1. July 2009 Minho Cheong, ETRI and Peter Loc, RalinkSlide 1 Supporting Document for TGac Evaluation Methodology Authors: doc.:IEEE 802.11-09/0838r0 Submission

2. Scenario 3 in TGac Evaluation Methodology In-home entertainment application with multiple flows with varied QoS requirements including lightly- compressed video. This scenario is derived from scenario #1 defined in 802.11n usage model document and modified in order to consider usage model 2a and 2b (PVR’s in residential) defined in ‘11-09-0161-02-00ac-802.11ac- usage-model-document’. Slide 2 July 2009 Minho Cheong, ETRI and Peter Loc, Ralink doc.:IEEE 802.11-09/0838r0 Submission

3. Logical Link in Scenario 3 (detail) (solid and dashed line means heavy and light traffic, respectively) Slide 3 STA2 STA3 STA4 STA1 STA7 STA8 STA9 STA11STA10 STA6STA5 AP LC video VoD control. Blu-ray MPEG2 Blu-ray MP3 Internet control MPEG2 control Blu-ray control Blu-ray control MPEG2 video console control local file transfer video phone video phone July 2009 Minho Cheong, ETRI and Peter Loc, Ralink doc.:IEEE 802.11-09/0838r0 STA12 STA13 STA14 VoIP Submission

4. Logical Link in Scenario 3 (conceptual) Slide 4 STA2 STA3 STA4 STA1 STA7 STA8 STA9 STA11STA10 STA6STA5 AP LC-video from AP PVR to display via AP - PVR with blu-ray quality - PVR with MPEG2 quality Merged entertainment - Internet-streaming video - MP3 audio,video gaming - control to console Video-phone services VoIP services Others - STA-to-STA file transfer already defined in 11n scenario 1 July 2009 Minho Cheong, ETRI and Peter Loc, Ralink doc.:IEEE 802.11-09/0838r0 STA12 STA13 STA14 Submission

5. Service Description in Scenario 3 STA1: Lightly-compressed video from AP STA2: Display with HD MPEG2 quality, VoD control channel STA3: Display with Blu-ray quality, VoD control channel STA4: Display with Blu-ray quality, VoD control channel, Internet/local File transfer STA5: Video Phone STA6: Video Phone STA7: PVR with HD MPEG2 quality STA8: PVR with Blu-ray quality STA9: PVR with Blu-ray quality STA10: Internet streaming video, MP3 Audio, Video gaming, console to internet, local file transfer STA11: Video gaming, controller to console STA12: VoIP phone STA13: VoIP phone STA14: VoIP phone Slide 5 July 2009 Minho Cheong, ETRI and Peter Loc, Ralink doc.:IEEE 802.11-09/0838r0 Submission

6. 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 11ac 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, STA7, STA8 and STA9 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. STA11, STA12, STA 21, STA22) July 2009 Submission doc.:IEEE 802.11-09/0838r0 Slide 6Minho Cheong, ETRI and Peter Loc, Ralink

7. Appendix - Usage Model 2a: Lightly Compressed Video Streaming throughout the home 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. 1.User looks up a program on electronic program guide. 2. 2.User selects a video. 3. 3.Lightly Compressed Video is delivered/uploaded over the wireless network for a period of two hours. 4. 4.User may pause video during 2 hour period then resume watching. 5. 5.Task is complete when user stops watching the video. 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. Slide 7 July 2009 Minho Cheong, ETRI and Peter Loc, Ralink doc.:IEEE 802.11-09/0838r0 Submission

8. Appendix - Usage Model 2b: Compressed video streaming in a room or throughout a home 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. 1.User looks up a program on electronic program guide. 2. 2.User selects a video. 3. 3.Compressed Video is delivered/uploaded over the wireless network for a period of two hours. 4. 4.User may pause video during 2 hour period then resume watching. 5. 5.Task is complete when user stops watching the video. 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 BluRay. 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. Slide 8 July 2009 Minho Cheong, ETRI and Peter Loc, Ralink doc.:IEEE 802.11-09/0838r0 Submission