面向物理层安全的高能-谱效率协作干扰机理及方法研究

项目名称： 面向物理层安全的高能-谱效率协作干扰机理及方法研究

项目编号： No.61501211

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 曹斌

作者单位： 景德镇陶瓷大学

项目金额： 20万元

中文摘要： 现有基于协作干扰的物理层安全存在低能量效率、低频谱利用率的问题，协作动机的假设也较为理想，这些因素制约了协作干扰的后续发展和应用。随着异构网络的兴起，频谱非授权网络与授权网络的合作成为可能，为物理层安全研究提供了新自由度。针对如何在协作干扰中引入协作节点、能否将物理层安全和能-谱效率联合提升、如何提升的问题，借助协作动态频谱接入、极化信号处理和网络资源管理和分配等理论和技术，本项目致力于探索基于协作干扰的机理和方法以联合提升物理层安全和网络能-谱效率。为此，选定“网络和用户协作模型—物理层与信号处理关键技术—跨层联合资源分配和优化”为主线的研究框架，以协作干扰联合提升授权用户物理层安全、网络能-谱效率为目标，研究该框架下的协作模型建立、关键方法与技术、性能评估及优化等内容，以期为上述问题的回答提供部分理论支撑和技术参考。

中文关键词： 无线物理层安全；协作干扰；极化信号处理；资源管理和分配；动态频谱接入系统

英文摘要： In existing collaborative jamming based physical-layer security, energy efficiency and spectrum utilization are considerably low. In addition, the motivation for collaboration is too ideal. These factors hinder the development and applications of collaborative jamming. With the rise of heterogeneous wireless networks, the collaboration between spectrum licensed users and spectrum unlicensed users become possible, which provides new degrees of freedom for the research of physical-layer security. To address how to introduce collaborating node in collaborative jamming, and to understand how to simultaneously increase the physical-layer security, spectrum and energy efficiency, this proposal aims to investigate the mechanisms and methods based on collaborative jamming, by using cooperative dynamic spectrum access, polarization signal processing, and network resource allocation and management. To this end, the applicant selects ‘network and user collaboration modeling-physical-layer signal processing-cross-layer resource allocation and optimization’ as the research framework. The proposal will deeply study the critical issues in collaborative jamming for improving physical-layer security of licensed users and network-wide spectrum and energy efficiency, wherein, collaboration model, key enabling techniques, and performance evaluation and optimization will be focused. The goal of this proposal is to tackle the aforementioned challenges.

英文关键词： physical-layer security of wireless systems;collaborative jamming;polarization signal processing;resource management and allocation;dynamic spectrum access