查询结果:   郝兰兰,赵力强,张耀元.D2D通信中高能效的资源分配算法研究[J].计算机应用与软件,2017,34(11):141 - 146.
中文标题
D2D通信中高能效的资源分配算法研究
发表栏目
网络与通信
摘要点击数
676
英文标题
ENERGY EFFICIENT RESOURCE ALLOCATION ALGORITHM IN D2D COMMUNICATION
作 者
郝兰兰 赵力强 张耀元 Hao Lanlan Zhao Liqiang Zhang Yaoyuan
作者单位
西安电子科技大学综合业务网国家重点实验室 陕西 西安 710071     
英文单位
State Key Laboratory of Integrated Services Networks,Xidian University,Xi’an 710071,Shaanxi,China     
关键词
D2D通信 频谱效率 能量效率 分簇算法 功率控制
Keywords
D2D communication Spectral efficiency Energy efficiency Clustering algorithm Power control
基金项目
国家自然科学基金项目(61372070);陕西省自然科学基础研究计划项目(2015JM6324);宁波市自然科学基金项目(2015A610117);港澳台科技合作专项项目(2015DFT10160);高等学校学科创新引智计划项目(B08038)
作者资料
郝兰兰,硕士生,主研领域:D2D通信中的无线资源管理。赵力强,教授。张耀元,博士生。 。
文章摘要
D2D(Device-to-Device)能够大幅度改善频谱资源匮乏问题,但同时也引入了复杂的同频干扰。提出多个D2D对同时共用相同的无线资源的模型,在满足最小频谱效率的要求下,达到最大化D2D通信系统能效的目标。提出一个新颖的无线资源管理算法:首先,为简化干扰模型,通过分簇算法完成对D2D用户的分组;然后利用广义分式规划理论将分式形式的目标优化问题等价转换为减式优化问题;最后,提出一个高效的功率控制和子载波分配的迭代算法。数值仿真结果显示,该算法在保证频谱效率的约束下,能够显著提高D2D通信系统的能效,并且具有很好的收敛性。
Abstract
D2D can greatly improve the scarcity of spectrum resources, but it also introduces complex same frequency interference. In this paper, we propose multiple D2D models to share the same wireless resources at the same time, and achieve the goal of maximizing the energy efficiency of D2D communication systems under the requirements of minimum spectrum efficiency. We propose a new wireless resource management algorithm. Firstly, in order to simplify the interference model, the clustering algorithm is used to complete the grouping of D2D users. Secondly, the generalized fractional programming theory is used to convert the fractional form objective optimization problem into the reduced optimization problem. Finally, we propose an efficient power control algorithm and an iterative algorithm for subcarrier allocation. Numerical simulation results show that the proposed algorithm can significantly improve the energy efficiency of D2D communication systems under the constraint of spectrum efficiency, and has good convergence.
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