摘要
针对高原山区丰富植被和山地丘陵给通信用户带来严重的路径损耗,增加通信系统能耗问题,提出一种基于能量效率(energy efficiency,EE)的优化算法。首先,利用多峰绕射模型模拟高原山区电波传输损耗,在保证通信用户服务质量(quality of server,QoS)的前提下,最大化系统中端到端(D2D)用户设备的总能量效率,将优化问题分解为功率控制和信道选择两个子问题进行求解;其次,利用拉格朗日对偶和Dinkbach算法联合解决功率控制;最后,利用Gale⁃Shapley匹配算法实现信道匹配。仿真结果表明,与现有算法相比,本文算法能够有效约束同频干扰,增加系统内信道资源利用率,提高系统的能量效率,降低系统能耗,提高系统性能。
In view of the abundant vegetation and mountainous hills in the plateau and mountainous areas,which cause serious path loss to communication users,increase the energy consumption of communication systems.This paper proposes an optimization algorithm based on energy efficiency(EE).First,the multi⁃peak diffraction model is used to simulate the transmission loss of radio waves in the plateau and mountainous areas.Under the premise of ensuring the quality of server(QoS)for communication users,the total energy efficiency of the D2D user equipment in the system is maximized,and the optimization problem is decomposed into power.Two sub⁃problems of control and channel selection are solved.Secondly,the Lagrangian duality and Dinkbach algorithm are used to jointly solve the power control.Finally,on the basis of power control,the Gale⁃Shapley matching algorithm is used to achieve channel matching.The simulation results show that compared with the existing algorithms,the proposed algorithm can effectively restrain co⁃channel interference,increase the utilization of channel resources in the system,improve the energy efficiency of the system,reduce system energy consumption,and improve system performance.
作者
彭艺
付晓霞
刘煜恒
安浩杰
Peng Yi;Fu Xiaoxia;Liu Yuheng;An Haojie(Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Kunming 650500,China)
出处
《电子测量与仪器学报》
CSCD
北大核心
2021年第9期150-156,共7页
Journal of Electronic Measurement and Instrumentation
基金
国家自然科学基金(61761025)项目资助。
关键词
高原山区
能量效率
功率控制
信道选择
plateau mountainous
energy efficiency
power allocation
channel allocation
