care. n Context aware energy management system.
Designing and Implementing a Safety & Health Check System for Home Environment n Motivation • Preventing children accidents. • Keep a record of children encounters: access to hazardous appliances. • Provide immediate help for children when needed. • Utilize the advances in Web technology to keep an eye on children. • Enhance the level of safety at home. n Objectives • Introduce a safety system for the kitchen environment. • Cost effective solution. • To inform child’s parents of his status in case of emergency. • Building a sensor’s network to gather real time Information of events in the kitchen: • Detection of hazards and generating Alarms • Identification of children to disable access to hazardous appliances and tools
Proposed Solution Contributions: • Remote live alert of hazardous gas. • Low cost smart kitchen for safety of children. • Controlled access to hazardous kitchen tools. • Web enabled solution for monitoring of children in real time. • Alert when gas barrel is empty.
Predicting Log Properties from Seismic Data using Abductive Networks n Modeling well log parameters in terms of seismic data gives a more complete picture of rock properties over a reservoir. n A large number of seismic features exist- Which ones are relevant? n Objective: Use abductive networks to select an optimum subset of seismic attributes and model rock porosity.
Approach: Self-Organizing Abductive (Polynomial) Networks - Easier to train: Self organization - Algorithm selects: Significant inputs, Function elements, Connectivity, Coefficients - Automatic stopping criteria with complexity control - More transparent models. Analytical inputoutput relationships Achievements: y = w 0 + w 1 x 1 + w 2 x 2 + w 3 x 12 + w 4 x 22 + w 5 x 1 x 2 + w 6 x 13 + w 7 x 23 n Several porosity models at various degrees of complexity. n Accuracy comparable with previous neural network models obtained using much larger datasets. n Significant reduction in the number of input features needed.
Proposed Work related to Intel’s R&D n COE has a wide experience in abductive network modeling for science, engineering, medical informatics, and the environment. A project is being initiated for FPGA realization of abductive networks. n VLSI implementations of abductive models should prove useful in areas such as: n • Intelligent processing in communication networks • Intelligent health care monitoring and control • Environmental and weather monitoring and forecasting • Inferential monitoring and control of industrial processes • Predictive maintenance for machinery
TELEROBOTICS FOR OIL EXPLORATION AND DRILLING PROPOSED RESEARCH n Supervisory and automatic inspection in oil exploration and drilling (OED). n Develop standards in computer and software architectures for telerobotics. n Handles real-world and communication uncertainties and respond to expected and unexpected events. n Develop a universal master workstation and application-oriented slave robots. n Develop computer-aided telerobotic tools to promote man-machine interfacing and quality of telerobotic work. n Use of inexpensive, light, easily maintainable, telerobotic systems. Communication uncertainties
TELEROBOTICS FOR OIL EXPLORATION AND DRILLING Standards hardware and software architectures n n New Processor architecture (effective multithreading) • Multithreading and multi-streaming • Interfacing: sensing (mobility, video, force, etc) and 3 D visualization • Communication: real-time wireless networking Software architecture (uncertainties in task and communication) • Reactivity: supervisory and linguistic control, supervised-autonomy, shared-control, cooperative and collaborative control • Advanced real-time motion coordination and mobility • Task planning: graphical modeling/simulation using VR and augmented reality • Reliability and exception handling: agentbased reactive behavior using multi-sensor fusion Graphic modelling
TELEROBOTICS FOR OIL EXPLORATION AND DRILLING Applications n n n Scaled telerobotics: a manned station teleoperating (wired or wirelss) a scaled slave robot for remote operations and routine maintenance in inaccessible areas like tubes, pipes, equipment, well, drilling hole, etc. Hazardous: a manned station teleoperating a stationary or mobile robot (vehicle) for remote operations and inspection in harsh environments like high temperature, high pressure, poisonous (gaz or other), high pollution, underground, underwater, etc. Tight safety: a manned station teleoperating a slave robot carrying out security patrol tasks, disposal of dangerous material, rescue, fire fighting and clearance, oil platform inspection and repair, operating in emergency cases as surveillance and reconnaissance, etc. Underwater, excavation, and drilling
Warning and Monitoring Medical System: Designing and implementation n Motivation n Objectives • The remote system ensures high quality service to the patients. • Keep a record of your patient encounters. • Improve information efficiency and manageability of knowledge sources. • Overcome nurse negligence. • Provide better health care and medication support. • Introduce mobile health as the future of medicine. • Cost effective solution. • To facilitate improved productivity using mobile health solutions. • Building a sensor network to monitor patients effectively: • Providing doctors with easy access to the database • Providing immediate help to patients
Proposed Solution Blood Pressure Sensor Circuit
Digital Design Automation & VLSI System Design & Test
COE Recent Research Projects: Design Automation & VLSI System Design & Test. n Iterative Heuristics for Timing & Low Power VLSI Standard Cell Placement. n Parallelization of Iterative Heuristics for Low Power VLSI Standard Cell Placement. n Efficient Test Relaxation Based Static Test Compaction Techniques for Combinational and Sequential Circuits. n Efficient Test Data Compression Techniques for Testing Systems-on-Chip. n Segmented Addressable Scan Architecture for Effective Test Data Compression.
COE Recent Research Projects: Design Automation & VLSI System Design & Test. n Development of Digital Circuit Techniques for Clock Recovery and Data Re-Timing for High Speed NRZ Source-Synchronous Serial Data Communications. n Fast context switching configurable architectures supporting dynamic reconfiguration for computation intensive applications. n Development of Integrated Micro-electronic Heavy Metal Sensors for Environmental Applications. n Multi-objective Finite State Machine Encoding using Non-Deterministic Evolutionary Algorithms targeting area, low power and testability. n Design and Implementation of Scalable Interconnect Efficient LDPC Error Correcting Codes.
Parallelizing Non-Deterministic Iterative Heuristics to Solve VLSI CAD Problems n CAD Problems such as Floorplanning, Placement, Routing, Scheduling, etc. , require an enormous amount of computation time. n Iterative Heuristics such as Genetic Algorithms, Tabu Search, Simulated Evolution, and others have been found effective in solving several NP-hard optimization problems. n Objective: To use a cluster of PCs to solve multiobjective VLSI CAD problems in order to improve quality and reduce run-time.
Approach: To employ a Cluster of PCs to Distribute Computationally Intensive Tasks n n n Clusters of low end PCs are easy to build. Tools such as MPI and PVM are available for message passing. Tools such as gprof, Intel’s VTUNE Performance Analyzer, etc. , are used for generating profiles for serial codes and determining the part of the code that has the bottlenecks. Iterative algorithms are non-deterministic, and dividing work load, i. e. partitioning the search space, is a challenge. The parallelizing model (i. e. , Partitioning, Communication, Agglomeration and Mapping) is very well-defined for numerical problems, which are mostly deterministic. This is not the case for Iterative heuristics, which are non-deterministic.
Tools used in our Current Cluster n MPICH Library provides a flexible implementation of MPI for easier message-passing interface development on multiple network architectures. n Intel® Trace Collector 5. 0 applies event-based tracing in cluster applications with a low-overhead library. Offers performance data, recording of statistics, multi-threaded traces, and automatic instrumentation of binaries on IA-32. n Intel® Trace Analyzer 4. 0 provides visual analysis of application activities gathered by the Intel Trace Collector. n Total. View (MPICH) is also used for observing communication between processors. n Also used in Condor (for scheduling jobs on the cluster).
Relationship to Intel’s R&D n COE Department has faculty experienced in VLSI Design. n Two books in the area of iterative algorithms and VLSI Design have been authored by the department faculty. n The Technology Center being proposed in RI will have the state-of-art tools and equipment. n Faculty and students currently interested in HPC and parallelization of heuristics can work together to address industrial and real-world problems.
Efficient Test Compaction & Compression Techniques for Comb. & Seq. Circuits n SOC Testing Challenges • Reduce amount of test data. • Reduce time a defective chip spends on a tester. n Test Compaction & Compression • Reduce the size of a test set as much as possible. n Test vector reordering for combinational circuits. • Steepen the curve of fault coverage vs. number of test vectors.
Efficient Test Compaction & Compression Techniques for Comb. & Seq. Circuits n Efficient Test Relaxation for Combinational & Sequential circuits • Enabling technology for test • Compaction & Compression Test power reduction 11001 011000110 00011 101111100 00001 n Test Vector Decomposition 1 X 0 XX 100 X X 11 XX 0 X 10 0 XXXX 0 XX 1 XXXX 111 XX X 0 X 01 XXXX Developed efficient test compaction techniques based on test relaxation. n Test Relax. • Maximizes test compaction by • vector clustering techniques Maximizes test width-based compression techniques. 1 XXX 1 X 0 XX 11001 XXX 00 XXX 1 X 1 XXX 1 X 0 X
Segmented Addressable Scan: Scan Test Challenges n Test data volume challenge n Tester pin count challenge n Test time challenge n Test power challenge • Limited IOs & unlimited increase in transistors • Exponential increase in test data volume • Tester cost is almost linear in number of pins • Critical path • Hard to parallelize test loading massively • High activity leading to high power consumption.
Segmented Addressable Scan ØAggressive parallelization of scan chains ØReconfigurable partial compatibilities Pin count: 2 log 2 S +1 ØSpecial SAS decoder Data volume: 10 x ~ 20 x compression with small designs for both SAF and TDF üBigger designs have higher compression pins, ücan be reduced to ONLY 2 Overhead: üfew gates per scan chain Power consumption Test time: aggressive parallelization test time reduction
Test Data Volume & Test Time (Delay test) Total Data Volume 98 Mb Compression Ratio SAS Data Volume 32 Segments 7. 7 Mb 12 x 64 Segments 5. 3 Mb 17 x 128 Segments 4. 5 Mb 22 x 256 Segments 3. 6 Mb 27 x $Ms of annual test cost
Computer Architecture & Parallel Processing
COE Recent Research Projects: Computer Architecture & Parallel Processing n Load Balancing for Parallel Visualization of Blood Head Vessel Angiography on Cluster of PCs. n Shared Channels in Interconnection Networks. n Study of modified Multistage Interconnection Networks for Networks-on-Chips. n Design of a Simulator for a Class of Dynamic Execution Processors. n Beyond Instruction-Level Parallelism in Processor Architecture. n Design and Performance Evaluation of a Distributed Crossbar Scheduler. n Software Pipelining for Reconfigurable Instruction Set Processors.
Scalable Cache Memory Design for Large-Scale SMT Architectures n n Scalable front end PC PC • Multiple i-caches PC I-cache • Scalable i-cache Decode & capacity Rename • Scalable i-cache Int FP FP bandwidth Q Q Q Q One-level scalable and Registers shareable data cache &Bypass • Split into multiple LS ALU FPU LS ALU FPU LS ALU FPU block-interleaved banks Interconnect • Each bank is single. Dcache ported and shared . . . Dcache Bank Bank by all threads • Parallel access to different banks Memory Module through interconnect • Complexity grows with number of ports n Modular and Scalable SMT (not a pure SMT) and banks n Most hardware resources have limited thread sharing • I-caches, Decode logic, Queues, Registers, FUs
Simulation and Performance n n n SPEC 2000 Simulation • 8 simultaneous threads Simulation Parameters Issue/retirement width: 32 instructions / cycle Scheduling Queue: 128 entries Load-Store Queue: 64 entries Other Resources: • • • 24 simple ALUs 8 fully pipelined FPUs 4 cycle-latency for FP add and FP multiply Conclusions • • Large-scale SMT can tolerate latencies Parallel D-cache banks improve capacity and bandwidth, but increase hit latency Instructions Per Cycle (IPC) n 24 23. 07 22 20. 46 20. 19 20 19. 71 19. 10 18. 39 Latency 5 Latency 7 Latency 9 18 16 14 12 10 8 6 4 2 0 Ideal Mem Ideal Cache Latency 3 188. ammp 177. mesa 176. gcc 197. parser n 183. equake 255. vortex 175. vpr 181. mcf Related Publications • • Mudawar M. and Wani J. , One-Level Cache Memory Design for Scalable SMT Architectures, in Proceedings of the 17 th ISCA International Conference on Parallel and Distributed Computing Systems, September 15 -17 2004, San Francisco, California. Mudawar M. , Scalable Cache Memory Design for Large-Scale SMT Architectures, ACM International Conference Proceedings Series, Vol 68; also in Proceedings of the 3 rd Workshop on Memory Performance Issues: in conjunction with 31 st IEEE/ACM International Symposium on Computer Architecture, June 20 -23 2004, Munich, Germany.
Proposed work related to Intel’s R & D n Wide experience in processor simulation and evaluation of micro-architectures. n A project is being initiated for the automatic generation of simulators from the formal description of the instruction set architecture. n We are currently investigating • • • n A formal language for the concise description of an instruction set architecture. Automatic generation of a simulator from a formal description. Generation of an assembler from a formal description. We are considering using this tool in • Proposing new instruction set architectures for research • and development. Education in related Computer Architecture courses.
Study of Modified Multistage Interconnection Networks for Networks-On-Chips n n Past Networks-On-Chips (No. Cs) Solutions: • Reproduce what has been learned in the area of inter-chip networks, • Focus on the router architecture alone to achieve certain goals in latency • Asynchronous design of No. Cs, mainly GALS • Circuit switching techniques introduced to provide a certain guarantee for the latency. • Did not fully take advantage of the fact that the network is on-chip where the main gain is no-pin limitation. • Router architectures directly derived from inter-chip architectures where the routers were implemented on a single chip. This implies a substantial overhead. • Added complexity to achieve guaranteed latency is an overkill in the on-chip context. Analysis: • Low throughput. Means: latency cannot be guaranteed above the maximum throughput levels • Cannot prevent contention from happening. Contention makes router architectures more complex because they need to integrate buffering and prioritization logic. • Routers that implement both packet and circuit switching makes the architecture even more complex.
Modified Multistage n n n Idea • Contention free • Router architecture bufferless because no contention = no need to buffer Which network is almost contention free? • Crossbar with Virtual Output Queues • Crossbar non-scalable What topology resembles a crossbar? • Banyans or Multistage Interconnection Networks. R R R C C C • Unidirectional: Wire Routing issue. • Bidirectional multistage or folded multistage networks: Good • Bidirectional multistage are two entities: n C C C R R R • Going up: adaptive • Going down: deterministic. Means a high probability of contention. R R How to modify the MIN so that it becomes contention free? • Routing in a MIN: Solution: add as many output down links as there is a probability of contention per stage Preliminary Results: latency is minimal throughput is > 90% C R • MIN better than butterfly (previous work) • C Regular MIN • The MIN, so-called “fat-tree” network • The butterfly. n C R R R C C Modified MIN C C C
Proposed work related to Intel’s R & D n Large Experience in Interconnection Networks Evaluation. n Large Experience in ASIC/So. C Design. System C based simulation/performance evaluation environment under development. n n Future investigations • Customized automatic generation of topologies and routers • • that implement bufferless approach. Investigate the automatic generation of bandwidth-asymmetric network for non-equal requirements on the side of the IP-core clients. Mathematical Analysis to Determine Maximum Latency Levels in the context of bufferless architecture routers.
Computer Arithmetic & Cryptography
COE Recent Research Projects: Computer Arithmetic & Cryptography n High-Performance Arithmetic for Cryptographic Applications. n Design of efficient integrated circuits for the inverse computation in different finite fields. n Design of Elliptic Curve Cryptography Architectures using parallel multipliers. n Secure reliable storage system. n Design, Analysis, and FPGA prototyping of High. Performance Arithmetic for Cryptographic Applications.
High-Performance Arithmetic Circuitry for Cryptography n New Modulo Multiplication Algorithm & Circuitry Patent Application Pending. n New High-Radix Multiplier Divider Algorithm and Hardware performing the operation (A*B/N) with hardware complexity close to that of Division operation Patent in Preparation. n Efficient Parallel Implementations of Elliptic Curve Cryptosystems.
Aladdin Modulo Multiplier n n n Public-Key Encryption/Decryption Algorithms Largely depend on the computation of Modulo multiplication (AB mod N). Current Dominant Method is Montgomery’s Circuitry have been modeled and verified using VHDL
High-Radix Multiplier Divider n Theory Fully Developed n For n-bit operands, with k-bit radix system (k > 8), computing (A*B/N) requires (n / k) steps instead of n. n Research is continuing to study full exploitation of such processor faster performance of: • Pure multiplication • Pure division
ECC Efficient Implementations n Efficient High-Speed computation of the Scalar Multiplication operation (ECC) through exploiting parallelism. n Improved Resistance against Side Channel Attacks (SCA): • Parallelism • Randomized computation order starting Least-2 -Most or Most • • n -2 -Least Randomized Number of Processors Randomized coordinate system (affine vs projective) Hardware will be implemented on an FPGA platform.
Available Experience . … n COE has a wide experience in digital circuits and VLSI design. n Work is verified on FPGA platform but can readily be ported onto dedicated VLSI processors. n Developed Circuits & Algorithms can be readily used by INTEL. n Our Needs: • Professional CAD Tools for VLSI design, verification, and synthesis tools e. g. Mentor Graphics tools, Cadence, etc.
Computer Engineering Faculty Research Profile
Dr. Sadiq Sait, Professor n n n Research Interests • Digital Design Automation, VLSI System Design, High Level Synthesis, and Iterative Algorithms. Recent Projects • • Parallelization of Iterative Heuristics for Low Power VLSI Standard Cell Placement', KFUPM, 2003 -2005. Iterative Heuristics for Timing & Low Power VLSI Standard Cell Placement, KFUPM, 2001 -2003. Recent Publications • • • Sadiq M. Sait and Junaid A. Khan, "Simulated Evolution for Timing & Low-Power VLSI Standard Cell Placement", Engineering Applications to Artificial Intelligence (EAAI), Vol. 16, Sep. 2003, pp. 407 -423. Sadiq M. Sait and H. Youssef. Iterative Computer Algorithms with Applications in Engineering: Solving Combinatorial Optimization Problems. December 1999, IEEE Computer Society Press, California. Sadiq M. Sait and H. Youssef. VLSI Physical Design Automation: Theory and Practice, Mc. Graw-Hill Book Co. , Europe, December 1994. Also Co-published by IEEE Press, USA, January 1995 (Hard bound edition).
Dr. Mayez Al-Muhammad, Professor n n n Research Interests • Computer Architecture, Parallel Processing and Algorithms, Computer Networks, and Robotics. Recent Projects • • Design of a Simulator for a Class of Dynamic Execution Processors, KFUPM, 2003 -2004. Design of an Intelligent Telerobotic System, King Abdulaziz City for Science and Technology (KACST). 2000 -2004. Recent Publications • M. Al-Mouhamed, M. Kaleemudding, and H. Youssef, Evaluation of Pipelined Dilated Switch Architectures for ATM Networks, IEEE/ACM Trans. on Networking, Vol. 7, No. 5, October 1999, pp. 724 -740. • • M. Al-Mouhamed, O. Toker, and A-K Al-Harthy, “A 3 D Vision. Based Man-Machine Interface For Hand-Controlled Telerobot”, IEEE Transactions on Industrial Electronics, Vol 52, No 1, 2005, pp. 306 -319. M. Al-Mouhamed, Array Organization in Parallel Memories, International Journal of Parallel Programming (IJPP), Vol 32, No. 2, April, 2004, pp. 123 -163.
Dr. Alaaeldin Amin, Assoc. Professor n n n Research Interests • VLSI Integrated Circuit design, MOS Memory Design and Testing, Computer Arithmetic & Cryptography, Digital System Testing and Asynchronous Design. Recent Projects • High-Performance Arithmetic for Cryptographic Applications Industrial Experience • 8 Years in MOS Memory Design (National Semiconductor MOS Memory R&D) Patents • • 4 US Patents in Flash Memory architectures, circuits & cells 2 Patent Applications for High Performance Arithmetic for Cryptographic Applications. Publications • • • Double-rail encoded self-timed adder with matched delays (IEEE ICEC 2003). Asynchronous Modulo Multiplier for Cryptosystems, (IEEE GCC, 2004 ). Fault Models and Efficient BIST Algorithm for Dual Port Memories (IEEE TCAD 1997).
Dr. Radwan Abdel-Aal, Assoc. Professor n Research Interests • Multidisciplinary applications of abductive networks machine learning in science, engineering and medicine , Data acquisition and analysis for experimental and nuclear physics, Testing of digital systems. n Recent Projects n n • Predicting log properties from seismic data using abductive networks”. 1 Feb-31 Oct 2005, Client: Saudi Aramco, Value: SR 272, 646. Industrial Experience • 4 Years in Digital Systems Design (Microwave Associates Inc. , Bedfordshire, UK). Recent Publications • Abdel-Aal, R. GMDH-based feature ranking and selection for improved classification of medical data, Journal of Biomedical Informatics, 2005. • Abdel-Aal, R. Improving electric load forecasts using network committees, Electric Power Systems Research, v. 74, pp. 83– 94, 2005. • Abdel-Aal, R. Hourly temperature forecasting using abductive networks, Engineering Applications of Artificial Intelligence, v. 17, pp. 543 -556, 2004. • Abdel-Aal, R. Short term hourly load forecasting using abductive networks. IEEE Trans on Power Systems, v. 19, pp. 164 -173, 2004.
Dr. Aiman El-Maleh, Assist. Professor n n n Research Interests • Testing and Synthesis of Digital Systems, Error Correcting LDPC Codes. Recent Projects • • Multi-objective Finite State Machine Encoding using Non-Deterministic Evolutionary Algorithms, KFUPM, 2005 -2007. Efficient Test Relaxation Based Static Test Compaction Techniques for Combinational and Sequential Circuits, KFUPM, 2004 -2005. Industrial Experience • Member of Scientific Staff, Mentor Graphics Corp. Oregon, USA (1995 -1998). Patents • Test Pattern Generation for an Electronic Circuit Using a Transformed Circuit Description, US Patent 5, 528, 604. Recent Publications • • • A. El-Maleh, S. Khursheed, S. Sait, “Static Compaction Techniques for Sequential Circuits Based on Reverse Order Restoration and Test Relaxation” IEEE 14 th Asian Test Symp. , 2005. A. El-Maleh and K. Al-Utaibi, “An Efficient Test Relaxation Technique for Synchronous Sequential Circuits, ” IEEE Transactions on Computer Aided Design of Integrated Circuits, Vol. 23, pp. 933 -940, June 2004. A. El-Maleh and Y. Osais, "Test Vector Decomposition Based Static Compaction Algorithms for Combinational Circuits", ACM Transactions on Design Automation of Electronic Systems, Vol. 8, pp. 430 - 459, Oct. 2003.
Dr. Muhamed El-Rabaa, Assist. Professor n n Research Interests • Recent Projects • • n n n Low-Power Digital Circuits, Digital Communication Circuits, Configurable Computing. Development of Digital Circuit Techniques for Clock Recovery and Data Re -Timing for High Speed NRZ Source-Synchronous Serial Data Communications, KFUPM, 2005 -2007. Fast context switching configurable architectures supporting dynamic reconfiguration for computation intensive applications, 2005 -2007. Industrial Experience • Senior Component Design Engineer, Intel Corp. , Oregon, USA (19951998). Patents • Two US patents in Bi. CMOS design No. 5, 602, 774 (1999) and No. 5, 966, 032 (1997). Recent Publications • • • Muhammad E. S. Elrabaa, "A New Static Differential CMOS Logic with Superior Low Power Performance, " Analog Integrated Circuits and Signal Processing, Vol. 43, No. 2, pp. 183 -190, May 2005. Muhammad E. S. Elrabaa, "An All-Digital Clock Recovery and Data Retiming Circuitry for High Speed NRZ Data Communications, " IEICE Transactions on Electronics (Japan), Vol. E 85 -C, No. 5, P. 1170, May, 2002. Muhammad E. S. Elrabaa, Mohab Anis, and Mohamed Elmasry, "A Contention-Free DOMINO Logic For Scaled-Down CMOS, " IEICE Transactions on Electronics, Vol. E 85 -C, No. 5, P. 1177, May, 2002.
Dr. Ahmad Al-Yamani, Assist. Professor n n n Research Interests • VLSI Design and Test (Test Compression and BIST), Fault Tolerance, Iterative Heuristics. Recent Projects • • Lead the VLSI test experiments at Stanford between 01 and 05. Test data compression using compatibility classes. Industrial Experience • Lead a major test cost saving operation with $millions of annual savings. Patents • Four US patents filed (all related to VLSI test). Recent Publications • • Al-Yamani, A. , E. Chmelar and M. Grinchuk, "Segmented Addressable Scan Architecture, " 23 rd IEEE VLSI Test Symposium (VTS'05), Palm Springs, CA, May 15, 2005. PATENT PENDING TECHNOLOGY Al-Yamani, A. , and E. J. Mc. Cluskey, "BIST-Guided ATPG, " 6 th IEEE International Symposium on Quality Electronics Design (ISQED'05), San Jose, CA, March, 05. Al-Yamani, A. , and E. Mc. Cluskey, "Test Quality for High Level Structural Test, " ACM Transactions on Design & Test of Electronic Systems (TODAES'05), Oct. 05. Mc. Cluskey, E. J. , Al-Yamani, Li, Tseng, Volkerink, Ferhani, Li, and Mitra, "ELFMurphy Data on Defects and Test Sets, " 22 nd IEEE VLSI Test Symposium (VTS’ 04), Napa Valley, CA, Apr. 25 -28, 2004. STANFORD TEST EXPERIMENT.
Dr. Adnan Gutub, Assist. Professor n n n Research Interests • Modeling, simulating, and synthesizing VLSI hardware for cryptography and computer arithmetic operations. Recent Projects • Design of efficient integrated circuits for the inverse computation in different finite fields. • Design of Elliptic Curve Cryptography Architectures using parallel multipliers. Recent Publications • Adnan Abdul-Aziz Gutub and Alexandre F. Tenca, “Efficient Scalable VLSI Architecture for Montgomery Inversion in GF(p)”, Integration, the VLSI Journal, Vol. 37, No. 2, pages 103 -120, May 2004. • Adnan Abdul-Aziz Gutub, “VLSI CORE ARCHITECTURE FOR GF(P) ELLIPTIC CURVE CRYPTO PROCESSOR”, IEEE 10 th International Conference on Electronics, Circuits and Systems (ICECS 2003), pages 8487, University of Sharjah, United Arab Emirates, December 14 -17, 2003. • Adnan Abdul-Aziz Gutub and Alexandre F. Tenca, “ Efficient Scalable Hardware Architecture for Montgomery Inverse Computation in GF(P)”, IEEE Workshop on Signal Processing Systems (SIPS’ 03), pages 93 -98, Seoul, Korea, August 27 -29, 2003.
Dr. Abdelhafid Bouhraoua, Assist. Professor n n n Research Interests • ASIC/So. C Design and Verification Methodologies, Digital System Design, Interconnection Networks, Switch Architectures, Telecommunication protocols, Computer Cryptography and Asynchronous Design. Recent Projects • Study of modified Multistage Interconnection Networks for Networks-on. Chips. • Design and Performance Evaluation of a Distributed Crossbar Scheduler. Industrial Experience • 6 years experience in ASIC Design/Verification, mostly as Chip Architect for AMCC and Zarlink Semiconductor. Worked on Network Processors, SONET, Digital Wrapper, Reed Solomon Codecs, VDSL PHY Chipset, ATM framers, TDM and Ethernet Switches. • Directed product and field testing at Lambda Opticalsystems Corp building an all-optical MEMS-based carrier-class switch. Patents • Patent Applications for VDSL aggregation line-rate circuitry. Publications • Experimental Study of a Generic Router Architecture under MILE, IASTED'97 • Adaptive Message Routing for Compact Reconfigurable Router, IEEE ICECS'97.
Dr. Abdul. Rahim Naseer, Assist. Professor n n n Research Interests • Design Automation and FPGA based Synthesis, Reconfigurable Computing, Hardware Software Co-Design and Embedded Systems, Computer Architecture, Parallel and distributed processing Recent Projects • Software Pipelining for Reconfigurable Instruction Set Processors • Design and Implementation of a Reconfigurable Network Interface • Load Balancing for Parallel Visualization of Blood Head Vessel Angiography on Cluster of PCs Recent Publications • • • A. . R. Naseer, et al. , “Adaptive Pre-Task Assignment scheduling strategy for heterogeneous distributed raytracing system”, Journal IEICE EE , vol. 1, No. 13, October 2004, pp 373 -379 A. R. Naseer, et al. , “Direct Mapping of RTL Structures onto LUT-Based FPGAs”, IEEE Transactions on Computer Aided Design of Integrated Circuits and Systems, Volume 17, July 1998, pp. 624 -631 A. R. Naseer, "FAST : FPGA Targeted RTL Structure Synthesis Technique", Proc. of IEEE/ACM 7 th International Conference on VLSI Design'94 January 1994, pp. 21 -24 (bagged the BEST PAPER AWARD)
Dr. Muhamed Mudawar, Assist. Professor n n n Research Interests • Processor Micro-architecture, Multiprocessors and Interconnection Networks, Parallel programming environments and compilation techniques Recent Projects • • Beyond Instruction-Level Parallelism in Processor Architecture, AUC, 2002 -2003. Shared Channels in Interconnection Networks, AUC 1999 -2000. Recent Publications • • • Mudawar M. , Scalable Cache Memory Design for Large-Scale SMT Architectures, Proc. of the 3 rd Workshop on Memory Performance Issues, June 20 -23 2004, Munich, Germany. Mudawwar M. and Saad A. , The k-ary n-cube Network and its Dual: a Comparative Study, in Proceedings of the 13 th IASTED International Conference on Parallel and Distributed Computing and Systems, August 21 -24, 2001, Anaheim, California, pages 254 -259. Mudawwar M. and Mameesh R. , Region Broadcasting in k-ary mway Networks, in Proc. of the ISCA 13 th International Conference on Parallel and Distributed Computing Systems, August 8 -10, 2000, Las Vegas, Nevada, pages 268 -274.
Dr. Ashraf Mahmoud, Assist. Professor n n Research Interests • 3 G/4 G wireless networking – Wi-Fi and Wi-Max networks, Performance analysis and capacity for wireless networks, Simulation and modeling Recent Projects • • Wireless Local Area Networks Integration for Mobile Networks Operators, 2005. E-Tourism Promoter – An Internet Assisted Location Tracker and Map Reader for Tourists, 2005. Industrial Experience • 5 years with Nortel Networks, Ottawa, Canada Patents • 3 Patent applications in the area of radio resource managements n Recent Publications • • • “Performance of Inter-Base Station Soft Handoff for 3 G CDMA Networks, ” ICMSAO’ 05. “Non-blocking FCFS algorithm for Data Services over Wireless CDMA Networks, ” ICMSAO’ 05 “Buffer Occupancy Analysis For A Broadband Polling-Based WLAN, ” Net. Con'2003)
Dr. Mohammed H. Sqalli, Assist. Professor n n Research Interests • Network Design, Network Management, Iterative Heuristics, Constraint Satisfaction Problems (CSP), and Case-Based Reasoning (CBR). Recent Projects • • A Framework for Integration of Web-based Network Management and Management by Delegation, 2004 -2006. Web Engineering Modern Iterative Heuristics to Solve Hard Computer Network Design Problems, 2004 -2005. Industrial Experience • Senior Automation Testing Specialist, Siemens, Ottawa, Canada (19992002). Recent Publications • • • M. H. Sqalli, and S. Sirajuddin, “Static Weighted Load-balancing for XMLbased Network Management using JPVM”, Proceedings of the 8 th International Conference on Management of Multimedia Networks and Services (MMNS 2005), Barcelona, Spain, October 24 -26, 2005. S. Sirajuddin, and M. H. Sqalli, “Comparison of CSV and DOM Tree Approaches in XML-based Network Management”, Proceedings of the 12 th International Conference on Telecommunications (ICT 2005), Cape Town, South Africa, May 3 -6, 2005. C. Marling, M. H. Sqalli, E. Rissland, H. Muñoz-Avila, and D. Aha, “Case. Based Reasoning Integrations”, AI Magazine, Volume 23, Issue 1, Spring 2002, 69 -86.
Dr. Tarek Sheltami, Assist. Professor n n n Research Interests • Wireless Ad Hoc and Sensor Networks, Wireless mobile Multi-hop voice/video over IP, Pervasive Computing, Heterogeneous Netowrks, Wireless Communication Protocols. Recent Projects • • Wireless Multi-hop Voice over IP over Wi-Fi using Client-Server UDP, 2005. Mobile Patient using sensor network, 2005. Recent Publications • • T. R. Sheltami and H. T. Mouftah, “Average waiting time of Clusterhead Controlled Token for Virtual Base Station On-demand in MANETs, ” ACM ‘Ad Hoc Networks’ of the journal ‘Cluster Computing’, Kluwer Academic Publisher, July 2005, vol. 8, no. 2 -3, pp. 157 -165(9). T. R. Sheltami and H. T. Mouftah, “A Warning Energy Aware Clusterhead (WEAC) for MANETs, ” IEEE Trans. on Wireless Communications, 2005 T. R. Sheltami and H. T. Mouftah, “Power Aware Routing for the Virtual Base Station On-demand Protocol in MANETs, ” The Arabian Journal for Science and Engineering. , Vol 28, number 2 C, 2003. T. R. Sheltami and H. T. Mouftah, “Minimum Power-Routing for the Virtual Base Station On-demand Protocol in MANETs, ” Computer Networks: The Intern. Journal of Computer and Telecommunications Networking 2003.
Dr. Uthman Baroudi, Assist. Professor n Research Interests • Radio Resource Management, Ad hoc Networking, Multiple Access Schemes. n Recent Projects • • n Radio Resource Management and Qo. S Control for Wireless Integrated Services Networks; 75 KSAR, KFUPM from Sep. 2005 Dec. 2006 Adaptive TCP Mechanisms for Wireless Networks, 75 KSAR, KFUPM, from Sep. 2005 -Dec. 2006. Recent Publications • • • U. Baroudi and A. Elhakeem, “A Simulation Study for Adaptive Admission/Congestion Control Policies for CDMA Based Wireless Internet” Wireless Communications and Mobile Computing Journal, 2006. Yaser Al-Jarbou and U. Baroudi, “Performance of Heterogeneous Traffic in Roaming Based Sharing Multi Operator 4 G WCDMA” 2 nd International Symposium on Wireless Communication Systems 2005, Italy. U. Baroudi and A. K. Elhakeem, "A Hybrid TDMA/MC-CDMA Utilizing Multiuser Detection for Integrated Wireless Networks" IEICE Transactions on Communications, Vol. E 83 -B, No. 6, pp. 1308 -1320, June 2000.
Dr. Marwan Abu Amara, Assist. Professor n n n Research Interests • 3 G/4 G wireless networking, Fault-tolerance in wireless & computer networks, Network analysis, planning, and design. Recent Projects • • Wireless Local Area Networks Integration for Mobile Networks Operators, 2005. E-Tourism Promoter – An Internet Assisted Location Tracker and Map Reader for Tourists, 2005. Industrial Experience • Senior Wireless Technical Advisor, Nortel Networks, Richardson, USA (1995 -2003). Patents • “CDMA Inter-Mobile Switching Center Soft Hand-Off, ” with S. Sides, A. Jalali, J. Boppana, S. Doctor, US Patent # 5, 930, 714, 1999, US Patent # 6, 173, 183, 2001. Recent Publications • • A. Mahmoud and M. Abu-Amara, “Performance of Inter-Base Station Soft Handoff for 3 G CDMA Networks, ” Proceeding of the First International Conference on Modeling, Simulation and Applied Optimization, Sharjah, U. A. E. February 2005. M. Abu-Amara, “Minimum Traffic Inter-BS SHO Boundary Selection Algorithm for CDMA-Based Wireless Networks, ” Proceedings of the 2004 IEEE Radio and Wireless Conference, Atlanta, Georgia, September 2004, pp. 51 -53.
Dr. Wasim Raad, Assist. Professor n n n Research Interests • Embedded systems, Smart cards applications, Real time DSP systems Recent Projects • Context aware energy management system • Design of a wireless safety system for smart kitchen • Designing and building a mobile Emergency warning system for patients under health care. Recent Publications • M. W. Raad, J. M. Noras, M. Shafiq and A. Aksoy, ‘Gamma-Ray Peak Detection Algorithms Using Embedded DSP’, ESS Conference, October 2004, UK. • M. W. Raad, J. M. Noras and M. Deriche, ‘Parameter Estimation and Digital Peak Localization Algorithms For Gamma Ray Spectroscopy’, In the proceedings of the fourth International Symposium on Communication systems, Networks and Digital Signal Processing, University of Newcastle, UK, 20 -22 July 2004. • M. W. Raad and J. M. Noras, ‘Moment Preserving parameter estimation and digital online peak localization algorithms for Gamma Ray Spectroscopy’, IEEE Nordic Signal Processing Symposium, June 13 -15, 2000, Kolmarden, Sweden.
Dr. Talal Alkharobi, Assist. Professor n n n Research Interests • Design automation, neural networks, fuzzy logic, information and network security. Recent Projects • • Secure reliable storage system, 2004 -2005. Design, Analysis, and FPGA prototyping of High-Performance Arithmetic for Cryptographic Applications, 2005. Recent Publications • • Hand Writing recognition using Artificial neural network, ICANN 96 – Italy. Secret Sharing using Artificial neural network , Ph. D. dissertation 2004, Texas A&M university - College Station – Texas – USA.