[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Discuss-gnuradio] Packet Loss Rate/Bit Error Rate
From: |
kaleem ahmad |
Subject: |
Re: [Discuss-gnuradio] Packet Loss Rate/Bit Error Rate |
Date: |
Fri, 25 Jul 2008 09:45:55 -0700 (PDT) |
I am using RFX2400 daughter boards,
VERT2450 antenna which I received with my USRP from ettus,
I have tried different bitrates from 40kbps - 100kbps but got same results,
I am not observing any overrun or underrun,
I am working in office environment where I dont have any interference
(almost),
Gain = 0, but I have tried other values [0-20].
Thanks
George Nychis wrote:
>
>
>
> kaleem ahmad wrote:
>> If someone has ever measured Quality of service of received data (using
>> any
>> modulation and daughter board but preferably RFX2400) in terms of packet
>> loss rate/Bit Error Rate (or any other metric) with USRP & GNU Radio
>> without
>> any error correction (ARQ,FEC) mechanism (but no problem if you have with
>> error correction mechnism) then please share your results here.
>>
>> Actually without and error correction mechanism, with FSK, I am getting
>> almost half of my data lost. I was thinking that it may be improved by
>> adding some error correction mechanism. Or this high data loss is because
>> of
>> some implementation errors...What do you say ??????????
>>
>
> We have no idea what your actual setup is, so we have no clue whether or
> not error correction will truly help you.
>
> It's like saying my computer crashed, and asking if a new hard drive
> will help. Who knows, it all depends :)
>
> Some questions that might help:
> - are you using coax?
> - are you using antennas?
> - what kind of gain are you using?
> - what kind of physical conditions?
> - what bitrate are you using?
> - are you seeing underruns at your receiver?
>
> - George
>
>
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
>
--
View this message in context:
http://www.nabble.com/Packet-Loss-Rate-Bit-Error-Rate-tp18654524p18655506.html
Sent from the GnuRadio mailing list archive at Nabble.com.