Re: [Aironet] Re : Aironets power & sensitivity

[Gavin D H. <gho...@cs...>]

Thanks Jean-Pierre,

If I find out anything on CCK or OFDM, I'll post it.

-Gavin


>Gavin D Holland wrote:
>> 
>> On a slightly different note, does anyone know of a good reference
>> for calculating theoretical (BER / Eb/No) curves for the modulation
>> formats and rates used in 802.11 (DBPSK, DQPSK), 802.11b (CCK), and
>> 802.11a (OFDM w/(BPSK, QPSK, 16-QAM, 64-QAM)).
>> 
>> -Gavin
>Hi Gavin, 
>
>I can help for the DBPSK and DQPSK modulation:
>
>See section II in my following paper:
>http://www-tkn.ee.tu-berlin.de/bibl/ours/momuc99.ps.gz
>To compute the BER(Eb/No) for a AWGN channel use the formula:
>
>BER= 1/2 * e^(-Eb/No) (Difference PSK: There is no difference for DBPSK
>and DQPSK.
>This is the standard formula, unfortunately I have no english reference
>by hand. Try the 
>communication theory bible from John Proakis, it should be in there.
>
>I can not help (at the moment) for CCK and the OFDM stuff. In particular
>OFDM seems to be really complex.
>If there is somebody in the mailing list who could help here (perhaps
>someone from Aironet), 
>I would very appreciate help or a pointer to literature to derivate the
>equation.
>
>I also try to solve that by my own with some help from the my
>communication theory colleages.
>Let you know what I have as soon it is available.
>
>JP
>