Re: [Discuss-gnuradio] high-level OFDM question

2010-02-12 Thread Achilleas Anastasopoulos
Tom, thanks for the info. So to clarify, the frame length is fixed for the transmission to a certain number (say 400 bytes) so the system waits until it collects 400 bytes worth of data and then it generates and transmits it using a burst of 1 training and 16 data OFDM symbols. If the number o

Re: [Discuss-gnuradio] high-level OFDM question

2010-02-12 Thread Tom Rondeau
On Fri, Feb 12, 2010 at 10:34 AM, Achilleas Anastasopoulos wrote: > Hi there, > > before delving into the details of the OFDM implementation in GNURAdio I > wanted to ask a high-level question: > > What is the method used for initial timing/frequency acquisition? We use, by default, the standard

[Discuss-gnuradio] high-level OFDM question

2010-02-12 Thread Achilleas Anastasopoulos
Hi there, before delving into the details of the OFDM implementation in GNURAdio I wanted to ask a high-level question: What is the method used for initial timing/frequency acquisition? Is there one or two training OFDM symbols that precede the transmission of data? and how many OFDM data sym