1. 19 November 2009
Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: OFDM Topics
Date Submitted: 19 November 2009
Source: Emmanuel Monnerie Company Landis+Gyr
Address Mill Creek Avenue, Alpharetta, GA 30022
Voice: , emmanuel . landisgyr.com
Re:
Abstract: OFDM subgroup meeting notes
Purpose:
Notice: This document has been prepared to assist the IEEE P 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 P
Emmanuel Monnerie, Landis+Gyr

2. 19 November 2009
OFDM Topics
2009/11/19
Emmanuel Monnerie, Landis+Gyr

3. Participants Steve Shearer (Ind.)
19 November 2009
Participants
Steve Shearer (Ind.)
Anuj Batra, Tim Schmidl (Texas Instruments)
Kuor-Hsin Chang (Elster)
Sangsung Choi (EPRI)
Baskar Banerjee, Jeritt Kent, Chuck Millet (Analog Devices)
John Geiger, Daniel Sexton (GE)
Emmanuel Monnerie, Dave Olson, Ruben Salazar, Nick West (Landis+Gyr)
Emmanuel Monnerie, Landis+Gyr

4. Action Items Harmonization with FSK Device Classes (postponed)
19 November 2009
Action Items
Harmonization with FSK
Channel Map
Data rates
Clocks/Sampling Frequencies
Device Classes (postponed)
Comments for Doc # 738 (this afternoon ?)
Next Meetings/Conference Calls with FSK
Simplification of the proposal
Preparation for LA
Editing process
Use Cases
Emmanuel Monnerie, Landis+Gyr

5. Harmonization with FSK
19 November 2009
Harmonization with FSK
Hopping mechanism
Need to have a synchronized option with FSK’s hopping sequence
Need to consider shorter packets provided by higher data rate MCS’s
Need to consider multiple packets (data + ack) within the same channel
This will be largely defined in the MAC discussions
Emmanuel Monnerie, Landis+Gyr

6. Harmonization with FSK
19 November 2009
Harmonization with FSK
Data rates
Tone spacing of kHz (?, to be checked against crystal frequencies). Check Japanese Regulation for Option 2
Small advantage in matching (Bridge, application,…)
Emmanuel Monnerie, Landis+Gyr

7. Harmonization with FSK
19 November 2009
Harmonization with FSK
Channel Map/Bandwidth
Significant advantage in matching with FSK
Match band coverage + TVWS
Need to time synchronize
More a MAC layer issue
Emmanuel Monnerie, Landis+Gyr

8. Simplification of the proposal
19 November 2009
Simplification of the proposal
MCS levels corresponding to 3dB steps
Option 5: useful for European regulation (doc REC 70-03, 2 June 2009)
Update number of active tones (see 738)
Added 50 kbps in option 2
Keeping data rates above 50 kbps
Emmanuel Monnerie, Landis+Gyr

9. Meetings/Document Next Meetings/Conference Calls with FSK
19 November 2009
Meetings/Document
Next Meetings/Conference Calls with FSK
Thursday 8:00PM Eastern (except next week)
Editing process
January 4th for contributions to the TE
Submit proposals and suggestions by December 10th to the OFDM subgroup
Emmanuel Monnerie, Landis+Gyr

10. 19 November 2009
Use cases
Calculate effective throughput (preamble length, packet length versus data/payload size, MAC control,…)
Emmanuel Monnerie, Landis+Gyr