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Energy efficiency optimization method based on full-duplex bidirectional relay D2D network

A two-way relay, energy-efficient technology used in mobile communications

Active Publication Date: 2016-12-21
GUILIN UNIV OF ELECTRONIC TECH
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  • Abstract
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Problems solved by technology

However, most of the existing communication methods currently work in the half-duplex mode, and few people consider the more efficient full-duplex mode.

Method used

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  • Energy efficiency optimization method based on full-duplex bidirectional relay D2D network
  • Energy efficiency optimization method based on full-duplex bidirectional relay D2D network
  • Energy efficiency optimization method based on full-duplex bidirectional relay D2D network

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Embodiment

[0073] Such as figure 1 as shown,

[0074] An energy efficiency optimization method based on a full-duplex two-way relay D2D network, comprising the following steps:

[0075] 1) The energy efficiency optimization problem of establishing a full-duplex two-way relay-assisted D2D network;

[0076] 2) In the cellular link, find out the optimal transmission power of the cellular user CUE (cellular user equipment, cellular user) that can maximize the link energy efficiency;

[0077] 3) In the full-duplex two-way relay-assisted D2D link, find the optimal full-duplex D2D user SUE (source user equipment, source user) and DUE (destination user equipment, target user) that can maximize the energy efficiency of the link transmission power;

[0078] 4) In the full-duplex two-way relay-assisted D2D link, find out the optimal amplification gain of the full-duplex two-way relay user RUE (relay user equipment, relay user) that can maximize the energy efficiency of the link;

[0079] 5) Alt...

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Abstract

The invention discloses an energy efficiency optimization method based on a full-duplex bidirectional relay D2D network. The method comprises a cellular user, a pair of full-duplex D2D users multiplexing the frequency band of the cellular user, and one full-duplex bidirectional relay user assisting with D2D communication. By use of a double-layer alternative iteration optimization algorithm, the transmission power of the cellular user and the full-duplex D2D users and the amplification gain of the full-duplex bidirectional relay user can be dynamically adjusted, the influences exerted by interference between the users and self-interference of the full-duplex users on network performance are effectively alleviated, and the energy efficiency of a system can be maximized under the constraints of minimum frequency spectrum efficiency. During communication of the cellular user, the full-duplex relay-assisted D2D users can share the frequency band of the cellular user for direct communication, by use of cellular network basis configuration, same-time same-frequency D2D communication and cellular communication are realized, power consumption of the cellular communication is reduced, the energy efficiency of a cellular network is effectively improved, and the method is applied to communication environment with requirements for high density and low power consumption.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to an energy efficiency optimization method based on a full-duplex two-way relay D2D network. Background technique [0002] With the exponential increase in the number of smart mobile devices and the diverse needs of mobile communication methods, the energy consumption of mobile communication has shown explosive growth. Therefore, the energy efficiency to measure the sustainable operation of wireless communication systems has become the current domestic and foreign academic and industrial circles. focus problem. [0003] D2D (Device-to-Device, direct terminal) is a new technology in mobile communication in which two short-distance terminals share the frequency band of the base station and communicate directly without the need for the base station to forward signals. It can not only improve the spectrum utilization and throughput of the cellular communication sy...

Claims

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Application Information

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IPC IPC(8): H04W24/02H04W28/02H04W52/24H04W52/32
CPCH04W24/02H04W28/0221H04W52/243H04W52/32
Inventor 陈宏滨常怡亮赵峰
Owner GUILIN UNIV OF ELECTRONIC TECH
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