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多用户MIMO下行系统迭代迫零预编码 被引量：2

Iterative Zero-Forcing Precoding for Multiuser MIMO Downlink Systems
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摘要 针对多用户多入多出(MIMO)下行系统,在用户分配单路数据流情况下,提出了一种低复杂度迭代预编码算法.算法使用迫零准则设计预编码向量,采用最大比合并更新接收向量.在用户分配单流时,该算法与已有的迭代Nu-SVD算法相比,不仅在性能上几乎没有损失,而且单次迭代复杂度的数量级下降为原算法的1/K(K为用户数目,K≥2),总复杂度下降超过50%,仿真结果验证了所提算法的性能. A low complexity iterative precoding algorithm is proposed for multiuser multiple-input multiple-output （ MIMO） downlink systems where a single data stream is allocated to each user. In the algorithm,precoders are designed according to the zero forcing （ ZF） criterion,and receive filters are updated via maximum ratio combining. Assuming one data stream per user,the algorithm has almost no performance loss compared with the iterative Nu-SVD algorithm,and the magnitude of complexity per iteration is one Kth that of the published one （ K denotes the number of users,K≥2） ,thus saving more than 50% total complexity costs. Simulations verify the effectiveness of the proposed algorithm.
作者 张健 刘元安 谢刚 毛峻岭
机构地区 泛网无线通信教育部重点实验室(北京邮电大学)
出处 《北京邮电大学学报》 EI CAS CSCD 北大核心 2010年第4期102-105,共4页 Journal of Beijing University of Posts and Telecommunications
基金 中瑞国际IMT-Advanced合作项目(2008DFA11780) 中加国际科学与技术合作项目(2010DFA11320) 国家自然科学基金项目(60802033 60873190) 国家高技术研究发展计划项目(2008AA01Z211) 国家科技支撑计划 国家保密管理支撑关键技术研究及应用示范项目(2008BAH33B02)
关键词 多用户多输入多输出 预编码 系统容量 复杂度 multiuser multiple-input multiple-output precoding sum capacity complexity
分类号 TN929.53 [电子电信—通信与信息系统]
  • 相关文献

参考文献8

  • 1罗振东,高宏,刘元安,高锦春.MIMO信道容量公式及其渐近界[J].北京邮电大学学报,2006,29(6):72-76. 被引量：13
  • 2Costa M. Writing on dirty paper[ J]. IEEE Transactions on Information Theory, 1983, 29(3) : 439-441.
  • 3Spencer Q H, Swindlehurst A L, Haardt M. Zero-forcing methods for downlink spatial multiplexing in multi-user MIMO channels [ J]. IEEE Transactions on Signal Processing, 2004, 52(2) : 461-471.
  • 4Lee S R, Park S, Moon S H, et al. New beamforming schemes with optimum receive combining for multiuser MIMO systems[ C]//2008 IEEE International Conference on Communications ( ICC 2008). Beijing: IEEE Press, 2008 : 4118-4122.
  • 5Pan Z, Wong K K, Ng T S. Generalized multiuser orthogonal space-division multiplexing[ J]. IEEE Transactions on Wireless Communications, 2004, 3 (6) : 1969- 1973.
  • 6Shen Z, Chen R, Andrews J G, et al. Low complexity user selection algorithms for multi-user MIMO systems with block diagonalization[ J]. IEEE Transactions on Signal Processing, 2006, 54(9): 3658-3663.
  • 7程云鹏,张凯院.矩阵论[M].西安:西北工业大学出版社,2008.
  • 8Luo Zhendong, Zhao Ming, Liu Siyang, et al. Greville- to-inverse-greville algorithm for V-BLAST systems [ C ]// 2006 IEEE International Conference on Communications ( ICC 2006). Istanbul: IEEE Press, 2006 : 42144218.

二级参考文献9

  • 1[1]Telatar I E.Capacity of multiantenna Gaussian channels[J].Euro Trans Telecommun,1999,10(6):585-595.
  • 2[2]Foschini G J.Layered space-time architecture for wireless communication in a fading environment when using multielement antennas[J].Bell Labs Tech J,1996,1(2):41-59.
  • 3[3]Foschini G J,Gans M J.On limits of wireless communication in a fading environment when using multiple antennas[J].Wireless Personal Commun,1998,6 (3):311-335.
  • 4[4]Dohler M,Aghvami H.On the approximation of MIMO capacity[J].IEEE Trans Wireless Commun,2005,4(1):30-34.
  • 5[5]Smith P,Shafi M.An approximate capacity distribution for MIMO systems[J].IEEE Trans Commun,2004,52(6):887-890.
  • 6[6]Grant A.Rayleigh fading multiple-antenna channels[J].EURASIP J Appl Signal Processing,2002(3):316-329.
  • 7[7]Shin H,Lee J H.Closed-form formulas for ergodic capacity of MIMO Rayleigh fading channels[C]//IEEE Proc IEEE ICC 2003.Anchorage:IEEE,2003:2990-3000.
  • 8[8]Abramowitz M,Stegnn C A.Handbook of mathematical functions with formulas,graphs,and mathematical tables[M].New York:Dover,1972:258,260,775.
  • 9[9]Whittaker E T,Watson G N.A course in modern analysis[M].4th ed.Cambridge:Cambridge University Press,1990:246.

共引文献13

同被引文献15

  • 1徐洪波,王俊,骆家骥,刘勇.空时编码的多用户MIMO系统用户调度性能分析[J].通信技术,2008,41(5):44-46. 被引量：4
  • 23GPP REV-080003 ,Views for the LTE-advaneed requirements[ S]. 2009.
  • 33GPP TR 36. 814,Further advancements for E-UTRA physical layer aspects[ S]. 2009.
  • 43GPP. CoMP cell set configuration [ EB/OL ]. [ 2011 - 10-10 ]. http :// www. 3gpp. org/ftp/tsg_rmr/WG2_R12/TSGR2_66/docs/R2-093075, zip.
  • 53GPP. Selection threshold and maximum size of CoMP cooperating set [ EB/OL]. [ 2011 -10-10]. http ://www. 3gpp. org/ftp/tsg ran/WG1 _ RL1/TSGRl_58/Docs/Rl-093572. zip.
  • 63GPP, Further discussion of frequency plan scheme on CoMP-SU-MIMO [ EB/OL]. [ 2011-10-10]. http://www. 3gpp. org/ftp/tsg_ran/WG1 _ RLI/TSGRl_56b/Docs/R1-091415. zip.
  • 73GPP. Views of schemes for CoMP[EB/OL]. [2011-10-10]. http:// www. 3gpp. org/ftp/tsg_ran/WGl RL1/TSGRI_63b/Docs/Rl-110551. zip.
  • 8谢亚琴.无线定位方法及其在宽带无线链路资源分配中的应用[D].南京:东南大学移动通信国家重点实验室,2011.
  • 9YU W, RHEE W. Degrees of Freedom in Wireless Multiuser Spatial Multiplex System with Mnhiple Antennas [ J ]. IEEE Transactions on Communications, 2006, 54 (10) :1747-1753.
  • 10ZHANG Wei, LETAIEF K B. MIMO Broadcast Scheduling with Limited Feedback [ J ]. IEEE Journal on Selected Areas in Connunications ,2007,25 (07) : 1457-1467.

引证文献2

二级引证文献1

北京邮电大学学报
2010年 第4期

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