基于总能效最优化的终端匹配设计和实现

发布时间：2018-01-15 08:04

本文关键词：基于总能效最优化的终端匹配设计和实现　出处：《电视技术》2017年Z2期 　论文类型：期刊论文

【摘要】：终端直通通信技术(Device-to-Device communication,D2D)是指相距较近的用户设备(user equipment,UE)可不借助于基站而直接进行通信,它可以有效提高传输速率和频谱利用率。受限于电池的容量,基站调度上应尽可能使终端的续航时间更长。为此,本文旨在追求单位能量的传输比特率最大化,即能效最大化目标。本文在构建蜂窝用户与D2D用户资源复用场景下的能效模型基础上,将目标实现分为两个步骤:1)终端最优发射功率的设置,利用准凸函数的性质,通过最优化的方法迭代求解蜂窝和D2D用户各自的最优功率,使得复杂度大为降低;2)利用KM算法实施蜂窝用户与D2D对的配对。通过仿真验证,使用本文提出的算法相对于以最大功率发送的情况下可以获得约40%左右的增益。
[Abstract]:The terminal through communication technology is Device-to-device communication. D2D) refers to the user equalization device that is close to each other and can communicate directly without the help of the base station. It can effectively improve the transmission rate and spectrum efficiency. Limited by the battery capacity, the base station scheduling should make the terminal life as long as possible. Therefore, this paper aims to maximize the transmission bit rate per unit energy. Based on the energy efficiency model of cellular user and D2D user resource reuse scenario, the goal realization is divided into two steps: 1) the optimal transmission power of the terminal is set. By using the property of quasi-convex function, the optimal power of cellular and D2D users is solved iteratively by the optimization method, which greatly reduces the complexity. 2) the KM algorithm is used to implement the pairing between the cellular user and the D2D pair. The simulation results show that the proposed algorithm can obtain about 40% gain compared with the maximum power transmission.
【作者单位】：南京邮电大学电子科学与工程学院;金陵科技学院网络与通信工程学院;
【基金】：国家自然科学基金项目(61372126;61302101) 江苏省自然科学基金项目(BK20130874;BK20140881) 南京邮电大学研究项目(NY213072)
【分类号】：TN929.5
【正文快照】： D2D通信是指相距较近的用户可不借助于基站而直接进行通信,它利用了蜂窝用户空间位置特性进行频率复用以提高频谱效率,现已得到了标准化组织和工业界的广泛关注。D2D通信系统中存在着很多研究热点。国内外已经有较多文献对相关问题做了理论研究。文献[1]提到了D2D通信面临的主

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