On Sat, Aug 6, 2011 at 3:54 PM, Marcus D. Leech <mleech@ripnet.com> wrote:
On 08/06/2011 06:27 PM, shantharam balasubramanian wrote:Well, in real-world radio communications systems, low-SNR *does* cause packet loss. That's entirely expected. Nature doesn't discriminateHi
I have been working in usrp2 testbed, and I have been modifying the benchmark_tx and rx programs for my project. There have been situations where I was supposed to introduce noise to find out BER. I did that by giving lower transmitter amplitude values. But very low values cause packet loss along with higher BER values. I just want to know if there Is there anyway to just cause high BER values, without causing packet loss? Is there any way I can do that inside the program or should I do it by any other way e.g.by using some noise producing source?
between packet-synchronization data, and the actual payload data.
-- Marcus Leech Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org
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Perhaps he could design a long preamble sequence, many symbols, and use that to correlate against. That way you can assure packet lock, but symbol decoding might not always work.
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