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Coexistence Assurance Summary

An overview of the 802.15.3c coexistence assurance document, providing information on scenarios and mitigation techniques.

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Coexistence Assurance Summary

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  1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)‏ Submission Title: [Coexistence assurance summary] Date Submitted: [22 January, 2009] Source: [James P. K. Gilb] Company [SiBEAM, Inc.] Address [555 N. Mathilda, Suite 100, Sunnyvale, CA 94085] Voice: [408-245-3120], FAX: [408-245-3120], E-Mail: [last name at ieee dot org] Re: [P802-15-3c-D00_Draft_Amendment.pdf] Abstract: [Overview of the 802.15.3c coexistence assurance document.] Purpose: [Provide an overview of the 802.15.3c coexistence assurance document.] Notice: This document has been prepared to assist the IEEE P802.15. 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 acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15. Dr. James P. K. Gilb, SiBEAM

  2. Dr. James P. K. Gilb, SiBEAM Type of devices • Video source/sinks • TX power 10 dBm • Antenna gain 13 dB • Non-line-of-sight (NLOS) channel over a 5 m range. • PC/laptops • TX power 10 dBm • Antenna gain 10 dB • line-of-sight (LOS)/ NLOS over 2-3 m. • Handheld • TX power 0 dBm • Antenna gain of 10 dBi • LOS channel over 1 m.

  3. Dr. James P. K. Gilb, SiBEAM Scenario 1: Video streaming WPAN traffic is video streaming,vary DEV2 position Criteria is pass/fail once BER > 10-4

  4. Dr. James P. K. Gilb, SiBEAM Scenario 1 results • Conditions: • PNC1 and DEV1 have completed beam forming • DEV2's antenna is pointed directly at TV • Time utilization is 100% for both networks

  5. Dr. James P. K. Gilb, SiBEAM Mitigation When DEV1/PNC1 detect interference, beam forming will select an alternate path, using LQI to find a better path

  6. Dr. James P. K. Gilb, SiBEAM Scenario 2: Data transmission Both networks are streaming data,vary PNC2 position Criteria is throughput

  7. Dr. James P. K. Gilb, SiBEAM Scenario 2 results • Conditions: • Assume CCI behaves like AWGN • Steepness of SNR curve causes sharp fall off in throughput • Time utilization is 100% for both networks

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