Parameter tracking of STE for IS-136 TDMA systems with rapid dispersive fading and co-channel interference

We investigate parameter tracking of spatial-temporal equalization for IS-136 TDMA cellular/PCS systems. We present three parameter tracking algorithms: the diagonal loading minimum mean-square-error algorithm, which uses the diagonal loading to improve tracking ability, the 2-stage tracking algorithm, which uses diagonal loading in combination with a reduced complexity architecture, and the simplified 2-stage tracking algorithm, which further reduces the complexity to one M/spl times/M and one 3/spl times/3 matrix inversion for weight calculation with M antennas.