中文摘要：

该文使用高斯近似算法,推导相关Nakagami-m衰落信道上采用最大比合并分集接收的低密度奇偶校验码的误比特率闭合表达式。基于离散密度进化算法,计算低密度奇偶校验码无误译码时的信噪比门限值。仿真结果表明高斯近似能够较好的估计相关Nakagami-m衰落信道上低密度奇偶校验码的性能。

英文摘要：

Using Gaussian approximation（GA） approach,this paper derives the closed-form BER expression of LDPC codes with MRC in correlated Nakagami-m fading channels.The signal-to-noise thresholds for error-free decoding are obtained using discretized density evolution（DE）.Simulations results show that GA results provide a good estimate for the performance of LDPC codes in correlated Nakagami-m fading channels.