部分信道状态信息下簇规模均匀的基站群快速分簇方案

doi:10.3724/SP.J.1087.2012.01827

计算机应用 ›› 2012, Vol. 32 ›› Issue (07): 1827-1830.DOI: 10.3724/SP.J.1087.2012.01827

部分信道状态信息下簇规模均匀的基站群快速分簇方案

李坤,黄开枝,鲁国英

国家数字交换系统工程技术研究中心，郑州450002

收稿日期:2011-12-28 修回日期:2012-02-22 发布日期:2012-07-05 出版日期:2012-07-01
通讯作者: 李坤
作者简介:李坤（1987-），男，河南商丘人，硕士研究生，主要研究方向：移动通信；黄开枝（1973-），女，安徽来安人，副教授，主要研究方向：移动通信；鲁国英（1955-），男，安徽芜湖人，教授，主要研究方向：移动通信。

Fast clustering scheme of base station group based on partial CSI and uniform cluster size

LI Kun,HUANG Kai-zhi,LU Guo-ying

National Digital Switching System Engineering and Technological Research Center, Zhengzhou Henan 450002, China

Received:2011-12-28 Revised:2012-02-22 Online:2012-07-05 Published:2012-07-01
Contact: LI Kun

摘要/Abstract

摘要： 在获取的信道状态信息(CSI)失真且信道快变的情况下，现有分簇方案需要获取全部基站的CSI且不能快速得到簇结构。针对以上问题，提出了一种基于近邻传播(AP)聚类思想的基站群快速分簇方案。该方案只需获取近邻基站间（部分）的CSI，通过近邻基站间协同的平均信干比(SIR)增益来构成稀疏化的相似度矩阵；然后，在近邻基站间进行协同信息的交互、更新，快速生成多个协同簇；最后，以簇合并带来的平均信干比增益大小为依据合并较小规模的簇，从而达到簇规模均匀的目的。仿真结果表明，与完全CSI下的现有分簇方案相比，所提方案不但收敛速度快，而且簇规模较均匀。

关键词: 小区间干扰, 近邻传播, 分簇, 协同处理

Abstract: In the case of Channel State Information (CSI) distortion and channel fast changing, the existing clustering scheme needs to get CSI of all the base stations and generates cluster structure slowly. Concerning the problem, a fast clustering scheme based on Affinity Propagation (AP) algorithm was proposed in this paper. The scheme just needs CSI of neighboring base stations. Firstly, sparse similarity matrix was formed by the average Signal to Interfere Ratio (SIR) of cooperation between neighboring base stations. Then, among neighboring base stations, the interaction and update of collaborative information was done to quickly generate multiple clusters. Finally, the average SIR of cooperation between clusters was normal when the smaller clusters were combined to achieve the purpose of uniform cluster size. The simulation results show that the performance of the proposed scheme is better than the existing scheme in terms of convergence and cluster size uniformity.

Key words: inter-cell interference, Affinity Propagation (AP), clustering, cooperative processing

中图分类号:

李坤黄开枝鲁国英. 部分信道状态信息下簇规模均匀的基站群快速分簇方案[J]. 计算机应用, 2012, 32(07): 1827-1830.

LI Kun HUANG Kai-zhi LU Guo-ying. Fast clustering scheme of base station group based on partial CSI and uniform cluster size[J]. Journal of Computer Applications, 2012, 32(07): 1827-1830.

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部分信道状态信息下簇规模均匀的基站群快速分簇方案

Fast clustering scheme of base station group based on partial CSI and uniform cluster size

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