基于系统平均性能增益最大化的基站群协同分簇方案

doi:10.3969/j.issn.1000-436x.2012.11.018

摘要/Abstract

摘要：

提出了一种基于系统平均性能增益最大化的协同基站群分簇方案。首先，由基站间协同的信干比增益的概率分布得出基站间协同的平均信干比增益；然后，以系统平均性能增益最大化为标准生成簇结构。该方案在保证系统性能的同时降低了CSI失真对分簇带来的影响，且降低了系统开销。仿真结果表明，当信道变化因子和失真因子均为0.3时，该方案和现有利益树分簇方案相比，系统平均性能增益最大可提高0.7bit/s/Hz/cell。

关键词: 小区间干扰, 信道状态信息, 分簇, 协同处理

Abstract:

A novel clustering scheme based on maximizing average system performance was proposed.Firstly,according to the probability distribution of signal-to-interference-ratio (SIR)gain of base stations cooperation the average SIR gains were obtained.Then,the cluster structure was generated in the standard of maximizing the average system performance.Not only the average system performance was guaranteed but also the influence of CSI distortion was decreased,while the overall cost was reduced.Simulation results show that when the factors of CSI distortion and channel vibration both are 0.3,the proposed scheme provide a 0.7bit/s/Hz/cell increase of the average system performance compared with the benefit-tree clustering scheme.

Key words: inter cell interference, channel state information, clustering, cooperating process

李坤,黄开枝,吉江,冯涛,靳彦青. 基于系统平均性能增益最大化的基站群协同分簇方案[J]. 通信学报, 2012, 33(11): 144-150.

Kun LI,Kai-zhi HUANG,Jiang JI,Tao FENG,Yan-qing JIN. Clustering scheme of base stations cooperation based on maximizing the average system performance[J]. Journal on Communications, 2012, 33(11): 144-150.

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