一种新的3发1收准正交空时编码方案  

Novel Method of QO-STBC with Three Antennas

作　　者：李宇[1] 刘伟[1] 

机构地区：[1]河南科技大学电子信息工程学院,河南洛阳471003

出　　处：《电视技术》2013年第15期165-167,共3页Video Engineering

摘　　要：提出了一种新的码率为1的3发1收准正交空时编码方案,通过利用Givens旋转消除检测矩阵中的干扰项。在瑞利衰落信道下仿真分析了所提算法与传统算法的误码率性能。仿真结果表明,所提算法在性能上要优于传统的4发1收QO-STBC方案,并且在低信噪比时,性能要优于传统的码率不为1的3发1收O-STBC算法。A rate one quasi-orthogonal space-time block coding （QO-STBC） algorithm with three antennas is proposed in this paper. The Givens rotation algorithm is used to cancel the channel interference. The bit error rate （BER） performance of the proposed algorithm over Rayleigh fading channel is evaluated. Simulation results show that the proposed scheme gives a more good performance than conventional QO-STBC algorithm with four transmit antennas, and the proposed algorithm shows better performance in low SNR range than conventional 3 × 1 QO-STBC algorithm with rate less than 1.

关 键 词：准正交空时编码 Givens旋转 线性译码 误码率 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]