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Doc.: IEEE 802.11-00/372r1 Simulation Framework Progress Update - Nov. 2000 November 8, 2000 Matthew Sherman, AT&T Labs - ResearchSlide 1 Simulation Framework.

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Presentation on theme: "Doc.: IEEE 802.11-00/372r1 Simulation Framework Progress Update - Nov. 2000 November 8, 2000 Matthew Sherman, AT&T Labs - ResearchSlide 1 Simulation Framework."— Presentation transcript:

1 doc.: IEEE 802.11-00/372r1 Simulation Framework Progress Update - Nov. 2000 November 8, 2000 Matthew Sherman, AT&T Labs - ResearchSlide 1 Simulation Framework Progress Update - Nov. 2000 Author: Matthew Sherman AT&T Labs - Research 180 Park Avenue Florham Park, NJ 07932 973-236-6791 mjsherman@att.com Date: November 6, 2000

2 doc.: IEEE 802.11-00/372r1 Simulation Framework Progress Update - Nov. 2000 November 8, 2000 Matthew Sherman, AT&T Labs - ResearchSlide 2 Participants Since September ParticipantCompany # mtgs /5 Keith AmannSpectralink2 Greg ChessonAtheros4 Sunghyun ChoiPhillips Research3 Jin-Meng HoTI4 Srini KandalaSharp Labs4 John KowalskiSharp Labs1 Utku MoralOPNET5 Greg ParksShareWave1 Mike RudnickSharp Multimedia2 Taylor SalmanOPNET2 Matthew Sherman AT&T Labs5 Mattew ShowmakerTI1 Aman SinglaAtheros3 V.Srinivasa SomayazuluIntel1 Khaled TurkiTI4 Thierry WalrantPhilips Consumer1 Total Attendance: 12+10+9+5+7 =43 Ave. # participants: 8.6

3 doc.: IEEE 802.11-00/372r1 Simulation Framework Progress Update - Nov. 2000 November 8, 2000 Matthew Sherman, AT&T Labs - ResearchSlide 3 Review of Prior Documents Key Documents: –IEEE 802.11-00/265r1: A Simulation Framework for Evaluation of 802.11 QoS MAC Enhancements –IEEE 802.11-00/196r2: TGe Metrics & Criteria ad hoc group summary report Other documents of Interest: –IEEE 802.11-00/0320r2: September 20 Simulation Ad Hoc Group Minutes –IEEE 802.11-00/0324: Simulation Framework Progress Update –IEEE 802.11-00/0318 Simulation Model for PCF Slides –IEEE 802.11-00/0319 Request for Guidance on Simulation Models –Many other documents of interest referenced in 00/265 and 00/196

4 doc.: IEEE 802.11-00/372r1 Simulation Framework Progress Update - Nov. 2000 November 8, 2000 Matthew Sherman, AT&T Labs - ResearchSlide 4 New Documents of Interest IEEE 802.11-00/0342r4: Ongoing Simulation, Metrics, and Criteria Ad Hoc Group Minutes.doc IEEE 802.11-00/0349r1: Models for MPEG2 and Video Conferencing IEEE 802.11-00/0363: Traffic Descriptions For 802.11E Performance Simulation IEEE 802.11-00/0373: 802.11 PCF Model Progress Update Nov 2000 IEEE 802.11-00/0399: Baseline D-QoS Proposal

5 doc.: IEEE 802.11-00/372r1 Simulation Framework Progress Update - Nov. 2000 November 8, 2000 Matthew Sherman, AT&T Labs - ResearchSlide 5 Framework Software to Date Baseline DCF Models with FixesOPNET –See OPNET’s Wireless LAN October ‘00 Model PCF/DCF MACAT&T Labs –See 00/0373 for latest status Channel ModelIntel –Out of date with current receiver model PHY Overhead ModelPhilips –Only compatible with October Baseline DCF and Multi-source models –PCF and 802.11a versions planned MPEG Source ModelsSharp

6 doc.: IEEE 802.11-00/372r1 Simulation Framework Progress Update - Nov. 2000 November 8, 2000 Matthew Sherman, AT&T Labs - ResearchSlide 6 Framework Software to Date (cont.) Multi-source node / MAC modelOPNET –Allows separate per stream address and priority label Enhanced MAC StatisticsOPNET –Jitter, global, per stream, per burst Raw Packet Generator SourceOPNET –Needed for Self Similar Packet Generation Model 3 ScenarioOPNET –Based on page 21 of 00/0196r2 Modified Model 3 ScenarioTI –Includes additional data streams –Not yet operable

7 doc.: IEEE 802.11-00/372r1 Simulation Framework Progress Update - Nov. 2000 November 8, 2000 Matthew Sherman, AT&T Labs - ResearchSlide 7 Where to find Software Baseline DCF Models with Fixes (October models) –Available as part of current OPNET installation PCF / DCF MAC –Contact Matthew Sherman (mjsherman@att.com) –Currently under NDA NS Models –Contact Greg Chesson (greg@atheros.com) All other software on OPNET 802.11 FTP site Address is: http://www.opnet.com/80211/ Username: 80211 Password: wlan

8 doc.: IEEE 802.11-00/372r1 Simulation Framework Progress Update - Nov. 2000 November 8, 2000 Matthew Sherman, AT&T Labs - ResearchSlide 8 Review of Status as of Sept. ‘00 Decided to create simulation framework (May ‘00) –Apples to Apples comparison of QoS MAC performance –Baseline 802.11 model for comparison Selected simulation tools - OPNET (June ‘00) –Some work in NS Started development of source models and baseline MAC (PCF/DCF) models (June ‘00) Criteria & Metrics document issued (Sept ‘00) –IEEE 802.11-00/196r2: Simulation / Metrics and Criteria ad hocs merge (Sept ‘00) –Start to address turning Metrics & Criteria into scenarios

9 doc.: IEEE 802.11-00/372r1 Simulation Framework Progress Update - Nov. 2000 November 8, 2000 Matthew Sherman, AT&T Labs - ResearchSlide 9 Progress as off Nov ‘00 Have first “Completed” Scenario (Model 3) –Still some “gluing” of pieces to do Have second scenario in works (Modified Model 3) –Adds several data streams to Model 3 –Seems near completion Greatly Enhanced statistics available in DCF MAC –Had per station –Added, global, Per Stream, Jitter, per burst Most enhancements in PCF MAC as well –No per burst yet Various MAC “tweaks” –Packet size fix, etc.

10 doc.: IEEE 802.11-00/372r1 Simulation Framework Progress Update - Nov. 2000 November 8, 2000 Matthew Sherman, AT&T Labs - ResearchSlide 10 Progress as off Nov ‘00 (cont.) Improved source models –Multi-stream model Individual priority and destination per stream –Improved MPEG models Single stream only –Refined Video Conferencing model Uses existing Multi-stream model – Raw Packet Generator source Allows Self similar traffic PHY overhead model –802.11b on DCF only MAC model

11 doc.: IEEE 802.11-00/372r1 Simulation Framework Progress Update - Nov. 2000 November 8, 2000 Matthew Sherman, AT&T Labs - ResearchSlide 11 APST1 ST2ST3 ST4ST5 Stream2 - Voice 2 Stream1 - Voice 1 Stream3 - MPx 1 Stream4 - MPEG2 1 Stream5 - Bulk 1 Stream6 - Voice 3 1: Add Stream1 - Voice 1 2: Wait One Second 3: Add Stream 2 - Voice 2 4: Wait One Second 5: Add Stream 3 - MPx 6: Wait One Second 7: Add Stream 4 - MPEG2 1 8: Wait 10 Seconds 9: Add Stream 5 - Bulk 1 10: Wait 10 Seconds 12: Add Voice 3 “Model 3” (From 00/196r3?)

12 doc.: IEEE 802.11-00/372r1 Simulation Framework Progress Update - Nov. 2000 November 8, 2000 Matthew Sherman, AT&T Labs - ResearchSlide 12 “Modified Model 3” (From 00/363) AP/PC STA5 VC (Video Conferencing) STA4 STA3 STA1STA2 Voice Web_Requests (LP) Web_Objects (LP) Web Requests (HP) Web Objects (HP) File Transfers (MP) Image Transfers (MP) Outgoing Emails (BE) Incoming_Emails (BE) MPEG2 Voice Priority levels: BE = 0 LP = 1 MP = 2 HP = 3 MPEG2 = 4 VC = 5 Voice = 6 R = 7 E-DCF mappings: BE = 0 LP = 1 MP = 1 HP = 2 MPEG2 = 2 VC = 3 Voice = 3 R = 3 Data (dotted) links may be idle most of the time.

13 doc.: IEEE 802.11-00/372r1 Simulation Framework Progress Update - Nov. 2000 November 8, 2000 Matthew Sherman, AT&T Labs - ResearchSlide 13 Open Issues Other scenarios to code Proposed EMACs to drop in scenarios Turn over in group –Drifts from original directions Scenario definitions OPNET vs NS IEEE / ETSI Simulations

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