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D2D distributed resource allocation method for maximizing generalized energy efficiency of system

A technology of distributed resources and allocation method, applied in the field of terminal direct-to-distributed resource allocation, can solve the problem that user pairing and power allocation cannot be satisfied at the same time, and achieve the effect of improving system performance

Active Publication Date: 2020-06-26
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention provides a D2D distributed resource allocation method (Generalized- Energy-Efficiency Maximization based D2DDistributedResourceAllocation, GEEM-D2D-DRA)

Method used

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  • D2D distributed resource allocation method for maximizing generalized energy efficiency of system
  • D2D distributed resource allocation method for maximizing generalized energy efficiency of system
  • D2D distributed resource allocation method for maximizing generalized energy efficiency of system

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Embodiment 1

[0108] Such as figure 2 As shown, a D2D distributed resource allocation method that maximizes the generalized energy efficiency of the system includes the following steps:

[0109] S1: Build a communication system model and define the generalized energy efficiency of the system;

[0110] S2: Optimizing the communication system model and constructing an optimization problem that maximizes the generalized energy efficiency of the system;

[0111] S3: Use the method of step-by-step processing to solve the problem of maximizing the generalized energy efficiency of the system, including the user matching solution stage and the power allocation solution stage, and complete the distributed allocation of D2D resources.

[0112] In the specific implementation process, a system generalized energy efficiency measure is proposed to describe the benefit and pay ratio of all D2D user pairs in the whole system, and based on this, the problems of user pairing and power allocation are respec...

Embodiment 2

[0192] In order to more fully set forth the beneficial effects that the present invention has, below in conjunction with specific embodiment and relevant simulation result and analysis, further the effectiveness and advancement of the present invention are described.

[0193] Some typical parameter values ​​are selected for system simulation, as shown in Table 1. Unless otherwise specified below, all simulation results use the parameters in Table 1.

[0194] Table 1: System simulation parameter settings

[0195]

[0196] Without loss of generality, the present invention assumes that the HUE and VUE in the system are randomly and evenly distributed in a square area with a side length of 100 meters, such as Figure 5 shown. The content attributes of each HUE and VUE are simulated using CRAWDAD upb / hyccups (v.2016-10-17) [15] real social network experimental data. The database contains a total of 5 content attribute factors. The iterative convergence precision is set to ε=...

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Abstract

A D2D distributed resource allocation method for maximizing the generalized energy efficiency of a system comprises the following steps: constructing a communication system model, and defining the generalized energy efficiency of the system; optimizing the communication system model, and constructing an optimization problem of maximizing the generalized energy efficiency of the system; and solvingan optimization problem of maximizing the generalized energy efficiency of the system by adopting a step-by-step processing method, including a user matching solving stage and a power allocation solving stage, so as to complete distributed allocation of D2D resources. The invention provides a D2D distributed resource allocation method for maximizing the generalized energy efficiency of a system.According to the method, the generalized energy efficiency measurement of the system used for describing the income and the payment ratio of all D2D user pairs in the whole system is provided, the problems of user pairing and power distribution are solved based on the generalized energy efficiency measurement, the improvement of the system performance is effectively obtained, and the technical defect that user pairing and power distribution cannot be met at the same time in an existing scheme is overcome.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, and more specifically, relates to a device-to-device (D2D) distributed resource allocation method that maximizes system generalized energy efficiency. Background technique [0002] In order to alleviate the exponential growth of huge infrastructure investment pressure in mobile communications and improve the effectiveness and flexibility of local services, D2D communication technology has received extensive attention. As one of the key technologies of the fifth generation mobile communication (The Fifth Generation, 5G), D2D communication technology can enable user terminals (User Equipment, UE) to communicate directly without the participation of base stations (evolvedNode B, eNB), thus effectively reducing the The traffic load of eNB improves spectrum efficiency and energy efficiency. [0003] Based on the user-to-network (UE-to-Network, UE-NW) relay communication [1] propo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W76/14
CPCH04W72/0473H04W76/14H04W72/53Y02D30/70
Inventor 江明黄晓婧吴宽黄玲徐建勋
Owner SUN YAT SEN UNIV