Enhancement signal multiplexing technique of multiple-input multiple-output system based on compressive sensing
A technology of compressed sensing and multiplexing technology, which is applied in the field of signal multiplexing matrix design and signal detection, to achieve small modification, improve signal multiplexing gain, and meet application requirements
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[0042] The specific implementation steps of the present invention will be described in detail below in conjunction with the MIMO system.
[0043] We first consider the case of single-user MIMO. Traditional single-user spatial multiplexing MIMO systems such as figure 1 As shown, the coded and modulated sender signal x=[x 1 , x 2 ,...,x M ] T After being processed by the spatial multiplexing module SpatialMultiplexing at the sending end t The root transmitting antennas send out at the same time, where M=min{N t , N r}. After being processed by the spatial demultiplexing module SpatialDemultiplexing at the receiving end, from N r The signal received by the root receiving antenna is detected and restored to obtain the signal at the sending end x ^ = [ x ^ 1 , x ...
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