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Near-optimal low-complexity decoding of space-time codes for fixed wireless applications
Near-optimal low-complexity decoding of space-time codes for fixed wireless applications
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机译:固定无线应用的时空码近乎最佳的低复杂度解码
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摘要
An improved multi-antenna receiver is realized for detecting signals transmitted by a multi-antenna transmitter by summing signals received at the plurality of receiver antennas after multiplying each by a respective constant. The summed signal is applied to a maximum likelihood detector. The respective constants, λj, where j is an index designating a particular receiver antenna, are determined by evaluating the largest eigenvector of the matrix A, where Λ is a vector containing the values λj, and A is a matrix containing elements αij, which is the transfer function between the ith transmitter antenna to the jth receiver antenna. The αij terms are determined in the receiver in conventional ways.
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机译:实现了一种改进的多天线接收机,用于通过将在多个接收机天线处接收到的信号乘以各自的常数后相加来检测由多天线发射机发送的信号。求和后的信号被施加到最大似然检测器。通过评估矩阵A的最大特征向量来确定各个常数λ j Sub>,其中j是指定特定接收机天线的索引,其中Λ是包含值λ j的向量 Sub>,并且A是包含元素α ij Sub>的矩阵,它是第i 个 Sup>发射机天线到第j Sup个天线之间的传递函数>接收天线。 α ij Sub>项在接收器中以常规方式确定。
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