一种面向全双工多中继协作SWIPT网络的功率消耗方案  

Power Consumption Scheme Oriented to Full-duplex Multi-relay Cooperative SWIPT Networks

作　　者：单永峰 蒋锐[1,2] 徐友云[2] 李大鹏[1,2] SHAN Yong-feng;JIANG Rui;XU You-yun;LI Da-peng(College of Telecommunications and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China;National Engineering Research Center for Communication and Network Technology,Nanjing University of Posts and Telecommunications,Nanjing 210003,China)

机构地区：[1]南京邮电大学通信与信息工程学院,南京210003 [2]南京邮电大学通信与网络技术国家工程研究中心,南京210003

出　　处：《计算机科学》2022年第7期280-286,共7页Computer Science

基　　金：国家重点研发计划(2016YFE0200200);国家自然科学基金(61801240);南京邮电大学研究项目(NY220008);南京市栖霞区项目电能与数据无线同传及其装置。

摘　　要：在全双工多中继协作无线携能通信网络中,传统的中继选择算法未考虑到未被选择中继的闲置利用问题,导致中继数量增加时网络的性能浪费愈加严重,如何开发未被选择中继的剩余潜能成为提升网络性能的关键。对此,设计了一种新的HTT(Harvest then Transmit)功率消耗方案,在中继配备电池的情形下,通过充分利用中继处的能量收集模块增加了被选择中继处的发射功率,从而进一步提升了系统容量。此外,针对提出的新的HTT功率消耗方案,考虑了BIKT(Battery Information Known at Transmitter)和BIUT(Battery Information Unknown at Transmitter)两种应用场景。仿真实验的结果表明,3种中继选择算法,即单中继选择算法、贪婪中继选择算法和穷竭搜索算法,在采用提出的新的HTT功率消耗方案后,无论是应用于BIKT场景还是BIUT场景均能有效提升系统容量并降低中断概率。In full-duplex multi-relay cooperative simultaneous wireless information and power transfer(SWIPT)networks,traditional relay selection algorithms have not taken into account the idle utilization of unselected relays.As a result,the performance waste of the network becomes more serious as the number of relays increases.How to exploit the remaining potential of unselec-ted relays becomes the key to improve network performance.For this,a new HTT(Harvest then Transmit)power consumption scheme is proposed,which increases the transmit power of the selected relay by making full use of the energy harvesting module at the relay,thereby further improving the system capacity.In addition,for the proposed HTT power consumption scheme,two practical scenarios,BIKT(Battery Information Known at Transmitter)and BIUT(Battery Information Unknown at Transmitter)are considered.The result of simulation experiments show that three relay selection algorithms,namely single relay selection,greedy relay selection and exhaustion search,can effectively benefit from the proposed HTT power consumption scheme in terms of system capacity and outage probability whether applied to BIKT scenarios or BIUT scenarios.

关 键 词：SWIPT 全双工 中继选择 功率分割 中继协作 

分 类 号：TN915[电子电信—通信与信息系统]