May 2013 doc IEEE 802 11 130524 r

May 2013 doc. : IEEE 802. 11 -13/0524 r 0 HEW Functional Requirements Date: 2013 -5 -13 Authors: Submission Slide 1 Wu Tianyu

May 2013 doc. : IEEE 802. 11 -13/0524 r 0 Purpose of this submission To stimulate technical discussions on limited functional requirements for HEW for the purpose of developing input suitable for Scope and Purpose content. Submission Slide 2 Wu Tianyu

May 2013 doc. : IEEE 802. 11 -13/0524 r 0 Focus of HEW SG • High efficiency WLAN (HEW) SG is started to enhance 802. 11 PHY and MAC in 2. 4 and 5 GHz with a focus on: [1] – Improving spectrum efficiency and area throughput – Improving real world performance in indoor and outdoor deployments • in the presence of interfering sources, dense heterogeneous networks • in moderate to heavy user loaded APs Submission Slide 3 Wu Tianyu

May 2013 doc. : IEEE 802. 11 -13/0524 r 0 Key items to consider 1) Spectrum efficiency 2) Area throughput 3) Real world performance with presence of interference source, dense deployed heterogeneous network 4) Real world performance for moderate to heavy user loaded APs Submission Slide 4 Wu Tianyu

May 2013 doc. : IEEE 802. 11 -13/0524 r 0 Spectrum Efficiency Requirements Ø Improve the spectrum efficiency Ø For a single AP with light to moderate user loading, achieve spectrum efficiency comparable to current state-of-art in other air interface technologies. Submission Slide 5 Wu Tianyu

May 2013 doc. : IEEE 802. 11 -13/0524 r 0 Area Throughput Requirements Ø Increase the area throughput Ø Introduce a new performance metric “area throughput” which is defined by : bits/second/m 2/[Joule] Ø The area throughput performance shall support the dense deployed use cases such as wireless office where a large number of devices in a limited area require a very high total throughput. [2] Submission Slide 6 Wu Tianyu

May 2013 doc. : IEEE 802. 11 -13/0524 r 0 Real World Performance in Indoor and Outdoor Deployments (1/2) Ø Improve the real world performance Ø Increase the MAC efficiency Ø For light to moderate loaded APs, achieve MAC efficiency comparable to current state-of-art in other air interface technologies. Ø For heavy user loaded APs or densely deployed APs, avoid large degradation in MAC efficiency. Ø The quality of experience (Qo. E) for HEW users shall be much better than 11 n/ac users Submission Slide 7 Wu Tianyu

May 2013 doc. : IEEE 802. 11 -13/0524 r 0 Real World Performance in Indoor and Outdoor Deployments (2/2) Ø With the presence of interference source, dense deployed heterogeneous network Ø Heterogeneous systems such as 11 n/ac/HEW will operate in co-located BSSs or overlapped BSSs. Ø In moderate to heavy loaded APs Ø Users shall have good experience for delay sensitive applications such as voice and video in moderate loaded APs. Ø Users shall have acceptable experience for delay sensitive applications in heavy loaded APs. Submission Slide 8 Wu Tianyu

May 2013 doc. : IEEE 802. 11 -13/0524 r 0 Next Steps To continue with the discussion until we have some consensus Submission Slide 9 Wu Tianyu

May 2013 doc. : IEEE 802. 11 -13/0524 r 0 References [1] 11 -13 -0339 -10 -0 wng-high-efficiency-wlan-straw-poll [2] 11 -13 -0313 -00 -0 wng-usage-models-for-next-generation-wi-fi Submission Slide 10 Wu Tianyu