DSPRelated.com
Forums
The 2025 DSP Online Conference

#OFDM material

Started by LeonardDieguez 3 years ago11 replieslatest reply 3 years ago360 views

I'm trying to find material for design and implementation of ODFM waveform. I know the very basics. I'm not that familiar with, with the receive portion. Examples include detection of the signal, symbol timing, carrier timing/lock, how to use the pilot signals. Looking for implementation examples that could be either in a FPGA or DSP (if possible . I’m looking for material on OFDM , how to receive OFDM signals, achieve symbol timing , carrier lock and anything else that would help me implement a system from scratch. Models and code examples. I material that I have is Bernard Sklar book 3rd ed with Fred Harris. Digital Communications. Some information in there and various papers found on the internet.

Leonard

[ - ]
Reply by SlartibartfastJuly 25, 2022

There are a number of books on OFDM and signal synchronization that cover all of those topics well.  A short search turns up a few candidates.   What you're asking is far more than can be covered usefully in an internet thread.

[ - ]
Reply by LeonardDieguezJuly 25, 2022

yes there are a few books out there. without purchasing them it is hard to make a decision on them. Do you have any of them and any kind of guidelines or notes about them? sudo review? I know it is a big ask. I was not expecting  a full blown explanation on this thread, mainly some pointers on where to look. Thanks

[ - ]
Reply by fharrisJuly 25, 2022

leonard, i can send you matlab script for full 802.11 ofdm modulator and demodulator

need e-mail address


fred

[ - ]
Reply by LeonardDieguezJuly 25, 2022

OK thanks Fred. I'll send you this thread link from my Koliber address, ( you have it already). Just sent the email to your ucsd email

Leonard.

[ - ]
Reply by fharrisJuly 25, 2022

Ok, i'll use it!


fred

[ - ]
Reply by dgshaw6July 25, 2022

Have you tried looking at the code for GNU Radio?

[ - ]
Reply by LeonardDieguezJuly 25, 2022

I have not tried looking at the code on GNU radio. I'm not exactly a "C" person. Mostly workin matlab or python.

[ - ]
Reply by cogwsnJuly 25, 2022

This one is good. https://onlinelibrary.wiley.com/doi/book/10.1002/9...

And the MATLAB code is also available. 

[ - ]
Reply by dgshaw6July 25, 2022

One of the best books I have found recently, is Digital Signal Processing in Modern Communications Systems, by Andreas Schwarzinger.

It is self published and comes at a very reasonable price of about $29.00.

https://www.amazon.com/Digital-Signal-Processing-Communication-Systems/dp/0988873508

It contains lots of MatLab code.

There is now a second edition that is only $38.

[ - ]
Reply by LeonardDieguezJuly 25, 2022

wow, believe it or not, I have it. I must have gotten it a while back but never looked at it that closely. I probably got it on a impulse by when I was getting a different book. I recently got the 2nd ed of the harris book. The cover looked familiar so I looked on my book shelf. (the first edition, not 2nd)


[ - ]
Reply by LeonardDieguezJuly 25, 2022
OK looked at chapter 6 it looks like there is plenty to keep me busy for a bit. Thanks for the tip. It would be nice if the matlab scripts that are in the book were available somewhere in electronic form. My transcribing is usually filled with errors.
The 2025 DSP Online Conference