Evaluation of the co-channel interference effects on the performance of coded networks

This paper presents the performance evaluation in terms of bit error rate (BER) of coded networks with high spectral efficiency in the presence of co-channel interference on AWGN channels. The evaluated networks are encoded by trellis coded-modulation (TCM) and by turbo trellis coded-modulation (TTCM) schemes. The effects of co-channel interference is evaluated through Monte Carlo simulation, in scenarios where the system is affected by a dominant interferer that is synchronous to the target user. The results show the requirements of signal-to-interference (S/I) ratio to achieve a good performance, as well as the capacity of coded-modulation to mitigate the co-channel interference.