2. doc.: IEEE 802.11-06/1059r0 Submission July 2006 Mathilde Benveniste, Avaya LabsSlide 1 Next generation MAC Notice: This document has been prepared to assist IEEE 802.11. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.11. Patent Policy and Procedures: The contributor is familiar with the IEEE 802 Patent Policy and Procedures, including the statement "IEEE standards may include the known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent holder or applicant with respect to patents essential for compliance with both mandatory and optional portions of the standard." Early disclosure to the Working Group of patent information that might be relevant to the standard is essential to reduce the possibility for delays in the development process and increase the likelihood that the draft publication will be approved for publication. Please notify the Chair as early as possible, in written or electronic form, if patented technology (or technology under patent application) might be incorporated into a draft standard being developed within the IEEE 802.11 Working Group. If you have questions, contact the IEEE Patent Committee Administrator at.http:// ieee802.org/guides/bylaws/sb-bylaws.pdfstuart.kerry@philips.compatcom@ieee.org Date: 2006-07-17 Authors:

3. doc.: IEEE 802.11-06/1059r0 Submission July 2006 Mathilde Benveniste, Avaya LabsSlide 2 Introduction Earlier presentations (06/408, 06/632) dealt with 802.11 MAC enhancement A range of applications will benefit from the enhancement of the MAC Multi-media Network management 802.11 WLAN backbone

4. doc.: IEEE 802.11-06/1059r0 Submission July 2006 Mathilde Benveniste, Avaya LabsSlide 3 Parallel efforts There is an effort currently going on to create a standard amendment for the consumer electronics market Other efforts will probably follow focusing on each of the other application areas These multiple efforts will have many overlapping features

5. doc.: IEEE 802.11-06/1059r0 Submission July 2006 Mathilde Benveniste, Avaya LabsSlide 4 Common MAC Requirements The various application areas have the following common MAC requirements: High aggregate throughput High node throughput Low latency Broadcast/multicast capability Robust prioritization of traffic Control channel Compatibility with existing standards

6. doc.: IEEE 802.11-06/1059r0 Submission July 2006 Mathilde Benveniste, Avaya LabsSlide 5 A single next generation MAC With respect to the MAC, rather than pursuing multiple fragmented efforts, it is possible to seek a single next generation MAC amendment to meet the common needs of multiple application areas While, in general, a TG with a broad scope can take longer to complete, the presence of common requirements in these applications makes it feasible to complete fast Pursuing a single MAC amendment is beneficial –Economies in chip development –Prevents talent dilution at the standards

7. doc.: IEEE 802.11-06/1059r0 Submission July 2006 Mathilde Benveniste, Avaya LabsSlide 6 Feasibility of a single MAC solution The CCC MAC (doc 06/632r1) is an example of a MAC protocol that meets the needs of these diverse applications well Other solutions may exist that are even better

8. doc.: IEEE 802.11-06/1059r0 Submission July 2006 Mathilde Benveniste, Avaya LabsSlide 7 AP serves enhanced and legacy stations on multiple channels BSS can support multiple CE devices with CCC AP WiFi phone HDTV Camcorder Desktop PDA Laptop Printer Dual WiFi/cell camera phone Multimedia games MP3 Player PVR Camera

9. doc.: IEEE 802.11-06/1059r0 Submission July 2006 Mathilde Benveniste, Avaya LabsSlide 8 CCC deals with WLAN traffic load concentration on an 802.11 backbone Infrastructure APs concentrate BSS traffic to/from DS –Multi-radio devices will accommodate high aggregate BSS throughput closer to the portal Multi-channel MAC will leverage the available RF spectrum fully Minimal delays may be incurred at each hop Load =x Load =3x Load =7x Load =15x Portal Load =30x AP

10. doc.: IEEE 802.11-06/1059r0 Submission July 2006 Mathilde Benveniste, Avaya LabsSlide 9 CCC accommodates network management Optimal channel selection is possible through surveillance of channels for interference, and signaling between stations/APs A control channel facilitates the exchange of network management information CCC enables broadcasting/multicasting

11. doc.: IEEE 802.11-06/1059r0 Submission July 2006 Mathilde Benveniste, Avaya LabsSlide 10 CCC provides backward compatibility The continued growth of 802.11 WLANs hinges on its ability to be compatible with earlier generation 802.11 devices CCC is backward compatible, as it can co-exist with legacy stations and APs, enhancing their performance

12. doc.: IEEE 802.11-06/1059r0 Submission July 2006 Mathilde Benveniste, Avaya LabsSlide 11 Objective To form a study group to propose a next generation MAC that supports the common needs of various applications Such applications include the following: –Voice and Multimedia –802.11 wireless backbone –Network management

13. doc.: IEEE 802.11-06/1059r0 Submission July 2006 Mathilde Benveniste, Avaya LabsSlide 12 Straw Poll Support the formation of an enhanced MAC study group that deals with multiple applications, including the following: –Voice and Multimedia –802.11 wireless backbone –Network management

14. doc.: IEEE 802.11-06/1059r0 Submission July 2006 Mathilde Benveniste, Avaya LabsSlide 13 Motion Move that the IEEE 802.11 WG form a Study Group to study the feasibility of an enhanced but backward compatible MAC protocol to support the common needs of multiple applications, such as voice and multimedia, 802.11 wireless backbone, and network management, with the intent to furnish the PAR and five criteria for the formation of a task group to develop a next generation MAC amendment.