A PSP-Kalman Receiver for Space-Time Trellis Coded OFDM Systems over Time-Varying Block Fading Channels

Abstract

Space-time trellis coding systems employing orthogonal frequency division multiplexing technique over frequency-selective channels is considered, where fading gains vary within a frame interval. The channel time-evolution of each sub-carrier is modeled by an autoregressive process, while the receiver utilizing a recursive technique combining Kalman filtering with per-survivor processing is studied.