功率联合受限的两跳协作全双工中继网络功率分配  

The Research on Power Allocation for Dual-Hop Cooperative Full-Duplex Relay Network with Joint Power Limited

作　　者：许笑微 史孝华 石芳 赵洁 刘涛 纪圣华 XU Xiaowei;SHI Xiaohua;SHI Fang;ZHAO Jie;LIU Tao;JI Shenghua(Qingdao Military Representative Office,Qingdao 266022,Shandong,China;Weihai BEIYANG Optoelectronic INFO-TECH Co.,Ltd.,Weihai 264209,Shandong,China)

机构地区：[1]陆军驻青岛地区军代室,山东青岛266022 [2]威海北洋光电信息技术股份公司,山东威海264209

出　　处：《流体测量与控制》2022年第2期16-19,共4页Fluid Measurement & Control

摘　　要：近年来,随着通信技术不断飞速发展,促使用户对通信服务质量提出更高的要求。协作中继技术在扩大无线网络覆盖范围、提升系统性能方面表现出极大的优势。在协作通信系统中,由于各节点除了传输自身信息之外,还需辅助传输其他节点信息,于是会产生更多的资源消耗。同非协作相比,协作通信更有必要采用最佳的分配方式整合系统资源,以实现良好的系统性能。而在资源需求日益紧张的当下,分配资源的难题一直存在,现有资源主要针对功率,因此合理地对有限的功率资源进行分配、更好地提升系统性能就成为了研究的重点。本文主要研究了在功率受限情况下,全双工单向协作中继网络的功率分配问题,并分别与各种功率分配方案进行了仿真验证和性能比较。在考虑直达链路作为有用传输全双工协作中继网络中,使用译码转发协作策略,针对于单功率和总功率联合限制的约束下,从最大化系统信道容量出发,实现功率分配算法,得到自适应的最佳功率组合。In recent years,the rapid development of communication technology,prompting users put forward higher requirements for communication service quality continuously.Cooperative relay technology in expanding wireless network coverage and improving the system performance shows very strong advantage.In the cooperative communication system,since each node has to transmit other node information in addition to transmitting its own information,it will generate more resource consumption.Compared with non-collaboration,collaborative communication is more necessary to integrate the system resources with the best allocation to achieve good system performance.In the increasingly tense demand for resources,the allocation of resources has been continued,and now the resources are mainly for the power,namely how to reasonably limited power resources are allocated,and help to improve the system performance better become the focus of research.In this paper,the power allocation problem of full-duplex one-way cooperative relay network under power constraint is studied,and the simulation results and performance comparison with various power allocation schemes are given.In a full-duplex cooperative relay network where the direct link is considered as a useful transmission,a decoding-forwarding cooperative strategy is used,the adaptive optimal power combination is obtained by the power allocation algorithm based on maximizing the system channel capacity under the constraints of single power and total power.

关 键 词：协作中继 半双工 全双工 功率分配 

分 类 号：TN925.93[电子电信—通信与信息系统]