I have implemented OFDM system that has one receiver and two
transmitters. Receiver can receive signals correctly, when one of the
transmitters is active. However, when both of them are active, receiver
cannot receive all the packets. They are interfering each other.
To overcome this situation, i tried to allocate different carriers to
transmitters. For example; in 256 carriers OFDM system, 1 to 120 is for
transmitter 1 and -120 to -1 is for transmitter 2. In this situation,
receiver cannot still receive entire packets, when both of them are active.
At the end, i decided to give some gap between transmitters. So, 36 to
90 and -36 to -90 are assigned to transmitters. But, result is same. I
have attached two pictures of spectrum. They represents state of one and
two transmitters are active. You can check the situation from there.
So, can you suggest a way to receive from two transmitters without
interference?
Best regards.
Ramazan
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