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Near-optimal low-complexity decoding of space-time codes for wireless applications
Near-optimal low-complexity decoding of space-time codes for wireless applications
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机译:无线应用时空码的接近最佳低复杂度解码
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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 eigenvalue of the matrix ΛA(Λ*)T, 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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