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储能-发送模式的单天线两跳中继系统保密速率的优化

雷维嘉 杨小燕 江雪 谢显中

雷维嘉, 杨小燕, 江雪, 谢显中. 储能-发送模式的单天线两跳中继系统保密速率的优化[J]. 电子与信息学报, 2016, 38(9): 2233-2240. doi: 10.11999/JEIJ151371
引用本文: 雷维嘉, 杨小燕, 江雪, 谢显中. 储能-发送模式的单天线两跳中继系统保密速率的优化[J]. 电子与信息学报, 2016, 38(9): 2233-2240. doi: 10.11999/JEIJ151371
LEI Weijia, YANG Xiaoyan, JIANG Xue, XIE Xianzhong. Secrecy Rate Optimization for Single Antenna Two-hop Relay System in Energy-saving-then-transmitting Mode[J]. Journal of Electronics & Information Technology, 2016, 38(9): 2233-2240. doi: 10.11999/JEIJ151371
Citation: LEI Weijia, YANG Xiaoyan, JIANG Xue, XIE Xianzhong. Secrecy Rate Optimization for Single Antenna Two-hop Relay System in Energy-saving-then-transmitting Mode[J]. Journal of Electronics & Information Technology, 2016, 38(9): 2233-2240. doi: 10.11999/JEIJ151371

储能-发送模式的单天线两跳中继系统保密速率的优化

doi: 10.11999/JEIJ151371
基金项目: 

国家自然科学基金(61471076, 61301123),长江学者和创新团队发展计划(IRT1299),重庆市重点实验室专项经费

Secrecy Rate Optimization for Single Antenna Two-hop Relay System in Energy-saving-then-transmitting Mode

Funds: 

The National Natural Science Foundation of China (61471076, 61301123), The Program for Changjiang Scholars and Innovative Research Team in University (IRT1299), The Special Fund of Chongqing Key Laboratory

  • 摘要: 该文研究节点具有能量收集能力的两跳中继系统的物理层安全传输方案。考虑窃听节点与源和中继节点间都有直接链路的情况。每个数据传输时隙分为能量收集和数据传输两个阶段,各节点用收集的能量发送信号。中继采用放大转发方式,目的节点发送人工噪声进行协作干扰,保护在两跳传输中传输的保密信息。以最大化保密速率为目标,采用迭代算法优化能量吸收和数据传输两阶段的时间分配比例系数和协作干扰功率分配因子。仿真结果表明优化算法准确,优化后的协作干扰方案能显著提高系统的保密传输速率。由于考虑了窃听节点在两跳传输中都能接收到信号的可能性,文中方案更贴近实际,并解决了一个复杂的优化问题。
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出版历程
  • 收稿日期:  2015-12-08
  • 修回日期:  2016-05-10
  • 刊出日期:  2016-09-19

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