Finding the time difference between transmitted and received signals for an OFDM system over a Rayleigh/Rician fading channel.

Hello everyone,

I am trying to calculate the total trasmission time taken by signals to travel from a Transmitting end to a Receiving end through a Rayleigh/Rician fading channel.

According to me, i have thought of the below two solutions to proceed with this:

1) Considering the total time in terms of delay spread.

2) Finding the time difference of arrival, as mentioned in few research papers.

I would really appreciate any kind of input on this. Whether going by any of these solutions is the way, or is there a 3rd way to achieve this.

Thanks & Regards,

Rahul

Answer 1

[Rahul Gulia]

Okay so i did my own research. And finally found the solution. Just so as to refer to, if anyone else get the same problem in future.

So to find the time difference, a good approach would be to use Saleh-Valenzuela (S-V) Channel Model. As it gives you time of arrival of each ray and cluster, to be assumed as delay in transmission and reception of signals.

Thank you

Rahul

[Muhammad Osama]

Can you please send the code of time of arrival approach that sir you follow in the project.

[Rahul Gulia]

Please refer to this book for code,

MIMO-OFDM Wireless Communications with MATLAB®

Author(s):

Yong Soo Cho, Jaekwon Kim, Won Young Yang, Chung G. Kang

https://onlinelibrary.wiley.com/doi/book/10.1002/9780470825631

Thank You,

Rahul