[place presentation subject title text here] Month Year doc.: IEEE 802.11-00/xxx Month Year [place presentation subject title text here] Date: Sept 16, 2004 Author: Charles R. Wright, Azimuth Systems, Inc., Acton, MA charles_wright@azimuthsystems.com Mike Goettemoeller, Texas Instruments, Santa Rosa goette@ti.com Shravan Surineni, Qualcomm, Concord, MA shravans@qualcomm.com Areg Alimian, CMC, Santa Barbara, MA areg_alimian@aurorastar.net John Doe, Some Company John Doe, Some Company

Abstract [place presentation abstract text here] Month Year doc.: IEEE 802.11-00/xxx Month Year Abstract [place presentation abstract text here] John Doe, Some Company John Doe, Some Company

802.11 Template Instructions 1/4 Month Year 802.11 Template Instructions 1/4 To properly identify your PowerPoint presentation as an IEEE 802.11 Submission there are 7 steps that you must complete, and 12 data fields that you must fill in. Step 1. Obtain a document number. Step 2. Title slide: Fill in the presentation subject title text, full date and the full author(s) details (a total of 3 data fields). Step 3. Abstract slide: Fill in the abstract text. Step 4. Menu select File, Properties. Fill in the 2 data fields: Author field = first author's name Company field = company name John Doe, Some Company

802.11 Template Instructions 2/4 Month Year doc.: IEEE 802.11-00/xxx Month Year 802.11 Template Instructions 2/4 Step 5. Menu select View, Master, Slide Master. Place the document title in the right hand side of the header. Title example "doc.: IEEE 802.11-04/9876" , or "doc.: IEEE 802.11-04/9876r2" Step 6. Menu select View, Header and Footer (5 data fields): Slide tab: Header = venue date (Month Year) Footer = first author, company Notes tab: Data and time, Fixed = venue date (Month Year) Header = document title (e.g. “doc.: IEEE 802.11-04/9876”) Click "Apply to all". Step 7. Delete the four template instruction slides. John Doe, Some Company John Doe, Some Company

802.11 Template Instructions 3/4 Month Year 802.11 Template Instructions 3/4 PowerPoint Submission Preparation Summary: Things to do: 7 Fields to fill in: 12 John Doe, Some Company

802.11 Template Instructions 4/4 Recommendations Month Year 802.11 Template Instructions 4/4 Recommendations a) Always start a new presentation using the template, rather than using someone else's presentation. b) For quick and easy creation of new 802.11 submissions, place the 802.11 template files in the template folder area on your computer. Typical locations are: c:\Program Files\Microsoft Office\Templates\802.11, or c:\Documents and Settings\User Name\Application Data\Microsoft\Templates\802.11 To create a new submission, menu select File, New, then select the appropriate 802.11 template file. c) When you update or revise your presentation, remember to check all 6 fields in steps 5 and 6 for the correct values. rev: de20040722 John Doe, Some Company

Outline Needs of the TGT users Test environments The metrics Month Year Outline Needs of the TGT users Test environments The metrics Relationship of metrics to application performance John Doe, Some Company

Month Year Needs of TGT users TGT should enable TGT users to analyze performance of their wireless devices and systems when specific network applications being run over them Data, streaming multimedia, VoIP TGT users need repeatable measurements TGT users need … John Doe, Some Company

Month Year Test Environments The block diagrams to follow are very generic and represent a starting point for discussion It may not be obvious what each block means Will explain after the block diagrams The blocks are functional and does not mean that they must exist as separate equipment Some of the blocks may not currently exist John Doe, Some Company

Radiated Environment With Multipath Month Year Radiated Environment With Multipath Anechoic Chamber Traffic Generator & Analyzer 802.11 Device Bidirectional Multipath Simulator DUT V.A. Adjacent Channel Intereferer V.A. Ethernet = RF signal path John Doe, Some Company

Radiated Environment, No Multipath Month Year Radiated Environment, No Multipath Anechoic Chamber Traffic Generator & Analyzer 802.11 Device DUT V.A. Adjacent Channel Intereferer V.A. Ethernet = RF signal path John Doe, Some Company

Conducted Environment With Multipath Month Year Conducted Environment With Multipath Traffic Generator & Analyzer 802.11 Device Bidirectional Multipath Simulator DUT V.A. Adjacent Channel Intereferer V.A. Ethernet = RF signal path John Doe, Some Company

Conducted Environment, no Multipath Month Year Conducted Environment, no Multipath Traffic Generator & Analyzer 802.11 Device DUT V.A. Adjacent Channel Intereferer V.A. Ethernet = RF signal path John Doe, Some Company

Traffic Generator & Analyzer Month Year Open Air Environment Traffic Generator & Analyzer 802.11 Device DUT Ethernet The open air environment does not guarantee repeatable reasults, but is seen as a useful environment for some tests John Doe, Some Company

A Starting List of Metrics Month Year A Starting List of Metrics Layer 2 metrics Maximum forwarding rate, FRMOL MSDU loss rate Delay Jitter PHY layer metrics MPDU loss rate Rate vs. range Needs to be fully defined Adjacent channel, next adjacent channel interference Device level Antenna pattern More… AP performance metrics Transition time (roaming) metrics John Doe, Some Company

Relationship of link layer metrics to application performance Month Year Relationship of link layer metrics to application performance Application performance can be predicted using link layer metrics Models exist for VoIP (ITU G.107), data Analogous models are being developed for video in the ITU A very limited set of standard applications (ie, non vendor-specific) may need to be measured directly Case in point: FTP Might mean we add another metric: data throughput Definition to be agreed on in the group Recognizes importance of real (not estimated) performance for this application metric John Doe, Some Company

Relationship of PHY layer and device metrics to user experience Month Year Relationship of PHY layer and device metrics to user experience Receiver sensitivity combined with antenna pattern determines range, given no interference For a given channel condition and transmitter power Defining the methodology for measuring Rx sensitivity and antenna pattern is work the group must take on Adjacent (next adjacent) channel interference characteristics also impacts range and usability This deserves a lot of discussion because it can significantly impact user experience The group must take this work on John Doe, Some Company