July 2009 doc IEEE 802 11 -09 0838

July 2009 doc. : IEEE 802. 11 -09/0838 r 0 Supporting Document for TGac Evaluation Methodology Authors: Submission Slide 1 Minho Cheong, ETRI and Peter Loc, Ralink

doc. : IEEE 802. 11 -09/0838 r 0 July 2009 Scenario 3 in TGac Evaluation Methodology • In-home entertainment application with multiple flows with varied Qo. S requirements including lightlycompressed video. • This scenario is derived from scenario #1 defined in 802. 11 n usage model document and modified in order to consider usage model 2 a and 2 b (PVR’s in residential) defined in ‘ 11 -09 -0161 -02 -00 ac-802. 11 acusage-model-document’. Submission Slide 2 Minho Cheong, ETRI and Peter Loc, Ralink

doc. : IEEE 802. 11 -09/0838 r 0 July 2009 Logical Link in Scenario 3 (detail) (solid and dashed line means heavy and light traffic, respectively) STA 12 Vo. IP STA 7 control MPEG 2 STA 8 LC video Vo. D MPEG 2 control AP Blu-ray MP 3 video console STA 11 video phone control Internet Blu-ray control STA 10 Vo. IP STA 14 local file transfer console control STA 6 Submission STA 3 STA 4 MPEG 2 STA 13 Vo. IP Blu-ray control STA 9 STA 2 STA 5 Slide 3 video phone Minho Cheong, ETRI and Peter Loc, Ralink

doc. : IEEE 802. 11 -09/0838 r 0 July 2009 Logical Link in Scenario 3 (conceptual) STA 1 LC-video from AP STA 7 STA 2 PVR to display via AP - PVR with blu-ray quality - PVR with MPEG 2 quality STA 12 STA 8 STA 3 AP STA 13 STA 9 STA 4 Merged entertainment - Internet-streaming video - MP 3 audio, video gaming - control to console Video-phone services Vo. IP services STA 14 STA 11 STA 10 STA 6 Submission Others - STA-to-STA file transfer STA 5 Slide 4 already defined in 11 n scenario 1 Minho Cheong, ETRI and Peter Loc, Ralink

doc. : IEEE 802. 11 -09/0838 r 0 July 2009 Service Description in Scenario 3 • • • • STA 1: Lightly-compressed video from AP STA 2: Display with HD MPEG 2 quality, Vo. D control channel STA 3: Display with Blu-ray quality, Vo. D control channel STA 4: Display with Blu-ray quality, Vo. D control channel, Internet/local File transfer STA 5: Video Phone STA 6: Video Phone STA 7: PVR with HD MPEG 2 quality STA 8: PVR with Blu-ray quality STA 9: PVR with Blu-ray quality STA 10: Internet streaming video, MP 3 Audio, Video gaming, console to internet, local file transfer STA 11: Video gaming, controller to console STA 12: Vo. IP phone STA 13: Vo. IP phone STA 14: Vo. IP phone Submission Slide 5 Minho Cheong, ETRI and Peter Loc, Ralink

doc. : IEEE 802. 11 -09/0838 r 0 July 2009 About Devices with 1 -2 Antennas • There is a proliferation of video/data traffic from small-form factor devices with 1 -2 antennas. e. g. , netbooks, smart-phones, camcorders, video-cams. • There is need to ensure that 11 ac standards proposals scales network throughputs in the presence of such devices. • So, need to incorporate 1 -2 antenna devices in simulation scenarios, to evaluate technology proposals. – In scenario 3, STA 7, STA 8 and STA 9 may be PVR devices (such as handheld camcorders with 1 -2 antennas). – In scenario 4, some devices involved in local file transfers may be netbooks or smartphones with 1 -2 antennas. (e. g. STA 11, STA 12, STA 21, STA 22) Submission Slide 6 Minho Cheong, ETRI and Peter Loc, Ralink

doc. : IEEE 802. 11 -09/0838 r 0 July 2009 Appendix - Usage Model 2 a: Lightly Compressed Video Streaming throughout the home Pre-Conditions: User has operational WLAN network which includes a TV with wireless capabilities, a PVR with wireless capabilities, and an AP associated with the WLAN that is not in the same room as the game machine and TV. Application: User can display the output of the PVR wirelessly on the TV using a video codec like Motion 2000 JPEG that lightly compresses video. Environment: Two story, three bedroom house with an AP in one corner in the den. Other homes in the area are also operating WLANs. Transmissions are mostly Non-LOS. Distance between far corners of the home are ~100 feet with as many as 8 walls (and one floor) between the video end points. Submission Slide 7 Traffic Conditions: Occasional interference from other homes because WLAN is on other channels. Data transfers consuming up to 20% of the total bandwidth, 2 additional video streams, and wireless display/controllers from a video game machine may be occurring during this use case. Microwave may be running for up to 5 minutes. Use Case: 1. User looks up a program on electronic program guide. 2. User selects a video. 3. Lightly Compressed Video is delivered/uploaded over the wireless network for a period of two hours. 4. User may pause video during 2 hour period then resume watching. 5. Task is complete when user stops watching the video. Minho Cheong, ETRI and Peter Loc, Ralink

doc. : IEEE 802. 11 -09/0838 r 0 July 2009 Appendix - Usage Model 2 b: Compressed video streaming in a room or throughout a home Pre-Conditions: User has operational WLAN network which includes a TV with wireless capabilities, a PVR with wireless capabilities, and an AP associated with the WLAN that is not in the same room as the game machine and TV. Application: User can display the output of the PVR wirelessly on the TV using high definition compressed video with a codec like Blu. Ray. Expect three or four simultaneous HD streams. Environment: Two story, three bedroom house with an AP in one corner in the den. Other homes in the area are also operating WLANs. Transmissions are mostly Non-LOS. Distance between far corners of the home are ~100 feet with as many as 8 walls (and one floor) between the video end points. Submission Slide 8 Traffic Conditions: Severe interference from multiple streams in the house and other homes because WLAN is on other channels. High speed data transfers consuming up to 20% of the total bandwidth, many additional video streams, and wireless display/controllers from a video game machine may be occurring during this use case. Microwave may be running for up to 5 minutes. Use Case: 1. User looks up a program on electronic program guide. 2. User selects a video. 3. Compressed Video is delivered/uploaded over the wireless network for a period of two hours. 4. User may pause video during 2 hour period then resume watching. 5. Task is complete when user stops watching the video. Minho Cheong, ETRI and Peter Loc, Ralink