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Doc.: IEEE 802.11-13/0113r0 Submission January 2013 Huai-Rong Shao, et al. (Samsung Electronics)Slide 1 Applications and Requirements for Next Generation.

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Presentation on theme: "Doc.: IEEE 802.11-13/0113r0 Submission January 2013 Huai-Rong Shao, et al. (Samsung Electronics)Slide 1 Applications and Requirements for Next Generation."— Presentation transcript:

1 doc.: IEEE 802.11-13/0113r0 Submission January 2013 Huai-Rong Shao, et al. (Samsung Electronics)Slide 1 Applications and Requirements for Next Generation WLAN Date: 2013-01-15 Authors:

2 doc.: IEEE 802.11-13/0113r0 Submission Motivation In the past few 802.11 WNG meetings, several topics were proposed for next generation WLAN –Carrier-operated Wi-Fi –6-10 GHz Wi-Fi, etc. In this presentation, we share our views on some applications and requirements for next generation WLAN January 2013 Huai-Rong Shao, et al. (Samsung Electronics)Slide 2

3 doc.: IEEE 802.11-13/0113r0 Submission Trend: Wireless Connectivity for “Cloud” Currently, various applications and systems are under Cloud umbrella Wi-Fi is one essential local connectivity solution for devices to access cloud resources Cloud computing assumes low layer communications always reliable and available However, it may not be true for today’s WLAN January 2013 Huai-Rong Shao, et.al. (Samsung Electronics)Slide 3 Cloud

4 doc.: IEEE 802.11-13/0113r0 Submission Traffic Type: Mobile Video The Cisco® Visual Networking Index (VNI) Global Mobile Data Traffic Forecast Update showed that –>50% for the first time in 2011 –Forecasted >70% by 2016 January 2013 Huai-Rong Shao, et.al. (Samsung Electronics)Slide 4

5 doc.: IEEE 802.11-13/0113r0 Submission Mobile Video: Wi-Fi vs Cellular Gartner Group projected in the report of “Market Trends: Worldwide, the State of Mobile Video, 2012” –70% of mobile video users will use only Wi-Fi to view mobile video –The remainder of the market relying on a mix of cellular and Wi-Fi networks to gain access. January 2013 Huai-Rong Shao, et.al. (Samsung Electronics)Slide 5

6 doc.: IEEE 802.11-13/0113r0 Submission Uplink Video At present, video streaming is predominately downlink In the future, it is possible more and more video will be real- time streamed or uploaded through uplink –e.g., Whatever you see will be recorded and streamed/uploaded through a video camera mounted on your head Both indoor and outdoor –Further, extra videos may be added with what you do automatically When you look at something in a store, the video introductions can be streamed/uploaded together January 2013 Huai-Rong Shao, et.al. (Samsung Electronics)Slide 6

7 doc.: IEEE 802.11-13/0113r0 Submission7 CES 2013 showed many TVs to support UHD 4K video UHD 8K video is predicted to be widely available in 2016 to 2020 –UHD video data rate requirement Pixel resolution of UHD: 7680x4380 –16 times of standard HD video Data rate per uncompressed UHD stream: –144 Gbps Compressed data rate per UHD stream: –14.4 ~ 28.8 Gbps based on 60GHz H.264 visually lossless compression ratio: 5~10 times Ultra High Definition (UHD) Video Huai-Rong Shao, et.al. (Samsung Electronics) January 2013

8 doc.: IEEE 802.11-13/0113r0 Submission8 Two major video application areas –Pre-stored video such as TV broadcasting and Blue-ray movies High compression ratio: can go up to several hundreds (MPEG, H.264 and now HEVC) Long latency: Both intra-frame and inter-frame video processing, also multi-frame reference schemes –Real-time video such as Wi-Fi display and 60GHz display extension Low compression ratio: usually at the order of 10 Low-latency: Mainly intra-frame video processing Uncompressed videoCompressed video (natural video ) Compressed video (synthetic video or hybrid video) Wi-Fi display3 GbpsAbout 70~150 MbpsAbout 100~300 Mbps 60 GHz display extension3~10 GbpsAbout 300 Mbps ~ 1 GbpsAbout 600~1.5 Gbps UHD 8KUp to 144 GbpsAbout 7 ~14 GbpsAbout 14 ~28 Gbps Ultra High Definition (UHD) Video Huai-Rong Shao, et.al. (Samsung Electronics) January 2013

9 doc.: IEEE 802.11-13/0113r0 Submission Immersive Interactive Multimedia 6 sense information types: AV, smell, touch, gesture etc.; and real 3D video objects (e.g. cheoptics360) Much more information is included in the content streams than that presented to the user Information rendered to the user can be dynamically changed based on the real-time interaction from user Scenario Description: –A user watch TV (Streaming case) or for video tel- conf (Two way real-time video case) is surrounded by a immersive multimedia environment Contents adjusted based on users’ status and intensions –For example, if user moves closer to a video object, more detailed information will be transmitted from the server or the other part of the tel-conf –Second example, if a user starring at one object for a while, many related information will be delivered from different sources from the Internet

10 doc.: IEEE 802.11-13/0113r0 Submission Technical Challenges/Requirements January 2013 Huai-Rong Shao, et.al. (Samsung Electronics)Slide 10 Scalability in terms of –Network size: several devices up to hundreds –User data rate: up to several hundred Gbps –Transmission latency: <10ms –Reliability: No end-to-end error (ideally) Low power consumption –Very important for mobile devices QoS –Still the key hurdle for AV applications particularly for end-to-end QoS Security & privacy –Protection from virus and hacking while prevent illegal information exchanging Robustness management –See next page

11 doc.: IEEE 802.11-13/0113r0 Submission11 Interference becomes more serious –Wi-Fi are widely used by mobile and CE devices and more and more interferences are observed Most devices such as smart phones can act as APs now –Many other types of devices emitting in the unlicensed band dwarf the number of 802.11 devices Microwave ovens, cordless phones, Bluetooth devices, wireless video cameras, outdoor microwave links, wireless game controllers, Zigbee devices, fluorescent lights, and so on. Service interruption caused by network switching –As an example in Hyatt Vancouver, already connected to hotel Wi-Fi and run different applications, and then need to manually switch to “Verilan” for 802 meeting attendance sign in –This kind of network switching may be OK for some applications, but may not OK for time critical applications Real-time video streaming, On-line group gaming, Video chatting and tel-conference, etc. Robustness Management Huai-Rong Shao, et.al. (Samsung Electronics) January 2013

12 doc.: IEEE 802.11-13/0113r0 Submission Next Step Detailed analysis on the requirements from each application and use case. Identify the aspects of current 802.11 that need to be improved. Discuss with interested parties and identify marketing and technical issues of next generation WLANs. January 2013 Huai-Rong Shao, et.al (Samsung Electronics)Slide 12

13 doc.: IEEE 802.11-13/0113r0 Submission Thank you! January 2013 Huai-Rong Shao, et.al. (Samsung Electronics)Slide 13

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