Re: [Discuss-gnuradio] BBN's 802.11b code

2008-06-26 Thread Daniel Sumorok
Hi Sri, The time synchronization (i.e. bit timing) is done by the bbn.slicer_cc module. There is no real phase or frequency synchronization, because the demodulator uses a differential demodulation technique. I don't have any text book reference, but the time synchronization basically passe

[Discuss-gnuradio] BBN's 802.11b code

2008-06-26 Thread sri ram
Hello all, I am trying to understand the BBN code for 802.11b. I must state upfront that I am not an expert in communication systems. 802.11b uses dBPSK and dQPSK modulations for its 1Mbps and 2Mbps rates. I explored how a dBPSK module looks like and I am able to make sense of the code in g