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D2D Resource Allocation Method Based on Energy Efficiency

A technology of energy efficiency and resource allocation, applied in power management, machine-to-machine/machine-type communication services, wireless communication, etc., can solve problems such as cellular user interference, reduce transmission power, facilitate programming, and improve energy efficiency effect

Active Publication Date: 2021-01-05
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when D2D users reuse wireless spectrum resources, it will also cause interference to the cellular users whose resources are reused.

Method used

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  • D2D Resource Allocation Method Based on Energy Efficiency
  • D2D Resource Allocation Method Based on Energy Efficiency
  • D2D Resource Allocation Method Based on Energy Efficiency

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Embodiment Construction

[0042] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0043] The energy-efficiency-based D2D resource allocation method of the present invention uses binary coding for the power of D2D users and sets the energy efficiency of a single D2D user as the fitness function and the objective function to perform selection cross-mutation operations to calculate the best value of a single D2D user. Energy efficiency, get the energy efficiency matrix. Then transform the energy efficiency matrix into a square matrix. Then perform negation for each element in the energy matrix. Finally, if the transformed energy matrix satisfies the precondition of the Hungarian algorithm, then the Hungarian algorithm is used for resource allocation to improve the overall energy efficiency of the D2D communication system.

[0044] The energy efficiency formula for the i-th D2D user when multiplexing the resource blocks of the j-t...

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Abstract

The present invention discloses a D2D resource distribution method based on energy efficiency which is a method for improving D2D energy efficiency through combination of the genetic algorithm and theHungary algorithm. The method comprises the steps of: (1) employing the genetic algorithm to improve the energy efficiency of each D2D subscriber; and (2) employing the Hungary algorithm to perform resource distribution to improve the energy efficiency of the 2D2 whole system. The D2D resource distribution method based on energy efficiency can improve the whole energy efficiency of the D2D systemon the premise of meeting the requirement of the minimum transmission rate of a cellular subscriber.

Description

technical field [0001] The invention relates to a method for allocating D2D resources based on energy efficiency, and belongs to the technical field of terminal direct connection in mobile communication. Background technique [0002] With the development of mobile communication technology, the scarcity of wireless spectrum resources is becoming more and more obvious. In order to effectively alleviate this problem, a device-to-device communication technology is proposed, that is, a D2D communication technology. In a single cell system, D2D users can directly communicate with the multiplexed cellular user resource blocks without going through the base station. However, when D2D users reuse wireless spectrum resources, it will also bring interference to cellular users whose resources are reused. And with the massive use of mobile terminals, green communication is also one of the responsibilities of D2D communication. [0003] Therefore, it is necessary to improve the energy ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/36H04W72/04H04W72/12H04W4/70
CPCH04W52/367H04W72/0473H04W72/1263
Inventor 姚建国沈丽娜
Owner NANJING UNIV OF POSTS & TELECOMM