Energy-efficient optimization method for full-duplex d2d with joint relay selection and power allocation

An optimization method, full-duplex technology, applied in the field of mobile communication, can solve problems such as reducing system energy efficiency and power distribution difficulties

Active Publication Date: 2020-04-03
GUILIN UNIV OF ELECTRONIC TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

The increase in the number of users will bring more complex interference and make power allocation more difficult
At the same time, disordered relay selection may even reduce the energy efficiency of the system

Method used

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  • Energy-efficient optimization method for full-duplex d2d with joint relay selection and power allocation
  • Energy-efficient optimization method for full-duplex d2d with joint relay selection and power allocation
  • Energy-efficient optimization method for full-duplex d2d with joint relay selection and power allocation

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Embodiment Construction

[0054] The present invention will be described in further detail below in conjunction with the accompanying drawings, but it is not intended to limit the present invention.

[0055] figure 1 It shows a full-duplex D2D energy efficiency optimization method that combines relay selection and power allocation, and performs optimal power allocation and relay selection according to the distribution of full-duplex D2D user groups and full-duplex bidirectional relay users , thereby effectively reducing the total energy consumption, and maximizing energy efficiency under the constraints of spectrum efficiency and user power consumption, including the following steps:

[0056] (1) Initialize the positions of all full-duplex D2D user groups and full-duplex two-way relay users;

[0057] (2) Screen out the full-duplex D2D user groups that need relay-assisted transmission;

[0058] (3) Establish a basic model for maximizing energy efficiency;

[0059] (4) When the m(m∈[1,M]) full-duplex ...

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Abstract

The invention discloses an energy efficiency optimization method of full duplex D2D by combining relay selection and power distribution. Aiming at the problem of low energy efficiency of the traditional communication mode, the energy efficiency optimization method of full duplex D2D by combining relay selection and power distribution comprises the steps of firstly determining a full duplex D2D user group needing relay assisted transmission based on the position distribution of both the full duplex D2D user groups and full duplex bidirectional relay users; then building a power distribution matrix of the full duplex D2D user groups and the full duplex bidirectional relay users under the restricted condition of the lowest spectrum efficiency requirement and the maximum allowable transmission power; and finally performing the optimal relay selection on the full duplex D2D user groups and the full duplex bidirectional relay users by adopting the improved Hungary algorithm, and accordingly maximizing the total energy efficiency of a system. The technical scheme also can be extended to a multi-cell cellular network scene.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a full-duplex D2D energy efficiency optimization method of joint relay selection and power allocation. Background technique [0002] The rapid development of mobile communication has provided convenience for people's life, but the energy consumption generated by the communication industry has also shown explosive growth. According to relevant research, the energy consumption of the communication industry accounts for about 2% of the global carbon dioxide emissions. In this society that advocates energy conservation and emission reduction, energy efficiency, which measures the sustainable operation capability of wireless communication systems, has become a research hotspot in the industry. [0003] In order to achieve energy efficiency improvement in next-generation mobile communication systems, standardization organizations and network operators are constant...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04W40/22H04W52/26H04W52/34H04W52/46
CPCH04W40/22H04W52/267H04W52/34H04W52/46Y02D30/70
Inventor陈宏滨常怡亮赵峰
OwnerGUILIN UNIV OF ELECTRONIC TECH