# Implementation of ofdm

**URL:** <https://www.ruby-forum.com/t/implementation-of-ofdm/240814>\
**Category:** GNU Radio\
**Created:** [May 1, 2014, 5:08pm UTC](https://www.ruby-forum.com/t/implementation-of-ofdm/240814 "2014-05-01T17:08:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![musicdenotation](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ea666f/32.png) [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\
**Post date:** [May 1, 2014, 5:08pm UTC](https://www.ruby-forum.com/t/implementation-of-ofdm/240814/1 "2014-05-01T17:08:53Z")

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hai im anjana doing mtech in amrita vishwavidya  
peetham.ettimadai,coimbatore,tamilnadu,india.

sir, im trying to do ofdm communication system including channel  
estimation and synchronization. im having a doubt about the paramaters  
of the following blocks used for the simulation of ofdm modulation  
and demodulation(with out directly using ofdm mod and ofdm demod  
blocks)

1. ofdm carrier allocator
2. fft  
3.cyclic prefix  
4.channel model  
5.channel estimation  
6.equilizer  
7.serializer

could you please explain the parameters of each of this block with an  
example.

thankyou.

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**Author:** ![Anjana\_C](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7feea3/32.png) [@Anjana\_C](https://www.ruby-forum.com/u/Anjana_C)\
**Post date:** [May 1, 2014, 8:54pm UTC](https://www.ruby-forum.com/t/implementation-of-ofdm/240814/2 "2014-05-01T20:54:38Z")

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On 05/01/2014 05:02 PM, Anjana C wrote:

> 1. fft  
> 3.cyclic prefix  
> 4.channel model  
> 5.channel estimation  
> 6.equilizer  
> 7.serializer
> 
> could you please explain the parameters of each of this block with an example.

You can find examples in gr-digital/examples/ofdm.

For 1. and 7. consult the manual, for the rest any textbook on OFDM.

Martin