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Systems and methods for detecting data in a received multiple-input-multiple-output (MIMO) signal
Systems and methods for detecting data in a received multiple-input-multiple-output (MIMO) signal
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机译:用于检测接收到的多输入多输出(MIMO)信号中的数据的系统和方法
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摘要
Systems and methods for detecting data in a received multiple-input-multiple-output signal are provided. N signals are received from N antennas, with M being greater than or equal to three. The N signals form a vector y and are associated with M sets of data values, where the M sets of data values form a vector x. A channel matrix (H) is estimated, and a QR decomposition of the channel matrix is performed, such that H=QR. The vector y is transformed into a vector z according to z=QHy. The R matrix and the rotated signal vector z are transformed such that one or more elements of the R matrix having complex number values are set equal to zero. Distance values are calculated using the transformed vector z and the vector x. Log likelihood ratio (LLR) values are calculated based on the distance values.
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机译:提供了用于检测所接收的多输入多输出信号中的数据的系统和方法。从N个天线接收N个信号,其中M大于或等于3。 N个信号形成矢量y,并且与M组数据值相关联,其中M组数据值形成矢量x。估计信道矩阵(H),并且执行信道矩阵的QR分解,使得H = QR。向量y根据z = Q H Sup> y变换为向量z。变换R矩阵和旋转信号矢量z,使得具有复数值的R矩阵的一个或多个元素被设置为等于零。使用转换后的向量z和向量x计算距离值。根据距离值计算对数似然比(LLR)值。
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