基于瞬时中继的多小区干扰对齐技术研究

项目名称： 基于瞬时中继的多小区干扰对齐技术研究

项目编号： No.61302082

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： 王强

作者单位： 北京邮电大学

项目金额： 25万元

中文摘要： 随着4G无线通信的标准化和逐步商用，多小区干扰作为系统整体容量进一步提升的关键制约因素日益受到关注。干扰对齐技术被一致认为是有效解决多小区干扰的重要途径。然而，干扰对齐技术所需要的高信噪比限制以及可实用化的收发算法设计成为其在多小区干扰网络中亟待解决的关键问题，目前对该问题的研究刚刚起步。本课题采用瞬时中继的思想，利用瞬时多天线中继进行小区边缘覆盖，增强信噪比，研究基于瞬时中继的多小区联合干扰对齐，探索系统的理论容量界限，进而设计高效的收发算法，并通过仿真与试验平台相结合的方式进行评估与验证。本课题研究成果将有利于推动下一代无线通信网络架构的革新，提高系统资源效率，提升系统容量和频谱利用率。

中文关键词： 干扰对齐；瞬时中继；自由度；干扰中和；

英文摘要： With the standardization and the gradual commercial of 4G wireless communications, multi-cell interference,as a key constraint, gets more attention to further enhance the overall system capacity. Interference alignment technique is agreed as an important way to solve the multi-cell interference effectively. However, the limitations of high signal-to-noise ratio need by the interference alignment technology, and the design of practical transceiver algorithm，both become the key problems in the multi-cell interference network. The relevant study is just getting started. Our team use the method of instantaneous relay to enhance the cell edge coverage and improve signal-to-noise ratio. We research instantaneous relay-based multi-cell joint interference alignment, by exploring the theoretical capacity of the system boundaries, designing an efficient transceiver algorithms,and getting evaluation and verification through a combination of simulation and test platform. The results of this research will help to promote the innovation of the next generation of wireless communication network architecture, to improve the efficiency of system resources, and to enhance the system capacity and spectrum efficiency.

英文关键词： Interfere Alignment；Instantaneous Relay；Degrees of Freedom；Interference neutralization；