SOLVING THE TWO-ANTENNA PROBLEM USING SPACE-TIME CODED PCM/FM

This article describes a space-time block code for PCM/FM to address the two-antenna problem. The space-time block encoder is described using bit-level operations on the input data stream. The space-time decoder combines coherent combining and maximum likelihood sequence estimation to produce an estimate of the data sequence. Simulation results for zero differential delay at the most difficult boundary cases produced by dual-antenna transmission show no bit error rate loss relative to the additive white Gaussian noise case.