Power allocation method for receiver space modulation system
A space modulation and allocation method technology, applied in the field of multiple input and multiple output technology, can solve problems such as synchronization between antennas, multiple radio frequency links, channel interference, etc., and achieve the effect of large BER performance improvement and excellent performance
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[0042] like figure 1 As shown, this example briefly shows the basic framework of the power allocation-assisted spatial modulation transmission structure at the receiving end. It can be seen that compared with the traditional spatial modulation system model at the receiving end, this model adds a power allocation module at the transmitting end. The limited feedback link is used to adjust the power allocation factor to cope with time-varying channel fading, and this structure can effectively improve the transmission rate of the system.
[0043] This example is a space-modulated MIMO communication system at the receiving end assisted by power allocation of 4 transmissions and 2 receptions. The modulation method is BPSK, and the modulation symbol codebook is S signal ={1-1}, the space symbol codebook is S spatial ={(1,0) T ,(0,1) T}.
[0044] Step 1. Calculate all possible error vectors as:
[0045] w={(2,0) T ,(-2,0) T ,(0,2) T ,(0,-2) T ,(1,1) T ,(1,-1) T ,(-1,-1) T ...
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