Hi all
I'm doing the project on USRP, a digital data transmission system. I use
RFX2400 daughterboard. I want to implement something like 802.11b/g system, but
I would like to put all the modulation/demodulation work, error
detection/correction and MAC protocol on FPGA, in order to make the system
independent from PC. I will feed a data stream to the USRP and want to use the
fastest rate possible, and I want the receiver to send only some sort of
acknowledgement for the received packets (cumulative acks may be considered).
The first question is, is it possible to fit such a program on USRP's Cyclone?
As I understand, existing code takes almost all the space on FPGA, but it's
possible to remove unused parts (for ex., I don't need all the channels) and
free some space. Another question is which modulation technique will take least
space while doing the job (i need at least 25 meters range)? And I also wonder
if the multipath propagation will be a big problem? If yes, is there an easy
way to deal with it?
Any help will be appreciated! Thanx in advance for your answer
Andrey Brandis
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