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多基站协作系统中有限反馈性能分析 被引量：4

Performance Analysis of Limited Feedback in Multi-Base-Station Coordination Systems
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摘要 针对多基站协作系统,分析了吞吐量性能受有限反馈的影响,推导了系统吞吐量损耗的上限值.在各小区反馈比特数相等和用户总反馈比特数固定情况下,提出了适应系统的有限反馈方案:当各小区反馈比特数相等时,反馈比特数随信噪比的增加,可使系统吞吐量损耗的上限值保持恒定;当用户总反馈比特数固定时,通过最优反馈分配方案使吞吐量损耗的上限值最小. The influence of limited feedback on the system throughput is analyzed and the upper bound of throughput loss is derived for the multi-base-station coordination system. The scheme of limited feedback is proposed for the system in two different conditions. The upper bound of system throughput loss is con- stant by increasing the feedback bits for an increasing signal-to-noise ratio when the number of feedback bits of each cell is equal. The upper bound of system throughput loss is minimized by the proposed opti- mal feedback allocation mechanism when the total number of feedback bits is fixed.
作者 韩东升 杨维
机构地区 华北电力大学电气与电子工程学院 北京交通大学电子信息工程学院
出处 《北京邮电大学学报》 EI CAS CSCD 北大核心 2013年第2期79-83,共5页 Journal of Beijing University of Posts and Telecommunications
基金 中央高校基本科研业务费专项资金项目(13MS60) 国家科技支撑计划项目(2013BAK060B03) 国家自然科学基金项目(51274018)
关键词 基站协作 有限量化反馈 块对角化预编码 多用户干扰 小区间干扰 base-station coordination limited feedback block diagonalization precoding multiuser in-terference inter-cell interference
分类号 TN929.5 [电子电信—通信与信息系统]
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参考文献6

  • 1韩东升,杨维,许昌龙.Nakagami-m信道下有限反馈多天线系统性能分析[J].北京邮电大学学报,2012,35(2):10-14. 被引量：2
  • 2Zhang Jun, Andrews J G. Adaptive spatial intercell interference cancellation in muhicell wireless networks [ J ]. IEEE Journal on Selected Areas in Communications, 2010, 28(9) : 1455-1468.
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二级参考文献6

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共引文献1

同被引文献21

  • 1EMMANOUIL P, MEHRDAD S, ATFA U, et al. On the e- volution of multi-cell scheduling in 3GPP LTE/LTE- A [ J]. IEEE Communications Surveys & Tutorials, 2013, 15( 2): 701-717.
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  • 6BHAGAVATULA R, HEATH R W. Adaptive limited feed- back for sum-rate maximizing beamforming in cooperative muhicell systems[ J ]. IEEE Transactions on Signal Process- ing, 2011, 59(2): 800-811.
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引证文献4

北京邮电大学学报
2013年 第2期

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