Particle Filter with Hybrid Importance Function for Joint Symbol Detection and Phase Tracking
François Septier, Yves Delignon, Atika Menhaj-Rivenq, Christelle Garnier · 2006
In digital communication, phase distortions introduced by local oscillators is one of the major concerns in designing low-cost high frequency wireless communication systems. Hence, for phase tracking and symbol detection, we propose an original algorithm which performs both phase tracking and symbol detection by a particle filtering based on the hybrid importance function. Performances of this algorithm are analyzed and compared to phase-locked loop performances in terms of bit error rate and mean square error. Asymptotic posterior Cramer-Rao bound is also derived to show performances of the optimum receiver