Low complexity multisymbol differential detection of MDPSK over flat correlated Rayleigh fading channels

Low complexity algorithms for implementing multisymbol differential detection (MSDD) over flat correlated Rayleigh fading channels are proposed, which are extensions of the low complexity MSDD over additive white Gaussian noise channels also proposed by the authors. The complexities of the proposed algorithms increase roughly linearly with block length N while optimum MSDD increases exponentially with N. Simulation results show almost the same performances for practical N