Re: [Discuss-gnuradio] Lost packet problem

2010-02-20 Thread abbasi9999
I think the problem was the high bit rate. my bit rate was 100K when i decrease it to 10K the lost packets can be recovered safely. I think that there is overflowing in the USRP, which cause the missing of access code. therefore i miss the packets. I'll try what you have said in the first post. t

Re: [Discuss-gnuradio] Lost packet problem

2010-02-19 Thread Tom Rondeau
On Fri, Feb 19, 2010 at 12:50 AM, abbasi wrote: > > Thanks a lot for your reply, > sorry for my bad english... > > > Tom Rondeau wrote: >> >> >> Which modulation are you using? Are you using the >> digita/benchmark_*.py files or is this OFDM. I'm not quite getting >> what you mean when you're

Re: [Discuss-gnuradio] Lost packet problem

2010-02-18 Thread abbasi9999
Thanks a lot for your reply, sorry for my bad english... Tom Rondeau wrote: > > > Which modulation are you using? Are you using the > digita/benchmark_*.py files or is this OFDM. I'm not quite getting > what you mean when you're talking about the PN code (which makes it > sound like the OFDM c

Re: [Discuss-gnuradio] Lost packet problem

2010-02-18 Thread Tom Rondeau
On Thu, Feb 18, 2010 at 8:25 AM, abbasi wrote: > > I'm facing a problem, when the packet is lost in the channel. > > I've tried to create my own program with multiple ACKs between transmitter > and receiver (both of them works as transceiver) to retransmit the lost > packets. However i faced s

[Discuss-gnuradio] Lost packet problem

2010-02-18 Thread abbasi9999
I'm facing a problem, when the packet is lost in the channel. I've tried to create my own program with multiple ACKs between transmitter and receiver (both of them works as transceiver) to retransmit the lost packets. However i faced some problems: 1. the CRC32 cannot recognize the error packets