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Receiving and transmitting end antenna selection method in a space-time block code spatial modulation system

A technology of space-time block code and space modulation, applied in the direction of modulated carrier system, phase-modulated carrier system, transmission system, etc., can solve the problems of restricting future scene applications and excessive complexity, achieve low performance loss and reduce computational complexity Effect

Active Publication Date: 2021-11-26
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0003] However, due to the need to traverse all possible antenna subsets, CNAS may generate excessive complexity in large-scale antenna scenarios, which limits its application in future scenarios

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  • Receiving and transmitting end antenna selection method in a space-time block code spatial modulation system
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  • Receiving and transmitting end antenna selection method in a space-time block code spatial modulation system

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Embodiment Construction

[0037] Below in conjunction with the accompanying drawings and embodiments, the technical solutions of the present invention are described in detail:

[0038] Take the number of transmitting antennas as 5, the number of selected transmit antennas to be 4, the number of receive antennas to be 2, and the number of selected receive antennas to be 1 as an example, assuming that the receiving end can perfectly obtain the state information of the channel For the convenience of explanation, it is assumed that the population size P is 1, and the iteration termination number G is also 1.

[0039] S1. Calculate the modulus value of each component of the channel and square it, and the calculation result is as follows figure 2 shown.

[0040] S2. Generate parent chromosome C, and the gene value on the chromosome is (5,4,2,3,1; 2,1). By sorting by gene value, it can be known that the chromosome corresponding to the transmit antenna subset TX1 is {1, 2, 3, 4}, and the receive antenna su...

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Abstract

The invention belongs to the technical field of wireless communication, and particularly relates to a receiving and transmitting end antenna selection method in a space-time block code spatial modulation system. According to the method provided by the invention, a traditional antenna selection algorithm based on channel norm maximization is improved, a single parent genetic algorithm model is established by taking the channel norm as a fitness function, and a population is forced to grow in a direction with a larger channel norm, so a suboptimal solution or even an optimal solution of the transmit-receive antenna combination is found. Compared with traditional receiving and transmitting end antenna selection based on channel norm maximization, the scheme provided by the invention has the advantages that the search complexity can be greatly reduced under the condition of relatively low performance loss, and exhaustive search is avoided; meanwhile, the scheme can flexibly set algorithm parameters, and has an application prospect in a future large-scale antenna scene.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a method for selecting a transceiver antenna in a space-time block code spatial modulation system; the invention relates to a space-time block code spatial modulation (Space-Time Block Coded Spatial Modulation, STBC-SM) , Antenna Selection (AS), Partheno-Genetic Algorithm (PGA) and other technologies. Background technique [0002] Recently, a new multiple-input multiple-output transmission technology, Space-Time Block Coded Spatial Modulation (STBC-SM), has been proposed. The key idea is to combine the advantages of STBC and SM, while retaining the advantages of STBC. The orthogonal codeword structure makes use of the gain brought by the antenna index of the SM, which makes up for the deficiencies of the data transmission rate of the STBC technology. However, in order to overcome the influence of channel fading, antenna selection technology is introduc...

Claims

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Application Information

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IPC IPC(8): H04L1/06H04L27/20
CPCH04L1/0612H04L1/0618H04L1/0681H04L27/206Y02D30/70
Inventor 陈好肖悦
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA