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A Low-Complexity Large-Scale Antenna Selection Method

A large-scale antenna, low-complexity technology, applied in diversity/multi-antenna systems, radio transmission systems, space transmit diversity, etc. Effect

Inactive Publication Date: 2018-02-13
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a low-complexity large-scale antenna selection method based on an SM modulation system to solve the problem of excessively high complexity of antenna selection in a space-modulated MIMO system with a large antenna scale

Method used

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Embodiment Construction

[0024] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings, so that those skilled in the art can better understand the present invention. It should be noted that in the following description, when detailed descriptions of known functions and designs may dilute the main content of the present invention, these descriptions will be omitted here.

[0025] In order to describe the present invention better, the terms used in the technical solution of the present invention and the transmitter structure of the spatial modulation system are introduced first.

[0026] Spatial modulation: eg figure 1 As shown, s is the bit data to be transmitted, which can be regarded as a matrix of L×T dimension, where L=(log 2 M+log 2 N t )bit / s / Hz, is the number of bits transmitted by each time slot of SM, and M is the order of Quadrature Amplitude Modulation (QAM). It is not difficult to see that the number of bits that a space modula...

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Abstract

The invention belongs to the technical field of communication anti-jamming, and relates to space modulation technology, specifically, a low-complexity large-scale antenna selection method based on space modulation, which is used to solve the optimal antenna performance in a space modulation MIMO system with a large antenna scale Choose a problem that is too complex. The present invention divides the antenna set into subsets, and selects antennas in each subset, avoiding the traversal search of the constellation points and the complete set of transmission vectors, and using the weight of the included angle and the 2-norm of the vector as the selection criterion , the performance is significantly better than the capacity-maximizing antenna selection method simply considering the 2‑norm, and a good compromise has been achieved between performance and complexity.

Description

technical field [0001] The invention belongs to the technical field of communication anti-jamming, and relates to spatial modulation (Spatial Modulation, SM) technology, the transmission antenna selection of the included angle and norm method, MIMO (Multiple Input Multiple Output) and other technologies, in particular to a spatial modulation based A low-complexity large-scale antenna selection method. Background technique [0002] SM technology is proposed as a new modulation technique as a new MIMO modulation scheme. The basic principle of this technology is to transmit information bit information by activating different antennas and using the antenna index value for modulation. The essence of this transmission scheme is to exploit the independence of different channels in a MIMO system. Because only one antenna is activated in each time slot, it can effectively avoid the problems of inter-channel interference and channel synchronization between transmitting antennas in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06H04B7/0413
CPCH04B7/0413H04B7/0608
Inventor 尹露王宇肖悦李少谦
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA