Performance of LDPC code based D-BLAST system

In this paper, we derive a close form of symbol error probability of low density parity check (LDPC) code based diagonal Bell laboratories layered space-time (D-BLAST) system over independent fading channel, especially for low SNR case. To derive the expression, we use Craig´s Q-function and moment generating function, which results in simple expression. This resulting expression is functions of weight distribution of LDPC code. Our approach is also applicable to any block coded space-time code with long blocklength.