Frequency Offset Influence on MDPSK Signal Reception in Fading Channel

Abstract

The symbol error probability of M-ary differential phase shift keying (MDPSK) receiver, in the presence of carrier frequency offset, is analysed in this paper. The paper proposes a novel multiple symbol differential detection (MSDD) receiver. The influence of various receiver’s parameters on the error probability is analysed. The theoretical symbol error probability is derived and compared to the Monte-Carlo simulation results, for an AWGN channel. The analysis shows a good agreement between the theoretical and simulation results. The influence of the frequency offset in the Rician fading channel, using Monte-Carlo simulation, is also considered for the same receiver’s parameters as in the AWGN channel. Simulation results show good system performances in the case of Rician fading channel, also.

Keywords

• Adaptive signal processing; Differential phase shift keying; Frequency offset; Multiple-symbol differential detection
• Rician fading channel