中文摘要：

从信噪比（SNR）观点对脉冲噪声环境下衰落信道中正交空时分组码（OSTBC）的理论误符号率（SER）进行了分析。基于STBC引入的标量等效矩阵,给出了STBC解码后每符号瞬时SNR的概率密度函数。假设信道为准静态平坦衰落,并将信道干扰噪声建模为ε-高斯混合分布。推导了Rayleigh、Rician及Nakagami-m三种衰落信道下采用MPSK和MQAM调制方式的OSTBCSER闭式表达式。该闭式解可以用于评估脉冲噪声环境中OSTBC的性能。此外,进行了蒙特卡洛仿真验证了分析的正确性。

英文摘要：

The theoretical symbol error rate （SER） of orthogonal space-time block coding （OSTBC） over fading channels with impulsive noise was analyzed from a signal-to-noise ratio （SNR） perspective, Based on the equivalent scalar channel induced by STBC, the probability density functions （pdf） of the instantaneous SNR per symbol after STBC decoding were given for various fading channels. The quasitatic assumption was made for the fiat fading channels which were corrupted by impulsive noise modeled as an e-mixture Gaussian distribution. The closed-form expressions for the average SER of OSTBC over Rayleigh, Rician and Nakagami-m fading channels were derived for MPSK and MQAM modulations. These results enabled one to evaluate the performance of OSTBC in impulsive noise environment. In addition, Monte Carlo simulations were performed to corroborate the analysis.