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Linear transformation of symbols to at least partially compensate for correlation between antennas in space time block coded systems
Linear transformation of symbols to at least partially compensate for correlation between antennas in space time block coded systems
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机译:符号的线性变换,以至少部分补偿空时分组编码系统中天线之间的相关性
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摘要
A method is provided of transmitting signals from two or more antennas in a wireless telecommunications network, in which at least one data sequence is space-time block encoded. Before transmitting the data sequence, a linear transformation is applied to the data sequence, the linear transformation being adapted to use knowledge of correlation among the antennas to at least partially compensate the transmitted signals for said correlation. The linear transformation depends on the eigenvalues of an antenna correlation matrix. The linear transformation further depends on a ratio of symbol energy (Es) to noise variance (2). The method includes transmitting the encoded and transformed data sequence.
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机译:提供了一种从无线电信网络中的两个或更多个天线发送信号的方法,其中至少一个数据序列被时空块编码。在发送数据序列之前,将线性变换应用于数据序列,该线性变换适于利用天线之间的相关性知识来至少部分地补偿所发送的信号的所述相关性。线性变换取决于天线相关矩阵的特征值。线性变换还取决于符号能量(E s Sub>)与噪声方差( 2 Sup>)的比率。该方法包括发送编码和变换后的数据序列。
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