Performance Analysis of Physical Layer Security of Untrusted Relay System Based on Limited Feedback

WU Ya-feng; ZHAO Rui; HE Yu-cheng; XIE Wei-bo

doi:10.3969/j.issn.0372-2112.2015.11.017

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Performance Analysis of Physical Layer Security of Untrusted Relay System Based on Limited Feedback

更新时间：2025-07-16

- Performance Analysis of Physical Layer Security of Untrusted Relay System Based on Limited Feedback
- Acta Electronica Sinica Vol. 43, Issue 11, Pages: 2247-2254(2015)
- 作者机构：
  
  1. 华侨大学信息科学与工程学院,福建,厦门,361021
  2. 西安电子科技大学综合业务网理论及关键技术国家重点实验室,陕西,西安,710071
  3. 华侨大学信息科学与工程学院,福建,厦门,361021
  4. 西安电子科技大学综合业务网理论及关键技术国家重点实验室,陕西,西安,710071
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China (No.61401165, No.61271383, No.61201264, No.61302095);Quanzhou Sciecne and Technology Project (No.2013Z36);Natural Science Foundation of Fujian Province (No.2015J01262, No.2014J01243);Research Foundation of Huaqiao University (No.13Y0384)
- DOI：10.3969/j.issn.0372-2112.2015.11.017
  CLC： TP929.5
- Published：2015
- 稿件说明：
移动端阅览
WU Ya-feng, ZHAO Rui, HE Yu-cheng, et al. Performance Analysis of Physical Layer Security of Untrusted Relay System Based on Limited Feedback[J]. Acta Electronica Sinica, 2015, 43(11): 2247-2254.
DOI：

WU Ya-feng, ZHAO Rui, HE Yu-cheng, et al. Performance Analysis of Physical Layer Security of Untrusted Relay System Based on Limited Feedback[J]. Acta Electronica Sinica, 2015, 43(11): 2247-2254. DOI： 10.3969/j.issn.0372-2112.2015.11.017.

摘要

在基于有限反馈获得部分信道状态信息的条件下

研究了放大转发非可信中继系统的物理层安全传输技术.通过目的节点发送人工噪声干扰信息

使系统获得了正安全容量.推导了安全中断概率和传输中断概率的闭合表达式

分析了反馈比特数对系统安全性和可靠性的影响

进而提出了能同时兼顾系统安全性和可靠性的最优反馈比特数的自适应选择方案.

Abstract

Under the condition of partial channel state information that is obtained from limited feedback

a physical layer security transmission technique is investigated for amplify-and-forward untrusted relay systems

where the positive secrecy capacity is obtained through the artificial noise interference information transmitted by the destination node.Closedform expressions for security outage probability and transmission outage probability are derived

and the impacts of the number of feedback bits on security and reliability are analyzed.Furthermore

an adaptive selection scheme for the optimal number of feedback bits is proposed in order to simultaneously satisfy both required security and reliability.

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