基于符号检测辅助的最小泄漏干扰对齐算法研究  

Research on minimizing weighted leakage interference algorithm based on symbol detection aided

作　　者：贾国庆[1] 刘健 黄李冰一 陆军[2] 李明燕[2] Jia Guoqing;Liu Jian;Huang Libingyi;Lu Jun;Li Mingyan(College of Physics and Electronic Information, Qinghai University for Nationalities, Xining 810007;Department of Information Technology, Qinghai Institute of Architecture and Technology, Xining 810000)

机构地区：[1]青海民族大学物理与电子信息工程学院,西宁810007 [2]青海建筑职业技术学院信息技术系,西宁810000

出　　处：《高技术通讯》2019年第8期767-771,共5页Chinese High Technology Letters

基　　金：中国科学院无线传感网与通信重点实验室开放基金(2016002);青海民族大学校理工自然科学重点(2019XJZ09)资助项目

摘　　要：为了减轻蜂窝网络中的小区间干扰,学术界已经在讨论一种消除小区间干扰比较好的算法,即干扰对齐(IA)。干扰对齐作为一种干扰消除技术,能在高信噪比情况下获得很好的系统容量。然而为了实现干扰对齐,发射机和接收机必须联合设计,这通常是很难实现的。另外,在优化不同标准的基础上,大量的迭代收发器设计方法被提出和研究。本文主要对基于最小泄漏干扰(MIN-WLI)的干扰对齐算法进行研究。这里提出了一种符号检测辅助的最小泄漏干扰对齐算法(SDA-MIN-WLI),它是一种基于符号检测的迭代收发器联合设计最小泄漏干扰的算法。系统仿真验证了改进算法要比传统算法具有更好的系统性能。In order to alleviate inter-cell interference in cellular networks, an academic algorithm interference alignment (IA) has been adopted to eliminate interference between cells. Interference alignment is an interference cancellation technique that achieves good system capacity at high signal-to-noise ratios. However, in order to achieve interference alignment, the transmitter and receiver must be jointly designed, which is often difficult to achieve. In addition, a large number of iterative transceiver design methods have been proposed and studied on the basis of optimizing different standards. The interference alignment algorithm based on minimizing weighted leakage interference (MIN-WLI) is mainly studied. Here, a symbol detection aided minimizing weighted leakage interference alignment algorithm (SDA-MIN-WLI) is proposed, which is a symbol detection algorithm based on the joint design of iterative transceivers with minimum leakage interference. The simulation results show that the improved algorithm has better system performance than the traditional algorithm.

关 键 词：干扰对齐(IA) 最小泄漏干扰(MIN-WLI) 符号检测辅助的最小泄漏干扰(SDA-MIN-WLI) 

分 类 号：TN929.53[电子电信—通信与信息系统]