Performance of LDPC Code Based D-BLAST System

Abstract

In this paper, we derive a closed form of symbol error probability of low density parity check (LDPC) code based diagonal Bell laboratories layered space-time (DBLAST) 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 result in simple expression. This resulting expression is a function of weight distribution of LDPC code. Our approach is also applicable to any block coded space-time code with long block length.