| 一种基于基站协同的波束形成算法 |
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| 引用本文： | 杨长茂,张祖凡,陈前斌.一种基于基站协同的波束形成算法[J].重庆邮电学院学报(自然科学版),2009(1). |
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| 作者姓名： | 杨长茂 张祖凡 陈前斌 |
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| 作者单位： | 重庆邮电大学移动通信技术重点实验室; |
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| 基金项目： | 教育部新世纪优秀人才支持计划(NCET-06-0778);;重庆市教委科学研究计划(KJ080517);;重庆市自然科学基金(CSTC,2007BB2453);;重庆邮电大学科研基金(A2008-51&A2008-07) |
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| 摘 要： | 将MIMO和波束形成相结合,可以有效地消除用户间的干扰,在多小区环境下,用户还受到来自小区内的同频干扰(CCI)。针对小区用户受到的CCI,改进了基于信号漏损比的波束形成算法,将其应用于多小区环境。该算法考虑小区内用户所受同频干扰影响的差异,根据用户信号功率、漏损给本小区内用户的干扰功率和临近小区用户的干扰功率重新定义信号漏损比。按照用户信号漏损比最大化的原则,利用基站协同,多小区联合选择波束形成矢量,并对该算法在不同条件下进行了仿真分析,结果表明该算法降低了多小区覆盖的用户的误比特率。
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| 关 键 词： | 多用户多输入多输出 同频干扰 信号漏损比 波束形成 协同 |
A beamforming algorithm based on base station cooperation |
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| YANG Chang-mao,ZHANG Zu-fan,CHEN Qian-bin.A beamforming algorithm based on base station cooperation[J].Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition),2009(1). |
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| Authors: | YANG Chang-mao ZHANG Zu-fan CHEN Qian-bin |
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| Institution: | Key Laboratory of Mobile Communication Technology;Chongqing University of Posts and Telecommunications;Chongqing 400065;P.R.China |
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| Abstract: | The beanforming with MIMO can effectively eliminate the interferences between users.Under the environment of multi-cell,the users are suffered from the co-channel interference.Hence,a beamforming algorithm based on signal and leakage ratio was improved for multi-cell system and applied to multi-cell.This algorithm considers the difference between interferences suffered by users who were covered by multi-cell.According to user's signal power and leakage power,the algorithm redefined the signal and leakage ra... |
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| Keywords: | multiuser-MIMO co-channel interference signal and leakage ratio beamforming cooperation |
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