Frequency division multiplexing multi-user MIMO energy efficiency optimization method
A technology of frequency division multiplexing and optimization method, which can be used in frequency division multiplexing selection devices, diversity/multi-antenna systems, and energy reduction, etc., and can solve problems such as consuming ground-state power.
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[0051] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.
[0052] figure 1 and figure 2 To introduce the flow chart of the algorithm of the present invention. Figure 3 to Figure 8 It will involve the comparison of three schemes: optimal solution, scheme one and scheme two. Solution 1: Each user distributes power evenly, and each channel distributes power evenly; Solution 2: Each user distributes power evenly, but each user uses a pre-optimized function to allocate power.
[0053] The specific implementation steps are as follows:
[0054] 1) Noise whitening and precoding matrix swapping:
[0055] The channel noise whitening is performed according to the following formula, and the equivalent whitening channel matrix of all users is obtained:
[0056] H ~ i = R i ...
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