Supporting Document for TGac Evaluation Methodology

1. Supporting Documentfor TGac Evaluation Methodology July 2009 • doc.:IEEE 802.11-09/0838r1 Authors: Submission Slide 1 Minho Cheong, ETRI and Peter Loc, Ralink

2. July 2009 • doc.:IEEE 802.11-09/0838r1 Logical Link in Scenario 3 (in 2D coord.) Submission Slide 2 Minho Cheong, ETRI and Peter Loc, Ralink

3. July 2009 • doc.:IEEE 802.11-09/0838r1 Logical Link in Scenario 4 (in 2D coord.) Submission Slide 3 Minho Cheong, ETRI and Peter Loc, Ralink

4. Appendix - Usage Model 2a: Lightly Compressed Video Streaming throughout the home July 2009 • doc.:IEEE 802.11-09/0838r1 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. 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: • User looks up a program on electronic program guide. • User selects a video. • Lightly Compressed Video is delivered/uploaded over the wireless network for a period of two hours. • User may pause video during 2 hour period then resume watching. • Task is complete when user stops watching the video. Submission Slide 4 Minho Cheong, ETRI and Peter Loc, Ralink

5. Appendix - Usage Model 2b: Compressed video streaming in a room or throughout a home July 2009 • doc.:IEEE 802.11-09/0838r1 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. 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: • User looks up a program on electronic program guide. • User selects a video. • Compressed Video is delivered/uploaded over the wireless network for a period of two hours. • User may pause video during 2 hour period then resume watching. • Task is complete when user stops watching the video. Submission Slide 5 Minho Cheong, ETRI and Peter Loc, Ralink Submission