期刊文献+

MU-MIMO系统的用户调度和预编码联合优化 被引量:3

Joint user scheduling and precoding in MU-MIMO system
下载PDF
导出
摘要 提出了一种有限反馈下多用户MIMO下行链路中用户调度和预编码的联合设计方法。在该方法中,每个用户向基站反馈自己希望的预编码向量序号,以及量化误差和自己信道的最大奇异值这两个标量。基站根据估计的信干噪比,选取信干噪比最大的一个用户,利用该用户反馈的预编码向量来生成一个预编码矩阵。基站继续逐个地选择其他用户,选择的准则是用户的信道能更好地匹配这个生成的预编码矩阵中的向量。该方法同时解决了多用户MIMO系统中,用户调度和预编码向量的设计这两个问题,属于一种跨层设计。仿真结果验证了所提方法的有效性。 A joint user pairing and precoding scheme in MU-MIMO broadcast channel with limited feedback is proposed.In the proposed scheme,each user feeds back its preferable precoding vector index and two scalars denoting quantization error and the largest singular value of channel matrix respectively.Base Station(BS) selects the first user who has highest estimated SINR,and generates a unitary precoding matrix based on the first user's preferred precoding vector.BS selects users whose channel can match the precoding vector in the generated matrix well.Numerical results verify the effectiveness of the proposed cross-layer design.
出处 《计算机工程与应用》 CSCD 北大核心 2011年第21期95-97,122,共4页 Computer Engineering and Applications
基金 国家自然科学基金No.60702073 国家重点基础研究发展规划(973)(No.2007CB310604)~~
关键词 多用户 多输入多输出 预编码 用户调度 有限反馈 multiuser Multiple Input Multiple Outpu(tMIMO) precoding scheduling limited feedback
  • 相关文献

参考文献1

二级参考文献24

  • 1Love D J, Heath R W. Limited feedback unitary precoding for spatial multiplexing systems. IEEE Trans Inf Theory, 2005, 51(8): 2967-2976. 被引量:1
  • 2Spencer Q H, Swindlehurst A L, Haardt M. Zero-forcing methods for downlink spatial multiplexing in multiuser MIMO channels. IEEE Trans Signal Process, 2004, 52(2): 461-471. 被引量:1
  • 3Jindal N. MIMO broadcast channels with finite-rate feedback. IEEE Trans Inf Theory, 2006, 52(11): 5045-5060. 被引量:1
  • 4Yoo T, Jindal N, Goldsimth A. Multi-antenna downlink channels with limited feedback and user selection. IEEE J Select Area Commun, 2007, 25(7): 1478-1491. 被引量:1
  • 5Yoo T, Goldsimth A. On the optimality of multiantenna broadcast scheduling using zero-forcing beamforming. IEEE J Select Area Commun, 2006, 24(3): 528-541. 被引量:1
  • 6Xue Y S, Kaiser T. Exploiting multiuser diversity with imperfect one-bit channel state feedback. IEEE Trans Veh Tech, 2007, 53(11): 183-193. 被引量:1
  • 7Sanayei S, Nosratinia A. Opportunistic downlink transmission with limited feedback. IEEE Tran Inf Theory, 2007, 53(11): 4363-4372. 被引量:1
  • 8Dimic G, Sidiropoulos N D. On downlink beamforming with greedy user selection: performance analysis and a simple new algorithm. IEEE Trans Signal Process, 2005, 53(10): 3857- 3868. 被引量:1
  • 9Trivellato M, Boccardi F, Tosato F. User selection schemes for MIMO broadcast channels with limited feedback. In: Proceedings of IEEE Vehicular Technology Conference Spring, Dublin: IEEE, 2007. 2089-2093. 被引量:1
  • 10Zheng L D, Tse D. Diversity and multiplexing: a fundamental tradeoff in multiple-antenna channels. IEEE Trans Inf Theory, 2003, 49(5): 1073-1096. 被引量:1

共引文献8

同被引文献31

  • 1李汉强,郭伟,郑辉.分布式天线系统MIMO信道容量分析[J].通信学报,2005,26(8):134-138. 被引量:13
  • 23GPP TR36.913. Requirements for further advancements for EUTRA (LTE-Advanced) ( Release8 ) [ S ]. 2008. 被引量:1
  • 3C, esbert D, Hanly S, Huang H, et al. Multi-cell bllMO cooper- ative networks:A new look at interference [ J ]. IEEE J Select Areas Commun,2010,28(9) :1380-1408. 被引量:1
  • 4Cheng Y, Lau V, Long Y. A sealable limited feedback design for network MIMO using per-eeU product oodebook[ J]. IEEE Trans on Wireless Communications, 2010, 9 ( 10 ) : 3093 - 3099. 被引量:1
  • 5Su D, Hou X, Yang C. Quantization based on per-cell code- book in cooperative multi-cell systems[ C]//Proc of Wireless Communications and Networking Conference (WCNC). Can- cun: IEEE ,2011 : 1753-1758. 被引量:1
  • 6Love D J, Heath R W. Limited feedback diversity techniques for correlated channel[ J ]. IEEE Trans on Veh Tech,2006,55 (2) :718-722. 被引量:1
  • 7Gersho A,Gray R M. Vector quantization and signal compres- sion [ M ]. New York : Kluwer, 1992. 被引量:1
  • 8Yuan F, Yang C. Phase ambiguity quantization for per-cell co- debook based limited feedback coordinated multi-point trans- mission systems [ C ]//Proc of Int Conf on Vehi Tech. Yokoha- ma:IEEE,2011. 被引量:1
  • 9Love D J, Robert W H, Strohme T. Grassmannian beamforming for multiple-input multiple-output wireless systems[ J ]. IEEE Transactions on Information Theory, 2003,49 ( 10 ) : 2735 - 2746. 被引量:1
  • 10Gao Cunhao,Shi Yi,Hou Y T,et al.On the throughput of MIMO-empowered multihop cognitive radio networks[J].IEEE Transactions on Mobile Computing,2011,10(11):1505-1519. 被引量:1

引证文献3

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