期刊文献+

能量收集与协作网络安全容量优化技术 预览

Secrecy Capacity Optimization Technique for Energy Harvest Cooperative Cognitive Radio Network
在线阅读 下载PDF
分享 导出
摘要 基于协作通信与能量收集技术,研究在能量收集认知无线电网络中,主用户和次用户的信道资源配置问题,目标是主用户安全容量最大.在该网络中,次用户发送节点具有能量收集功能,且帮助主用户发送节点进行协作传输.作为回报,在次用户协作主用户通信结束后,主用户发送节点分配频谱资源给次用户发送节点.在保证次用户服务质量的前提下,设计主用户安全容量最大化的计算方法.仿真实验结果表明:安全容量与能量收集因子成反比关系,与协作通信因子成正比关系.提出的算法可以保证主用户传输的安全容量.最后,假设次用户以恒定小功率工作,当协作通信因子从0.2~0.5变化时,提出的算法比现有策略在安全容量上平均高出79.28%,80.46%,64.23%,78.85%,此外,提出的算法比现有算法的计算效率平均高出7.34倍. In order to maximize the primary secrecy rate,we researched the channel resource allocation of the primary user (PU) and the secondary user (SU) in the energy harvesting cognitive radio (EHCR) which is based on the cooperative communication and energy harvesting technology. In this network,the SU,which can harvest energy from the ambient,will assist the PU with cooperative communication. As a reward,the SU can get the opportunity to access the PU s spectrum resource when the cooperative communication is over. Given the QoS demand of SU transmission node,we design a computing method of maximizing the primary secrecy rate. Numerical results demonstrate that the secrecy capacity is inverse proportional to the energy harvesting ratio,and it is also direct proportional to the cooperative communication ratio. We also figure out that the secrecy capacity is achievable. In the end,we assume that the SU works at a constant low sending power,when the cooperative communication ratio changes from 0.2 to 0.5,our research is lifting 79.28%,80.46%,64.23%,78.85% on average,respectively,on the maximization of the secrecy rate,in comparison to the existing strategy. Moreover,the proposed algorithm is about 7.34 times efficient than the existing algorithms averagely.
作者 吴嘉鑫 武继刚 陈龙 隋秀峰 Wu Jiaxin;Wu Jigang;Chen Long;Sui Xiufeng(School of Computer Science and Technology,Guangdong University of Technology,Guangzhou 510006;State Key Laboratory of Computer Architecture (Institute of Computing Technology,Chinese Academy of Sciences),Beijing 100190)
出处 《计算机研究与发展》 EI CSCD 北大核心 2019年第3期533-543,共11页 Journal of Computer Research and Development
基金 国家自然科学基金项目(61672171,61702115) 广东省科技厅科技计划项目(2015B010129014,2018B030311007) 中国博士后科学基金项目(2017M622632) 计算机体系结构国家重点实验室开放课题(CARCH201303).
关键词 认知无线电 协作通信 能量收集 安全容量 窃听者 cognitive radio cooperative communication energy harvesting secrecy capacity eavesdropper
作者简介 Wu Jiaxin,born in 1995.PhD candidate. His main research interests include wireless sensor network,cognitive radio network and mobile edge computing;通信作者:武继刚,born in 1963.Professor and PhD supervisor. Member of CCF. His main research interests include theoretical computer science,parallel and distributed computing,asjgwucn@outlook.com;Chen Long,born in 1988.PhD,post doctor. His main research interests include wireless sensor network,cognitive radio network,game theory and mobile edge computing.lonchen@mail.ustc.edu.cn;Sui Xiufeng,born in 1982.PhD,associate professor of the Institute of Computing Technology,Chinese Academy of Sciences. His main research interests include high performance computer architectures,system performance modeling and evaluation,and cloud computing.,suixiufeng@ict.ac.cn.
  • 相关文献

参考文献1

二级参考文献2

共引文献3

投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈