Further results on diagonal-layered space-time architecture

In this paper, we present a simple diagonal-layered space-time coding scheme for Bell-Labs Layered Space-Time (BLAST) architecture that uses block forward error correction coding (FEC) and diagonal layering space-time interleaver. The proposed diagonal inter-substream coding also facilitates the use of an iterative parallel soft-interference cancellation receiver for decoding the simultaneously transmitted data. The paper includes a simple development of the proposed algorithm and illustration of its properties using simulation results. In particular, we show that by using the proposed simplified D-BLAST architecture and iterative receiver, a power gain of about 6dB can be achieved over traditional sequential detection schemes.