1. doc.: IEEE 802.11-07/2371r0 Submission September 2007 Eldad Perahia (Intel)Slide 1 Review of TGn’s Usage Models Date: 2007-09-07 Authors:

2. doc.: IEEE 802.11-07/2371r0 Submission September 2007 Eldad Perahia (Intel)Slide 2 Abstract Review of TGn’s usage scenarios from 11-03-0802-23-000n-usage-models.doc including Environments Applications Use Cases Usage Models

3. doc.: IEEE 802.11-07/2371r0 Submission September 2007 Eldad Perahia (Intel)Slide 3 Terminology Environment – The type of place in which a WLAN system is deployed Application – a source or sink of wireless data that relates to a particular type of user activity Use case – A description of how an end user uses a system that exercises that system’s deployment of WLAN. A use case includes an application in a deployment environment with details regarding the user activity and both sides of the link. Usage Model – A specification of one or more applications and environments from which a simulation scenario can be created once the traffic patterns of the applications are known. Usage models are created to encompass use cases.

4. doc.: IEEE 802.11-07/2371r0 Submission September 2007 Eldad Perahia (Intel)Slide 4 Environments Residential, Domestic or Home –Intra-room; Room to room; Indoor to outdoor; Large multi-family dwelling Small Enterprise –Enclosed offices; Meeting room / conference room; Classroom Medium/Large Enterprise –Enclosed offices; Meeting room / conference room; Classroom; Sea of cubes; Multi-story office environment; Campus Hotspot –Airport; Library; Convention center; Hotel; Shopping mall; Arcade; Train station / bus terminal; Drive-in window Outdoor –Outdoor sport event; Campus; City Square; Public park; Amusement park Industrial –Indoor; Large factory floor; Hospital; Warehouse; Concert hall / auditorium; Movie theatre Other custom environments –Wireless backhaul; Fixed wireless access: outside to multiple STA inside, outside to multiple STA outside Mobile –Train; Bus; Plane; Roadside APs for data-service in-car (fast roaming)

5. doc.: IEEE 802.11-07/2371r0 Submission September 2007 Eldad Perahia (Intel)Slide 5 Applications DV Audio/video VoD control channel SDTV HDTV (Video/Audio) DVD Video Conf Internet Streaming video/audio Internet Streaming audio VoIP MP3 Audio Content download (photo camera) Internet File transfer (email, web, chat) Local File transfer, printing Interactive Gaming –[Controller to Console x 1] Interactive Gaming –[Console to Display] Interactive Gaming –[Console to Internet Access] –*NOTE : Depends on Game Type Netmeeting application/desktop sharing Video phone Remote user interface (X11, Terminal Server Client) –(remote display/keyboard/mouse)

6. doc.: IEEE 802.11-07/2371r0 Submission September 2007 Eldad Perahia (Intel)Slide 6 Applications with High Offered Load DV Audio/video –28.8 Mbps HDTV (Video/Audio) –19.2-24 Mbps Local File transfer, printing –30 Mbps Interactive Gaming [Console to Display] –100+ Mbps –video image: 320x240x15 @ 60Hz

7. doc.: IEEE 802.11-07/2371r0 Submission September 2007 Eldad Perahia (Intel)Slide 7 Use Cases - Residential Multiple TVs running throughout the home getting their content from a single remotely located AV- server/AP/set top box. Local control of the content (changing channels, etc) Link the home digital camera/video to the TV/display for display of pictures and movies Music real time on multiple receivers throughout the home from a remotely located AV-server/AP/set top box receiver Download digital pictures and home movies to a PC/AV-server

8. doc.: IEEE 802.11-07/2371r0 Submission September 2007 Eldad Perahia (Intel)Slide 8 Use Cases – Enterprise/Industrial One personal phone everywhere – home, office. Each person has a phone that works everywhere, home, office – same number. An extension of the cell phone into the office building. This includes cordless phone over VoIP. Reconfigurable / temporary office space, Ethernet cable replacement (similar throughput to wired cable). Back up files, email, web surfing, printing, etc. Real-time streaming of ultrasound video and real-time viewing of x-ray/MRI/CT images as well as medical diagnostics signal streams / patient monitoring data

9. doc.: IEEE 802.11-07/2371r0 Submission September 2007 Eldad Perahia (Intel)Slide 9 Use Cases – Hotspot/Outdoor Synchronize your local device with the server – email, calendar, etc View broadcast SDTV video/audio at a sporting event Obtain real time interactive player and game stats from your seat at a sporting event Watch a clear replay of an event from your seat in a sporting arena Watch a movie of your choice, when you want it, in your hotel room

10. doc.: IEEE 802.11-07/2371r0 Submission September 2007 Eldad Perahia (Intel)Slide 10 Usage Model - Residential 1 AP 1 STA: 19.2 Mbps HDTV, VoD control channel 1 STA: 24 Mbps HDTV, VoD control channel 1 STA: SDTV, internet file transfer, local file transfer 2 STA: Video Phone 3 STA: VoIP 1 STA: Internet streaming video, MP3 Audio, Video gaming, console to internet, local file transfer 1 STA: Video gaming, controller to console Range: 20 m

11. doc.: IEEE 802.11-07/2371r0 Submission September 2007 Eldad Perahia (Intel)Slide 11 Usage Model – Large Enterprise 1 AP 6 STA: internet file transfer 2 STA: Video Conferencing 2 STA: internet streaming video/audio 14 STA: local file transfer (10 downlink, 4 uplink) 6 STA: VoIP Minimum 15 – 20 meter range

12. doc.: IEEE 802.11-07/2371r0 Submission September 2007 Eldad Perahia (Intel)Slide 12 Usage Model – Hotspot 1 AP 10 STA: Internet file transfer 7 STA: internet streaming video/audio 2 STA: SDTV 15 STA: VoIP

13. doc.: IEEE 802.11-07/2371r0 Submission September 2007 Eldad Perahia (Intel)Slide 13 Simulation Scenario Results Simulations reported BSS Aggregate Goodput at the MAC data SAP –offered load of TCP applications were significantly increased to stress the system Residential –2x2x20MHz: 108 Mbps; 2x2x40MHz: 193 Mbps Large Enterprise –2x2x20MHz: 110 Mbps; 2x2x40MHz: 229 Mbps Hotspot –2x2x20MHz: 101 Mbps; 2x2x40MHz: 200 Mbps

14. doc.: IEEE 802.11-07/2371r0 Submission September 2007 Eldad Perahia (Intel)Slide 14 Question for VHT SG What are the new applications, environments, and usage models that are beyond the capability of 11n devices?

15. doc.: IEEE 802.11-07/2371r0 Submission September 2007 Eldad Perahia (Intel)Slide 15 References 11-03-0802-23-000n-usage-models.doc 11-03-346r0-HTSG- Application_Characteristics_for_HT_Usage_Scenarios. ppt 11-03-489r0-HTSG-Samsung- Home_Usage_Model_for_HT_WLAN_Systems.ppt 11-05-1266-01-000n-tgn-joint-proposal-mac-results.doc