Performance of skewed phase shift keying

Abstract

This paper analyzes the performance of transmitting pulse code modulation samples using skewed phase shift keying. Both theoretical and simulation results are presented which are found to corroborate well. Optimal skewing angles are obtained for various quantizer resolutions for both the Gaussian channel and for Rician fading channels. The source-matched digital transmission schemes considered in this paper have possible applications in a subclass of wireless personal communication systems where low delay is an important requirement. This implies operating at relatively high channel signal-to-noise ratios without or with limited channel coding and interleaving.