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Multi-user cooperative space modulation method

A technology of multi-user cooperation and spatial modulation, applied in the field of wireless communication physical layer, can solve the problems that are not conducive to effective communication, increase the space gain, and increase the complexity of receiving and demodulating at the destination, so as to reduce hardware configuration and increase cooperation gain , the effect of reducing interference

Inactive Publication Date: 2016-04-20
TIANJIN UNIV
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Problems solved by technology

Gradually increasing the number of antennas, while increasing the space gain, the interference between the transmitted signals also leads to an increase in the complexity of receiving and demodulating at the destination, which is even more detrimental to the effective communication between the two parties

Method used

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Embodiment Construction

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the implementation manners of the present invention will be further described in detail below.

[0028] Spatial modulation is a modulation technique that uses both traditional modulation symbols and the location of the transmitting antenna to carry information. In general spatial modulation, only some antennas are activated to transmit data, thus well solving the problem of signal interference from multiple antennas. At the same time, the introduction of cooperative technology increases the diversity gain to the destination node.

[0029] A multi-user cooperative spatial modulation method, see figure 1 and figure 2 , the modulation method includes the following steps:

[0030] 101: Build a large-scale collaborative multi-node communication model;

[0031] Among them, the large-scale cooperative multi-node communication model includes: a source node S, a relay node R an...

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Abstract

The invention discloses a multi-user cooperative space modulation method. The multi-user cooperative space modulation method comprises the following steps: constructing a large scale cooperative multi-node communication model; activating antennas to send data by a source node through space modulation; appointing a relay node to receive signals, forwarding the received signals; receiving the signals by a target node, wherein the signals are sent directly by the source node and are forwarded by the relay node; reconstructing to obtain the original signals according to a detection algorithm by the target node. According to the method provided in the invention, the interference among the signals sent by multiple antennas is reduced through combining a general space modulation technique and a cooperative technique; the hardware configuration of the sending end is reduced; the cooperative grain is increased at the same time; and the performance of the cooperative communication system is improved.

Description

technical field [0001] The present invention relates to the field of wireless communication physical layer, in particular to a multi-user cooperative spatial modulation method. The present invention proposes a general spatial modulation method (the number of activated antennas is greater than 1) combined with cooperative communication in a large-scale cooperative communication system information transmission technology. Background technique [0002] In the Massive MIMO system supported by distributed antenna technology, the interference between multiple antennas is an urgent problem to be solved. Gradually increasing the number of antennas, while increasing the space gain, the interference between the transmitted signals also leads to an increase in the complexity of receiving and demodulating at the destination, which is even more detrimental to effective communication between the two parties. The general spatial modulation technology is proposed to modulate part of the si...

Claims

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Application Information

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IPC IPC(8): H04B7/02H04B7/04
CPCH04B7/0413H04B7/026
Inventor 付晓梅王敏李奕苏毅珊金志刚
Owner TIANJIN UNIV
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