能量获取D2D异构网络中频效优化的资源管理算法

来源期刊:中南大学学报(自然科学版)2020年第3期

论文作者:邝祝芳 赵佳豪 邓晓衡

文章页码:704 - 714

关键词:能量获取;D2D通信;资源管理;凸优化;频谱效率

Key words:energy harvesting; D2D communication; resource management; convex optimization; spectral efficiency

摘    要:研究能量获取D2D异构网络中频谱效率优化的资源管理问题,包括D2D的通信模式选择、基站选择、信道分配、功率分配、传输时间分配,同时考虑蜂窝用户的QoS约束、能量获取约束、传输时间约束。构建的数学模型是一个混合整数非线性规划问题,为了解决该问题,基于凸优化理论、拉格朗日乘子法、可行方向法进行求解,对构建的数学模型进行化简,提出最大化频谱效率的资源管理算法SERM。研究结果表明:SERM算法对各种网络场景都能够收敛,并且能够最大化频谱效率。

Abstract: The resource management problem in energy harvesting-based D2D heterogeneous networks with the goal of maximizing spectrum efficiency was investigated. The communication mode selection, base station selection, channel allocation, power allocation, transmission time allocation were considered in the resource management problem, together with guaranteeing the QoS constraints, energy harvesting constraints and transmission time constraints of cellular users. The formulated model is a mixed integer non-linear programming problem. In order to solve this problem, the convex optimization theory, Lagrange multiplier method and feasible direction method were used to handle the issue. The formulated model was simplified, and then a spectrum efficiency resource management algorithm(SERM) was proposed. The results show that the SERM algorithm can converge with different network scenarios, and can maximize the spectral efficiency as well.

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