MIMO多向中继系统中的干扰管理技术研究

项目名称： MIMO多向中继系统中的干扰管理技术研究

项目编号： No.61271188

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 无线电电子学、电信技术

项目作者： 吕铁军

作者单位： 北京邮电大学

项目金额： 85万元

中文摘要： 本项目重点关注MIMO多向中继系统中的干扰管理问题，目的是利用物理层网络编码和干扰对齐等先进技术，对干扰管理算法的频谱效率、复杂度和反馈开销等核心性能及效率指标进行全方位的改进。研究的主要目标包括：（1）针对MIMO多向中继系统中的组间干扰管理问题，提出具有低反馈开销和低复杂度优点的实用干扰对齐方法；（2）针对MIMO多向中继系统中的组内干扰管理问题，提出适用于高阶调制物理层网络编码的高频谱效率低复杂度的检测方法；（3）针对MIMO中继系统中用户速率不对称的问题，研究同时合并多个不对称信息流的网络编码方法，实现下行传输时用户端的干扰消除。同时，从实际通信系统设计和评价的角度出发，搭建基于软件无线电的仿真实验平台，评估所提方案在真实信道环境下的性能。本课题的研究可促进多天线协作/中继通信网络中相应理论和技术的发展，研究成果有望成为未来移动通信系统的核心关键技术。

中文关键词： 协作通信；干扰管理；网络编码；信号空间对齐；分集复用折中

英文摘要： This project focuses on interference management in the MIMO multi-way relaying system, aiming at comprehensively improving the core performance and efficiency indicators, e.g., spectrum efficiency, complexity and feedback overhead, of interference management by introducing PNC and IA.The main targets include: (1) Proposing practical IA scheme with limited feedback and low complexity to deal with the inter-group interference in MIMO multi-way relaying system; (2) Designing the detector with high spectrum efficiency and low complexity for the high order modulated PNC scheme to deal with the intra-group interference in MIMO multi-way relaying system; (3) Designing network coding method that can combine data packets with different length to meet with the requirement of varieties of data rates in MIMO relaying system. Meanwhile, from the perspective of practical communication system design and evaluation, we build the simulation platform based on software radio to evaluate the performance of the proposed schemes in the realistic channel environment.The completion of this subject will promote the development of corresponding theories and key technologies in multi-antenna coordination/relay communication field, and the research results are expected to become the core and key technologies of the future mobile communicat

英文关键词： cooperative communication；interference management；network coding；signal space alignment；diversity-multiplexing tradeoff