Layered space time coding with joint iterative detection, channel estimation and decoding

Layered space time (LST) coding has been shown to achieve very high spectral efficiency in a flat fading environment. The capacity grows linearly with the lesser of the number of transmit and receive antennas. We show a performance analysis of the LST system in the presence of channel estimation errors. We conclude that the performance of LST is dominated by the minimum squared Euclidean distance of the component code. Furthermore, an iterative detection, channel estimation and decoding algorithm is proposed. Simulation results are presented to demonstrate the performance of this receiver. It shows that the performance of the iterative channel estimation receiver significantly outperforms the non-iterative approach.