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Spatial modulation and detection method with low complexity

A technology of spatial modulation and detection method, applied in digital transmission systems, electrical components, error prevention, etc., can solve the problems of high complexity, difficulty in implementation, and high detection complexity, and achieve the effect of reducing detection complexity

Inactive Publication Date: 2015-02-04
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

However, the detection complexity of the traditional spatial modulation system is still high, especially when the number of transmitting antennas is large, the complexity is often high, and it is difficult to realize

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  • Spatial modulation and detection method with low complexity
  • Spatial modulation and detection method with low complexity
  • Spatial modulation and detection method with low complexity

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Embodiment Construction

[0017] The technical solution of the present invention will be described in detail below in combination with the embodiments and the accompanying drawings.

[0018] 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.

[0019] Spatial modulation: eg figure 1 , b is the bit data that needs to be transmitted, and can be regarded as a matrix of L×T, wherein L=log2(M)+log2(Mary) is the number of bits carried by an SM modulation symbol, and Mary is the quadrature amplitude modulation ( Quadrature Amplitude Modulation, QAM) order. It can be seen that the number of bits that can be carried by one SM modulation symbol is jointly determined by the QAM modulation order and the number of transmit antennas. The SM modulation criterion is to convert b into an M×T matrix x according to the SM conversion table. In x, one column represents the...

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Abstract

The invention relates to the field of communication anti-jamming technologies, in particular to spatial modulation (Spatial Modulation, SM) technologies, signal vector detection algorithms (Signal Vector Detection, SVD), hard-limiter maximum-likelihood detection algorithms (Hard-Limiter Maximum-Likelihood Detection, HL-ML Detection) and related multiple input multiple output (Multiple Input Multiple Output, MIMO) technologies. By adopting a spatial modulation and detection method with low complexity, through arranging a reasonable threshold, the signal vector detection algorithm and the hard-limiter maximum-likelihood detection algorithm are combined, and the complexity for detection is greatly reduced under the condition that the BER (Basic Error Rate) performance obtained through detection is extremely close to optimal algorithm ML detection.

Description

technical field [0001] The present invention relates to the technical field of communication anti-interference, in particular to spatial modulation (Spatial Modulation, SM) technology, signal vector detection algorithm (Signal Vector Detection, SVD), hard demodulation maximum likelihood detection algorithm (Hard-Limiter Maximum-Likelihood Detection, HL -ML Detection) and related multiple input multiple output (Multiple Input Multiple Output, MIMO) and other technologies. Background technique [0002] MIMO modulation technology is a high-speed transmission technology in a wireless environment. It configures more antenna units at the transmitting end and / or receiving end, and combines advanced space-time coding modulation schemes. By making full use of the degree of freedom of space, it can Brings additional diversity, multiplexing and beamforming gains. [0003] Recently, SM technology has been proposed as a new modulation technique as a new MIMO modulation scheme. The basi...

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Application Information

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IPC IPC(8): H04L1/00
CPCH04L1/0612
Inventor 王顺顺王宇肖悦王兆瑞尹露李少谦
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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