Thread Links Date Links
Thread Prev Thread Next Thread Index Date Prev Date Next Date Index

RE: CA analysis between CSS and 11g



Rainer,

	Equations may not be available.  If however, Sheung can track
down some simulation results I would be willing to do some curve fitting
to produce equations.  Then we can document them and they can be used in
the future.

Steve

-----Original Message-----
From: Rainer Hach [mailto:R.Hach@nanotron.com] 
Sent: Friday, May 26, 2006 8:00 AM
To: Sheung Li
Cc: Shellhammer, Steve; pat.kinney@ieee.org; stds-802-19@ieee.org;
Joseph.Levy@interdigital.com
Subject: RE: CA analysis between CSS and 11g

Dear Sheung,
I am looking for equations which give the relationship between Eb/No or
SINR and BER or FER.
I didn't see such when I browsed through the 11g standard, but I might
have missed them. Could you point out where I will find such
information?
Thanks a lot,
Rainer

> -----Original Message-----
> From: Sheung Li [mailto:sheung@atheros.com] 
> Sent: Friday, May 26, 2006 3:54 PM
> To: Rainer Hach
> Cc: sshellha@qualcomm.com; pat.kinney@ieee.org; 
> stds-802-19@ieee.org; Joseph.Levy@interdigital.com
> Subject: RE: CA analysis between CSS and 11g
> 
> 
> Let me know what information you need.  Most of it should 
> be on the IEEE802 CD-ROM.
> 
> The optional 22Mbps rates don't use OFDM, and are not 
> widely supported, so CA analysis isn't required.  You 
> should take a look at the extremes of the mandatory 
> CCK-OFDM rates such as 6Mbps and 54Mbps.
> 
> ==S
> 
> > -----Original Message-----
> >From: Rainer Hach [mailto:R.Hach@nanotron.com]
> > Sent: Fri 5/26/2006 1:18 AM
> > To: Shellhammer, Steve
> > Cc: pat.kinney@ieee.org; Kyung-Kuk Lee;
> >stds-802-19@ieee.org; Sheung Li; 
> >Joseph.Levy@interdigital.com
> > Subject: RE: CA analysis between CSS and 11g
> > 
> > Steve,
> > thank you for your email.
> > Does it mean that there is no 22Mb/s using OFDM?
> > If so, which data rate do you feel is the most relevant
> >to assume for
> > 11g?
> > Also, could you please let me know the email address of 
> >Sheung Li?
> > Best regards,
> > Rainer
> > 
> > 
> >> -----Original Message-----
> >> From: Shellhammer, Steve [mailto:sshellha@qualcomm.com]
> >> Sent: Wednesday, May 24, 2006 8:05 PM
> >> To: Rainer Hach
> >> Cc: pat.kinney@ieee.org; Kyung-Kuk Lee; 
> >>stds-802-19@ieee.org; 
> >> sli@sibeam.com; Joseph.Levy@interdigital.com
> >> Subject: RE: CA analysis between CSS and 11g
> >> 
> >> 
> >> Rainer,
> >> 
> >> 	IEEE 802.11g is primarily based on OFDM.  There is a 22
> >> Mb/s PHY using PBCC.  However, that PHY is optional and 
> >>not 
> >> widely deployed.  So my personal opinion is that 
> >>analysis of 
> >> the 22 Mb/s PHY is probably unnecessary.  However, 
> >> consideration of the OFDM PHY would be very important.
> >> 
> >> 	If you need some more details on the OFDM PHY you might
> >> be able to get some assistance from Sheung Li our 
> >>liaison to 
> >> 802.11.  I believe BER curves should be available.
> >> 
> >> 	Comment to TAG: In general, maybe if we can start to
> >> compile some of this information we can put it in a 
> >>common 
> >> place.  How about the document that Joseph Levy started?
> >> 
> >> Steve
> >> 
> >> -----Original Message-----
> >> From: Rainer Hach [mailto:R.Hach@nanotron.com]
> >> Sent: Wednesday, May 24, 2006 7:09 AM
> >> To: Shellhammer, Steve
> >> Cc: pat.kinney@ieee.org; Kyung-Kuk Lee
> >> Subject: CA analysis between CSS and 11g
> >> 
> >> Steve,
> >> thanks for your all your input in Jacksonville.
> >> Considering 11g with 22MBPS I am looking for a BER or
> >>PER 
> >> equation. One approch could be to figure out how many 
> >>sub 
> >> carriers with which mdoulation and coding are used and 
> >>then 
> >> combine the BERs for each subcarrier. Is that 
> >>appropriate? If 
> >> so, can you help me with the assumptions on subcarriers 
> >>etc. 
> >> out or can you tell me somebody who could possibly do so 
> >>or 
> >> recommend some document besides the standard itself? 
> >>Thanks! 
> >> Best regards, Rainer
> >> 
> >> www.nanotron.com
> >>  
> >> 
> > 
> 
>