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首页> 外文会议>IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications vol.2; 20050808-12; Beijing(CN) >Alamouti Transmit Diversity Scheme with A Simple Diagonal Weighting Matrix
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Alamouti Transmit Diversity Scheme with A Simple Diagonal Weighting Matrix

机译：具有简单对角线加权矩阵的Alamouti发送分集方案

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摘要

In this paper, a novel scenario of the Alamouti's space-time block code (STBC) system combined with a simple diagonal weighting matrix is presented. The diagonal weighting matrix is performed at the transmitter, dependent on the channel state information (CSI) which is obtained by using a feedback link. The signal can be decoded by updating the channel gain which was changed due to the weighting effect at each of two transmitters based on feedback information. The BER performance analysis about the decoded signal using the above scheme was derived theoretically and was shown to be better 1.3dB than the Almouti's STBC transmit diversity with open loop scheme.
机译：本文提出了结合简单对角线加权矩阵的Alamouti时空分组码（STBC）系统的新方案。对角线加权矩阵是在发射机处执行的，具体取决于通过使用反馈链路获得的信道状态信息（CSI）。可以通过基于反馈信息更新由于在两个发射机中的每一个处的加权效应而改变的信道增益来对信号进行解码。理论上推导了使用上述方案对解码信号进行的BER性能分析，结果表明，与采用开环方案的Almouti的STBC发射分集相比，该性能要好1.3dB。

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