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February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
WPP SG Telecon Agendafor
26 Feb 2004
Charles R. WrightAzimuth Systems
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
Agenda
• Appointment of telecon secretary
• Approval of minutes from 19 Feb telecon
• Results of email reflector poll
• Discussion of “Slide 7” (now slide 4 :-)
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
Results of Reflector Poll
Number on 802.11 reflector only 8 36%Number on WPP reflector only 4 18%Number on both reflectors 7 32%Number not on either 3 14%Total known attendees 22
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
Overall system
performance predictions
•Coverage•Capacity
Overall system
performance predictions
•Coverage•Capacity
Scope and Purpose of WPP?
System Level Network Variables•AP throughput, forwarding rate under load•Usage context, application•System performance in failover siutations•Association speed…
System Level Network Variables•AP throughput, forwarding rate under load•Usage context, application•System performance in failover siutations•Association speed…
Client/AP Device Level Network Variables•Single client forwarding rate, latency performance•Roaming time, others…
Client/AP Device Level Network Variables•Single client forwarding rate, latency performance•Roaming time, others…
Transmission Variables
•RF path loss•Multipath/fading•EM environment noise•Interference
Transmission Variables
•RF path loss•Multipath/fading•EM environment noise•Interference
Radio Variables•Antenna loading•Environmental•Host EMC, power variation
Radio Variables•Antenna loading•Environmental•Host EMC, power variation
Device Specifications
•Receiver sensitivity•Transmitter power•Antenna pattern•DC power consumption•Host CPU utilization
Device Specifications
•Receiver sensitivity•Transmitter power•Antenna pattern•DC power consumption•Host CPU utilization
Device Ratings
•Consumer product ratings•Application benchmarks, e.g., VoIP, video…
Device Ratings
•Consumer product ratings•Application benchmarks, e.g., VoIP, video…
We must choose some subset of the whole spectrum, or we’ll never finish
* An incomplete listing of potential parameters and metrics
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
Transmission Variables
• Discussion
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
Radio Variables
• Discussion
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
Client/AP Device Level Network Variables
• Discussion
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
System Level Network Variables
• Discussion
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
WPP Document List
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
Docs presented in Telecons(19 Feb 04 to 11 Mar 04)
• 11-04-0187-00-0wpp-telecon-agenda-19-feb-04.ppt
• 11-04-0213-00-0wpp-telecon-agenda-26-feb-04.ppt
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
Jan 2004 802.11 Meeting (Vancouver) Presentations
• 11-04-0038-00-0wpp-ieee-802-11-study-group-overview-2004.ppt
• 11-04-0091-00-0wpp-wpp-project-background-&-roadmap.ppt
• 11-04-0072-01-0wpp-optimization-parallels-with-cdma-cellular-pcs-industry.ppt
• 11-04-0092-00-0wpp-ctia-over-air-test-standard.ppt• 11-03-0928-00-0wng-wpp-approaches-to-issue.ppt• 11-03-0930-00-0wng-wpp-user-experience.ppt
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
Nov 2003 802.11 (Albuquerque) Presentations
• Presented within the Wireless Next Generation standing committee– 11-03-0927-00-0wng-wpp-introduction-&-
overview.ppt– 11-03-0928-00-0wng-wpp-approaches-to-issue.ppt– 11-03-0929-00-0wng-wpp-summary-work-plan-&-
proposal.ppt– 11-03-0930-00-0wng-wpp-user-experience.ppt– 11-03-0931-00-0wng-wpp-simulating-field-
performance.ppt– 11-03-0933-00-0wng-rf-performance-testing.ppt
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
Early WPP Telecon Presentations
• These presentations were made prior to the formation of the 802.11 WPP SG, and can be found on EMC Society WPP web site, maintained by S. Berger:– Factors Affecting Performance, F. Mlinarsky– Standard Methods for Predicting Wireless Performance, P.
Canaan, P. Ellis– CTIA Standard for Over-The-Air Testing of Wireless Devices and
Field Map Movies, M. Foegelle– RDI's Approach to Performance Prediction, K. Britain– Azimuth Test Configuration, F. Mlinarsky– Test Methodology, F. Mlinarsky
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
Backup Information
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
Teleconference Info
• Date: February 26, 2004
• Time: 11 AM Eastern time (1600 UT)
• Duration: 1 hour
• Phone # 1-877-842-9288
• International: +1-847-597-8068
• Passcode: 827 235
• Next: February 26, 2004
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
Email Reflector
• Original reflector: [email protected]– Set up under aegis of EMC Society (S. Berger)
• 802.11 reflector: [email protected]– Requires 802.11 membership to send to it– Can be monitored through 802.11 web site
• 802.11 rules require all SG communication to be through reflector
• This presents a problem for many of original WPP participants
• I encourage people to join 802.11!
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
References for 802.11 Newcomers (1 of 2)
• Web site:– http://grouper.ieee.org/groups/802/11/
• Document server:– http://www.802wirelessworld.com/– Sign up for an account– No need to be an 802.11 member to get an account– Once logged in, “join” 802.11:
• Click on “802.11 WLAN WG” on left• In center window, choose to become a new member
– Click again on “802.11 WLAN WG”• An additional subitem called “Documents” will be revealed – click on
it– You’ve reached the document server!
February 2004
C. Wright, Azimuth Systems
doc.: IEEE 802.11-04/213r0
Submission
References for 802.11 Newcomers (2 of 2)
• Document numbering scheme– WG-YY-NNNN-RR-gggg-English-document-title.ext
• WG = 802 working group number, e.g. “11” as in 802.11
• YY = two digits of year
• NNNN = document number
• RR = document revision number
• gggg = 802.11 group to which the document pertains
– Example:• 11-04-0187-00-0wpp-telecon-agenda-19-feb-04.ppt
