LOW-COMPLEXITY MULTISYMBOL DIFFERENTIAL DETECTION OF MDPSK OVER FLAT CORRELATED RAYLEIGH FADING CHANNELS

Low complexity algorithms for implementing multisymbol differential de tection (MSDD) over flat correlated Rayleigh fading channels are propo sed, which are extensions of the low complexity MSDD over additive whi te Gaussian noise channels also proposed by the authors. The complexit ies of the proposed algorithms increase roughly linearly with block le ngth N while optimum MSDD increases exponentially with N. Simulation r esults show almost the same performances for practical N.