QR (quadrature rectangle) decomposition-based low-complexity MIMO (multi-input multi-output) detecting algorithm
A QR decomposition, low-complexity technology, applied in the direction of preventing/detecting errors through diversity reception, space transmit diversity, diversity/multi-antenna systems, etc. The effect of computational complexity
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[0031] The MIMO detection algorithm proposed by the present invention has a bit error rate (Bit Error Rate, BER) performance almost equivalent to that of the MMSE-SIC algorithm and the MMSE-QR algorithm, but the complexity is significantly lower than the other two algorithms. Here, the implementation method of the present case is described in detail by taking multi-user MIMO-OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) receiving end detection as an example.
[0032] Specific embodiments of the present invention will be given below with reference to the accompanying drawings. It should be noted that the parameters in the embodiments do not affect the generality of the present invention.
[0033] like figure 2 As shown, consider the downlink of the TDD LTE-A single-cell system, there is one base station and K users in the cell, and the base station is configured with N t The root transmit antenna, the kth (k=1,...,K) user confi...
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