基于实际链路数据速率模型的D2D通信研究  

Research on Device-to-Device Communication Based on Practical Link Data Rate Model

作　　者：曾喜良[1] 冯艳[1] 高海波[1] 彭浩[1] 

机构地区：[1]湖南涉外经济学院信息科学与工程学院,长沙410205

出　　处：《计算机工程》2015年第10期105-110,116,共7页Computer Engineering

基　　金：湖南省教育科学"十二五"规划课题基金资助项目(XJK014BGD046)

摘　　要：关于设备与设备(D2D)通信的研究大多以网络吞吐量最大化为目的,忽略D2D链路模式选择造成的巨大能耗。为此,基于实际链路数据速率模型,将正交频分多址无线网络的D2D问题建模为非线性整数规划问题,在使能耗最小化的同时,满足用户数据速率要求。给出一种多项式时间有效求解联合算法,确定模式选择、信道和功率分配。仿真实验结果表明,与多种基准算法相比,该算法可明显降低功耗,节约幅度达57%以上。Most existing works on Device-to-Device（D2D）communications aim to maximize network throughput,which ignoring the huge energy consumption caused by the link mode selection of D2 D.To solve this problem,the D2 D communication problem of Orthogonal Frequency Division Multiple Access（OFDMA）wireless network is modeled as a nonlinear integer programming problem based on a practical link data rate model,whose objective is to minimize power consumption while meeting the user data rate requirements.Therefore,an effective algorithm is proposed to solve it in polynomial time,which jointly determines mode selection,channel allocation and power assignment.Simulation experimental results show that the proposed algorithm can achieve over 57% power savings,compared with several baseline methods.

关 键 词：设备与设备通信 实际链路数据速率模型 非线性整数规划 模式选择 功耗 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]