Performance analysis of direct sequence differential phase shift keying (DS-DPSK) with self-normalization and L-fold diversity in a fading channel

The performance of a direct sequence differential phase shift keying (DS-DPSK) spread spectrum system employing time diversity and self-normalization over a Rician frequency nonselective, slowly fading channel in the presence of pulsed noise interference and additive white Gaussian noise (AWGN) is considered. An interference model which considers the possibility that either both, one or none of the information bits experience jamming is employed. Worst case performance under severe and moderate fading conditions are analyzed. Results indicate that the self-normalized receiver is effective in mitigating the effects of pulse noise jamming for all fading conditions considered.