MQAM/TCM System on The Rayleigh Fading Channel

摘要

In this paper, the performance of QAM system base on Pilot Symbol-Aided (PSA) technique is analysed, and a trellis coded MQAM scheme with PSA is introduced for improving the system's capability to resist fading.The BER performance of this scheme in the Rayleigh flat fading channel corrupted by AWGN is investigated through computer simulations. The results show that in fading channel , this scheme would achieve a significant improvement compared with the uncoded PSK as well as QAM.