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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: 2015-12-16
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

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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 SM in each time slot, 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 field of communication anti-jamming technologies, relates to a spatial modulation technology, and particularly relates to a low-complexity large-scale antenna selection method based on spatial modulation so as to be used for solving a problem that the complexity is too high in performance optimal antenna selection in an MIMO (multiple input multiple output) system with the antenna scale being large. According to the invention, subset partition is carried out on an antenna set, antenna selection is carried out in each subset, and traversal search for constellation points and transmitting vector universal set is avoided. Meanwhile, weights of an included angle and the 2-norm of a vector are used to act as a measurement standard for selection, the performance is obviously better than that of a capacity maximization antenna selection method which purely considers the 2-norm, and good compromise between performance and complexity is acquired.

Description

technical field [0001] The invention belongs to the technical field of communication anti-jamming, and relates to spatial modulation (SpatialModulation, SM) technology, transmission antenna selection of angle and norm method, MIMO (MultipleInputMultipleOutput) and other technologies, in particular to a low-complexity based on spatial modulation Large-Scale Antenna Selection Methods. 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 the traditional MIMO...

Claims

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Application Information

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IPC IPC(8): H04B7/06H04B7/04
CPCH04B7/0413H04B7/0608
Inventor 尹露王宇肖悦李少谦
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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