1. doc.: IEEE 802.15-00/099r0 Submission March 2000 Khaled Amer, AmerNetSlide 1 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Performance Modeling Methodology for 802.15 coex. SG] Date Submitted: March 9, 2000 Source: Khaled AmerCompany: AmerNet Address 13711 Solitaire Way, Irvine, CA 92620 Voice:[949-552-1114, FAX: 949-552-1116, E-Mail:khaledamer@usa.net Re: N/A Abstract:steps for a structured methodology for building performance models that would be helpful for developing the coexistance model for 802.15 and 802.11. Purpose:To assist in building the coexistence performance model 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.

2. doc.: IEEE 802.15-00/099r0 Submission March 2000 Khaled Amer, AmerNetSlide 2 IEEE 802.15 - TG 2 Albuquerque, New Mexico March 2000 Khaled Amer Performance Modeling Methodology

3. doc.: IEEE 802.15-00/099r0 Submission March 2000 Khaled Amer, AmerNetSlide 3 Modeling Methodology Understand the Requirements: Understanding the system Understand the available data Build the model Debug the model Validate the model Run various scenarios with the model Presentation of results Document modeling project We’ll focus on #1 and #3

4. doc.: IEEE 802.15-00/099r0 Submission March 2000 Khaled Amer, AmerNetSlide 4 Agree on Requirements  There are infinitely many models of any system  No such thing as a general purpose model  Identify performance metrics  Identify scenarios of interest to be modeled  Identify architectural options that need to be analyzed  What statistics are needed

5. doc.: IEEE 802.15-00/099r0 Submission March 2000 Khaled Amer, AmerNetSlide 5 Objectives of the Model Quantify coexistence of: –Several 802.15 picots –A 802.15 piquant and 802.11 WLAN Effect on BER and performance

6. doc.: IEEE 802.15-00/099r0 Submission March 2000 Khaled Amer, AmerNetSlide 6 Understand available data What data is available? How can it be used What data is missing? How will it limit the study? If needed, how can we get it? Any measurements available or that can be taken? What are estimates and assumptions that are needed? Missing data can be used as a parameter

7. doc.: IEEE 802.15-00/099r0 Submission March 2000 Khaled Amer, AmerNetSlide 7 Scenarios to be modeled Single 802.15 piconet Single 802.11 WLAN Multiple piconets Combinations of piconets and WLANs

8. doc.: IEEE 802.15-00/099r0 Submission March 2000 Khaled Amer, AmerNetSlide 8 Input Parameters for the MAC Model Traffic distributions Interference patterns –For individual piconet/WLAN –Due to coexistence BER

9. doc.: IEEE 802.15-00/099r0 Submission March 2000 Khaled Amer, AmerNetSlide 9 Performance Metrics and required output Metrics: –Throughput –End to end latency (MAC to MAC?) –Jitter –Others? Statistics needed: –Mean –Variance –Histogram or percentiles (for jitter)

10. doc.: IEEE 802.15-00/099r0 Submission March 2000 Khaled Amer, AmerNetSlide 10 Action Items and Discussions Data points for input to the model Traffic distributions Positioning of nodes