A fast mimo signal search method, system, device and storage medium
A search method and signal technology, applied in transmission systems, neural learning methods, radio transmission systems, etc., can solve problems such as the impact of search efficiency, and achieve the effects of reducing average complexity, improving efficiency, and good adaptability
Active Publication Date: 2022-05-24
GUANGZHOU UNIVERSITY
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[0002] The multiple-input multiple-output (MIMO) communication system has the advantages of space diversity and can effectively meet the high data volume requirements of the next generation communication network. In order to support a larger system transmission capacity, the massive MIMO system has been called the future wireless network system In the massive MIMO system, the complexity of optimal detection increases exponentially with the size of the modulation constellation and the number of transmission antennas. With the increase of detection complexity, the existing shortest path search algorithm The search efficiency of the optimal detection technique will be seriously affected, which makes the optimal signal detection problem under massive MIMO face a huge challenge
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[0051] The embodiments of the present invention will be explained in detail below in conjunction with the accompanying drawings. The examples are given only for the purpose of illustration and should not be construed as a limitation of the present invention. The accompanying drawings are only used for reference and description, and do not constitute a limitation on the protection scope of the patent of the present invention. limitation, since many changes may be made in the present invention without departing from the spirit and scope of the invention.
[0052] see figure 1 , figure 1 This is a schematic flowchart of a fast MIMO signal search method provided by an embodiment of the present invention, and the method includes:
[0053]S1. Acquire a received signal, and construct a decision tree according to the channel matrix of the received signal.
[0054] In this embodiment, a received signal is obtained at the signal receiving end, and the received signal is specifically: ...
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The present invention relates to the technical field of wireless communication, and in particular to a fast MIMO signal search method, system, device and storage medium, comprising: obtaining a received signal, and constructing a decision tree according to the channel matrix of the received signal; Layer search, in the search of each layer, input the node vector of the layer tree node into the deep neural network to obtain the heuristic value of the corresponding tree node; input the heuristic value into the cost model to obtain the cost value of the corresponding tree node; The cost value is searched, and the tree node with the smallest cost value in the last layer is used as the detection result of the real signal to be recovered. The invention not only improves the efficiency of the shortest path search algorithm by combining the neural network with the search algorithm, but also effectively reduces its average complexity under the massive MIMO system.
Description
technical field [0001] The present invention relates to the technical field of wireless communication, and in particular, to a deep learning-based fast MIMO signal search method, system, device and storage medium. Background technique [0002] Multiple-input multiple-output (MIMO) communication systems have the advantage of spatial diversity and can effectively meet the demand for high data volume in next-generation communication networks. In order to support larger system transmission capacity, massive MIMO systems have been called future wireless network systems. In a massive MIMO system, the complexity of optimal detection increases exponentially with the size of the modulation constellation and the number of transmission antennas. The search efficiency of the optimal detection technology will be seriously affected, which makes the optimal signal detection problem under massive MIMO face a huge challenge. Therefore, how to effectively speed up the search efficiency of th...
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IPC IPC(8): H04B7/0413H04B7/08G06N3/04G06N3/08
CPCH04B7/0413H04B7/0822G06N3/08G06N3/045
Inventor 范立生夏隽娟何科汪洋涛刘外喜
Owner GUANGZHOU UNIVERSITY