Simulation of multipath fading channel

[shameem]

simulation of multipath mimo channel coefficient

Hi,
I want to simulate a multipath fading channel for mimo-ofdm system. I have a scenario like
No. of Tx antennas: 2
No. of Rx antennas: 2
No. of delay paths: 6
dopler spread: 8 hz
We can assume the phase of delayed signals any arbitrary angle.
Now how to calculate the channel coefficints??

If anybody have a piece of matlab code or any good doc, please share.

thanks,
Shameem

 

[senaydud]

I dont know whether it helps but,, well,, as long as it is a 2x2 MIMO channel then it means there exists 4 SISO channels. As long as you assume that they are independent of each other (due to lambda/2 antenna spacing) all you need to do is to create 4 SISO channel models independent of each other. If you are using Matlab, go to help file and read how to define a SISO "rayleigh" channel model with doppler and path delays... Well,, sorry this answer might have been a bit simple or useless if you may already know these.

 

[m_pourfathi]

Channel coefficients describe the physical situation of a channel. You have define them by knowing the environment you are using as your wireless channel. There different standard channel models like saleh-venezuela etc. you may refer to these models and use these coefficients.

 

[shameem]

Actually i am interested in finding the practical method of calculating channel coefficients.

thanks for the suggestion guys!