多天线系统中基于有限反馈的物理层安全技术研究

项目名称： 多天线系统中基于有限反馈的物理层安全技术研究

项目编号： No.61301102

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 无线电电子学、电信技术

项目作者： 陈晓明

作者单位： 南京航空航天大学

项目金额： 25万元

中文摘要： 相对于一般的无线通信，基于物理层安全技术的无线安全通信在理论和技术上都有很多新的挑战。一方面它要降低传输速率以保证信息传输的安全性，另一方面它又要最大化信息的安全传输速率以满足服务质量要求，这两方面都与信道信息的反馈有着直接的联系。本项目正是在深入研究物理层安全通信的约束和目标的基础上，首先从理论上分析反馈与预编码、资源分配、干扰协调和反窃听检测等多天线系统中的物理层安全所涉及的一系列问题。然后重点研究和设计有限反馈情况下具有干扰时的鲁棒性反馈设计、资源有效的功率和反馈联合分配策略、新型干扰协调技术和服务质量驱动的自保护机制等技术问题，以实现信息的安全、可靠和高效的传输，为无线安全通信的进一步发展提供重要的理论和技术支持。

中文关键词： 物理层安全；多天线技术；资源分配；有限反馈；干扰协调

英文摘要： With respect to the general wireless communications, wireless secure communications based on physical layer security face several new challenging problems from the perspectives of theory and technique. On one hand, it needs to decrease the transmission rate to fulfill the requirement of information security. On the other hand, it needs to maximize the secure transmission rate to satisfy the requirement of quality of service (QoS). The two objectives have a tight connetction to the feedback of channel state information (CSI). According to the constraints and objectives of wireless secure communications based on physical layer security, this project first analyzes a series of theoretical problems of physical layer security in multi-antenna systems, such as feedback and precoding, resource allocation, interference coordination and anti-eavesdropping detection. Then, this project focuses on the research and design of robust feedback design with interference, resource-efficient power and feedback joint allocation, new interference coordination technique and QoS-driven self-protection mechanism under the condition of limited feedback, so as to achieve the secure, reliable and efficient information transmission, and also provide theoretical and technical supports for the further development of wireless secure communica

英文关键词： Physical layer security；multiple-antenna techniques；resource allocation；limited feedback；interference coordination