Performance and implementation of a FPGA-based cross polar interference canceller

Radio transmission on V and H polarizations is a well known technique to double channel capacity in point-to-point microwave radio systems. Due to non-ideal separation between the two polarizations, co-channel interference arises and must be dealt with at the receive side. Here we report the results of a FPGA-based coded modulation system that employs interference cancellation. The results show that the performance of the implemented system is close to the computed one and meets ETSI specifications with large margin.