电子学报2017，Vol.45Issue(1)：67-73,7.DOI:10.3969/j.issn.0372-2112.2017.01.010
能量收集系统中基于能量协同和协同干扰的保密传输方案
A Secure Transmission Scheme for Wireless Energy Harvesting Systems via Energy Cooperation and Cooperative Jamming
摘要
Abstract
The optimization of secrecy rate is studied in the wireless relay-eavesdropper channel in which the nodes harvest energy.An enhanced physical layer security communication scheme is proposed based on artificial noise-aided cooperative jamming and energy cooperation.All nodes follow the save-then-transmit protocol.The nodes harvest energy first,which is then used to transmit the data.The relay is operated as an amplify-and-forward relay,and the destination sends intended jamming noise to protect information.Since the relay requires more energy,surplus energy is transferred from the destination to the relay to increase the available power of the relay.A two-step optimization algorithm to maximize the secrecy rate is derived through the optimization of the energy-saving time ratio and the jamming power allocation scaling factor.The simulation results prove that the proposed energy cooperation scheme can effectively improve secrecy rate.关键词
保密速率/能量收集/能量协同/协同干扰/物理层安全Key words
secrecy rate/energy harvesting/energy cooperation/cooperative jamming/physical layer security分类
信息技术与安全科学引用本文复制引用
雷维嘉,江雪,左莉杰,谢显中..能量收集系统中基于能量协同和协同干扰的保密传输方案[J].电子学报,2017,45(1):67-73,7.基金项目
国家自然科学基金(No.61471076,No.61271259,No.61301123) （No.61471076,No.61271259,No.61301123）
重庆市基础与前沿研究计划(No.cstc2015jcyjA40047) （No.cstc2015jcyjA40047）
长江学者和创新团队发展计划(No.IRT1299) （No.IRT1299）
重庆市科委重点实验室专项经费 （）
