能效优先的全双工异构携能通信网络资源分配  

Resource Allocation for Full-duplex Heterogeneous Network with SWIPT Based on Maximum Energy Efficiency

作　　者：朱晴 李陶深[1,2] 王哲 施安妮[1] ZHU Qing;LI Tao-shen;WANG Zhe;SHI An-ni(School of Computer and Electronic Information,Guangxi University,Nanning 530004,China;School of Information Engineering,Nanning University,Nanning 530200,China;School of Artificial Intelligent,Guangxi University for Nationalities,Nanning 530005,China)

机构地区：[1]广西大学计算机与电子信息学院,南宁530004 [2]南宁学院信息工程学院,南宁530200 [3]广西民族大学人工智能学院,南宁530005

出　　处：《小型微型计算机系统》2023年第1期177-184,共8页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(61762010)资助。

摘　　要：设计一种具有SWIPT的全双工异构蜂窝网络系统框架,考虑到小区之间的跨层干扰和宏微蜂窝小区的服务质量要求,提出一种基于最大化毫微蜂窝小区能效的资源分配算法.算法首先考虑对上行传输链路的功率控制,以减小对下行传输链路的干扰;其次在确定了上行最优传输速率的基础上,对下行发射功率和功率分流因子进行联合优化以最大化能效.针对联合优化的问题属于难以解决的非凸问题,首先利用Dinkelbach方法对原始非凸分式规划问题进行转化,并基于双循环变量法将联合优化问题转化为2个等价的子问题,然后通过拉格朗日对偶原理和次梯度迭代算法获得最优发射功率分配和功率分流因子.仿真实验证明了所提出的基于最大化系统能效的资源分配算法的可行性和有效性.A system framework for a full-duplex heterogeneous cellular network with simultaneous wireless information and power transfer(SWIPT)was designed, and a resource allocation algorithm based on maximizing system energy efficiency for this network scenario was proposed, considering the cross-layer interference between cells and the quality of service requirements of macro and micro cellular cells.At first, the algorithm considered the power control of the uplink transmission to reduce the interference to the downlink transmission.And secondly, based on the determined optimal uplink transmission rate, the downlink transmit power and power split ratio to maximize the system energy efficiency was optimized jointly.Since the joint optimization of the two variables is an intractable nonconvex problem, in order to solve the problem, this paper firstly transformed the original nonconvex fractional programming problem by using the Dinkelbach method, and transformed the joint optimization problem into two equivalent subproblems based on bicyclic variable method and Lagrange multiplier method.And then, the algorithm used the Lagrange duality principle and subgradient iterative algorithm to achieves the optimal transmit power allocation and power shunt ratio.Simulation experiments demonstrate the feasibility and the effectiveness of the proposed resource allocation algorithm based on energy efficiency maximization.

关 键 词：无线携能通信 异构蜂窝网络 资源分配 全双工 能量效率 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]