1999-06-14 IEEE 802.16sc-99/13 -- 1 -- Project IEEE P802.16 Broadband Wireless Access Working Group Title Dispersive Fade Margin: A Physical Layer Performance Metric Date Submitted 14 June, 1999 Source John Liebetreu SiCOM, Incorporated 7585 East Redfield Road Scottsdale, AZ 85260 Voice: 480-607-4830 Fax: 480-607-4806 E-mail: john@sicom.com Re: Responsive to: 802.16 System Requirements Group Call for more contributions Item #6, Description of Physical Layer Performance Metrics 19 May 1999 Abstract This paper describes a radio equipment “signature,” a means of comparing different digital radio designs in their sensitivity to multipath fading, and reviews the concept of DFM, dispersive fade margin, as a measure of the expected outage due to selective fading. Since dispersive fade margin accounts for all contributions to sensitivity of a digital radio operating in a frequency-selective fading environment, it provides an ideal metric for comparing digital radios with one another. Purpose The radio equipment signature, described in this document is proposed for consideration as a performance metric to facilitate comparison of different digital radio designs, each of which may comply with emerging air interface standards. Although different radios may each be standards-compliant, applying performance metrics such as DFM and radio signatures such as those identified herein will provide a valuable discriminant among vendor offerings. Notice This document has been prepared to assist the IEEE P802.16. 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 may be made publicly available by 802.16.