期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

一种新的基于正交波束成型的用户反馈和选择方案

Novel user selection and feedback strategy with orthogonal beamforming
下载PDF
导出
摘要 在采用有限反馈的下行多天线多用户系统中,提出一种新的基于正交波束成型的用户反馈和选择方案。根据该正交波束成型方法的特点,推导出信道质量信息(channel quality information,CQI)的表达式,给出相应的反馈策略和用户选择方法。仿真结果表明,在实际系统中激活用户数比较少时,该方案的性能优于基于迫零波束成型(zero-forcing beamforming,ZFBF)有限反馈用户选择方案,为多天线多用户系统的应用提供了更好的参考。 A novel user selection and feedback strategy is proposed in downlink multi-antenna multi-user systems with the orthogonal beamforming.The expression of the channel quality information（CQI） is derived,and the corresponding feedback and user selection method is provided.In practical system with small number of active users,the proposed strategy achieves higher throughput than the scheme of limited feedback and user selection based on zero-forcing beamforming（ZFBF）,which turns out to be a promising scheme for practical application of multi-antenna multi-user systems.
作者 史林 邱玲 孙栋
机构地区 军械工程学院光学与电子工程系 中国科学技术大学个人通信与扩频实验室
出处 《系统工程与电子技术》 EI CSCD 北大核心 2010年第12期2520-2523,共4页 Systems Engineering and Electronics
基金 国家科技重大专项(2008ZX03003-004) 国家科技支撑计划(2008BAH30B09)资助课题
关键词 下行多天线多用户系统 有限反馈 正交预波束成型 用户选择 downlink multi-antenna multi-user system limited feedback orthogonal beamforming user selection
分类号 TN929.5 [电子电信—通信与信息系统]
  • 相关文献

参考文献16

  • 1Caire G.Shamai S.On the achievable throughput of a multiantenna Gaussian broadcast channel[J].IEEE Trans.on Information Theory,2003,49(7):1691-1706.
  • 2Weingarten H,Steinberg H,Shamai S The capaaty region of the gaussian multiple-input multiple-output broadcast channel[J].IEEE Trans.on Information Theory,2006.52(9):3936-3964.
  • 3Costa M.Writing on dirty paper[J].IEEE:Trans.on Information Theory,1983,29(5):439-441.
  • 4Peel C B,Hochwald B M,Swindlehurst A L.A vector-perturbation technique for near-capacity multiantenna multiuser communication-part Ⅰ:channel inversion and regularization[J].IEEE-Trans.on Communication,2005,53(1):195-201.
  • 5Spencer Q H.Swindlehurst A L,Haardt M.Zero-forcing methods for downlink spatial multiplexing in multiuser MIMO channels[J].IEEE Trans.on Signal Processing,2006,52(2):461-471.
  • 6Viswanath P.Tse D N C.Laroia R Opportunistic beamforming using dumb antennas[J].IEEE Trans.Information Theory,2002,48(6):1277-1294.
  • 7Dai W.Liu Y J.Rider B.How many users should be turned on in a multi-antenna broadcast channel[C] //41 st Annual Conference on Information Science and System,2007:806-811.
  • 8Dai W,Liu Y J.Rider B,et al How many users should be turned on in a multi-antenna broadcast channel?[J].IEEE Journal on Selected Areas in Chmmunications,2008,26(8):1526-1535.
  • 9Kaibin H.Andrews J G,Heath R W.Performance of orthogonal beamforming for SDMA with limited feedback[J].IEEE Trans.on Vehicular Technology,2009,58(1):152-164.
  • 10Taesang Y,Goldsmith A On the optimality of multiantenna broadcast scheduling using zero-forang beamforming[J].IEEE:Journal on Selected Areas in Cmnmunications,2006.24(3):528-541.
系统工程与电子技术
2010年 第12期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部