Re: [Discuss-gnuradio] OFDM Implementation

[sumitstop]

http://pwnhome.files.wordpress.com/2011/04/simple_transceiver1.png
see carefully....... it has a gmsk modulator in the bottom.u can make the
bottom modulator part in another pc

benchmark programs are quite good to start with...
u can type benchmark_ofdm.py -h to see all the parameters u can play with.


waqasme wrote:
> 
> And sorry to mention in the last mail that i will be suing USRP 1 .
> 
> waqasme wrote:
>> 
>> Hi Sumit,
>> Thank you so much for your quick response. yah i understand what your
>> saying and i am trying to understand this document but it doesnot help
>> much . As you mentioned use the same Tranceiver setup and only replace
>> OFDM blocks with that. My question is in this basic tranciver diagram the
>> used two UHD's source and sink and in the middle they use GMSK
>> Demodulator right. but they didnot use any modulator any where in the
>> design. Now i am confused what blocks i have to replace with OFDM
>> blocks??? Please try to explain in bit detail so i can design it properly
>> . 
>> OR you mentioned other option that use benchmark_OFDM.py file . Somebody
>> already told me about this benchmark file. but its just C++ code . i am
>> quite new to GNU radio and dont know much about the functions how it
>> works. 
>> Please let me know how to use that benchmark_OFDM.py file in order to
>> make the simulation design? do i have to download the file or what? how
>> it works ?? let me know if you know about the process how to compile and
>> run that code in GNU radio.
>> 
>> Thanks for ur help and support really appriciate that...
>> 
>> Regards,
>> 
>> Waqas.
>> 
>> 
>> sumitstop wrote:
>>> 
>>> Try to understand these 
>>> 
>>> http://pwnhome.wordpress.com/2011/04/26/intro-to-gnuradio-and-the-usrp-part-5-simple-transceiver/
>>> 
>>> here u need to put those ofdm blocks .. thats it.... also go through
>>> some modifications as written in umit,
>>> 
>>> 
>>> http://pwnhome.wordpress.com/2011/04/19/intro-to-gnuradio-and-the-usrp-part-4/
>>> 
>>> or else work with benchmark_ofdm.py  its very easy.. :)
>>> 
>>> may i know what daughter boards do you have... 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> waqasme wrote:
>>>> 
>>>> 
>>>> Hello sumit,
>>>> Thanks for your help i went through that document that you refered to,
>>>> and i tried to implement that OFDM transmitter part. This document only
>>>> explain about OFDM flow graph or transmitter. Is there any other
>>>> document or information related to OFDM modulator and demodulator
>>>> (Transceiver)? i haver to implement OFDM transmission and reception via
>>>> USRP. i will really appriciate if you can help me that or someone else
>>>> who knows how to implement by using GNU radio companion.
>>>> Thanks in advance.
>>>> Regards,
>>>> Waq.
>>>> 
>>>> 
>>> 
>>> 
>> 
>> 
> 
> 


-----
Sumit Kr.
Research Assistant
Communication Research center
IIIT Hyderabad
India
-- 
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