I am trying to simulate a simple communication system using channel estimation. I was able to estimate the channel response using the Least Squares channel estimator, and it is working properly (evaluated by the mean square error between the channel and its estimation). But once I have this knowledge, I need to equalize the signal at the receiver. I have tried to apply the zero-forcing method, but it's not providing a good performance.
My questions are:
- What is the proper way of doing this equalization?
- In a system where two transmitters send information at the same time and in the same frequency, I can estimate both channels at the receiver, but how can I equalize the signal once I know both channels?
- Is there is any reference that anyone could indicate to read more about this topic and help answer these questions? It wold be enough for now.
Thanks in advance.