期刊文献+

空时复用多用户MIMO系统联合天线选择 被引量:2

Joint Antenna Selection Algorithm for Spatial Multiplexing Multi-user MIMO System
下载PDF
导出
摘要 在下行多用户MIMO通信系统中,用户间很难相互利用彼此间信息,用户间干扰消除必须在基站完成。又由于多用户MIMO系统的复杂结构,使得其链路成本极大增加。针对这些问题,提出一种低复杂度的预编码算法和相应的优化预处理算法,达到消除多用户干扰的目的,与传统线性预编码算法相比,所提算法可充分利用多用户系统容量,为用户提供较好的空间发射分集增益。同时,为了降低系统硬件成本,进一步给出一种基于误码率的发送端、接收端联合天线选择算法。所提天线选择算法可以取得与优化预处理算法相近的误码率性能,使得多用户通信系统性能与硬件成本间达到很好的折衷。仿真结果表明所提算法可以获得较好的性能,适用于实际的通信系统。 Multi-user multi-input multi-output (MU-MIMO) spatial multiplexing system is a downlink transmission technique. The challenge is to design transmit and receive processing methods to decompose the MU-MIMO downlink channel into multiple parallel independent single user MIMO downlink channel. And the configuration of MU-MIMO system is complex, it makes the cost is very high. Aiming at these problems, a low complexity precoding scheme for MU-MIMO system was proposed. Compared with the traditional precoding algorithm, the proposed algorithm has lower computational cost, and can get good performance. For providing more transmitting diversity gain, a preprocessing algorithm was proposed to optimizing the system performance. And for reducing the hardware cost, a joint antenna selection algorithm was given out based on error rate. The proposed antenna selection algorithm can achieve similar bit error rate (BER) performance as the preprocessing optimal method, and get satisfactory tradeoff between the performance and hardware cost. Simulation results show the feasibility and effectiveness of the proposed precoding and antenna selection algorithms in practical applications.
出处 《系统仿真学报》 CAS CSCD 北大核心 2010年第6期1466-1471,共6页 Journal of System Simulation
关键词 多用户MIMO系统 预编码 信噪比 天线选择 误码率 MU-MIMO system precoding signal-to-noise ratio (SNR) antenna selection BER
  • 相关文献

参考文献9

  • 1韩锋,刘应状,朱光喜,韦耿,陈世明.一种多天线多用户下行系统保障公平的资源分配策略[J].系统仿真学报,2008,20(12):3216-3219. 被引量:1
  • 2Spencer Q H, Swindlehurst A L, Haardt M. Zero-forcing methods for downlink spatial multiplexing in multiuser MIMO channels [J]. IEEE Transactions on Signal Processing, 2004, 52(2): 461-471.
  • 3Choi L, Murch R D. A transmit processing technique for multiuser MIMO systems using a decomposition approach [J]. IEEE Transactions on Wireless Communications, 2004, 3(1): 20-24.
  • 4Chen R, Heath Jr R W, Andrews J G. Transmit selection diversity for unitary precoded multiuser spatial multiplexing systems with linear receivers [J]. IEEE Transactions on Signal Processing, 2007, 55(3): 1159-1171.
  • 5Tarighat A, Sadek M, Sayed A H. A multi user beamforming scheme for downlink MIMO channels based on maximizing signal-to-leakage ratios [C]// IEEE ICASSP, Philadelphia, USA. USA: IEEE, 2005, iii/1129-iii/1132.
  • 6李晓辉,易克初,黑永强,刘乃安.相关MIMO信道下可变数目天线选择算法[J].系统仿真学报,2007,19(24):5759-5762. 被引量:6
  • 7Kim J, Park S, Lee J H, Jung H. A scheduling algorithm combined with zero-forcing beamforming for a multiuser MIMO wireless system [C]// Vehicular Technology Conference. USA: IEEE, 2005: 211-215.
  • 8Edelman A. Eigenvalues and condition numbers of random matrices [D]. Cambridge, MA, USA: Massachusetts Institute of Technology, 1989.
  • 9Golub G H, Van Loan C F, Matrix computations [M]. USA: The Johns Hopkins University Press, 1996.

二级参考文献19

  • 1孟庆民,颜永庆,尤肖虎,Jae Young Ahn.空间相关MIMO信道中一种自适应的天线选择算法[J].电子与信息学报,2006,28(1):130-134. 被引量:2
  • 2张文强,周志杰,郑翔.一种MIMO OFDM系统中的自适应比特和功率分配算法[J].系统仿真学报,2007,19(2):340-343. 被引量:8
  • 3BrankaVucetic JinhongYuan 王晓海 译.空时编码技术[M].北京:机械工业出版社,2004..
  • 4杨大成.移动传播环境[M].北京:机械工业出版社,2003..
  • 5Kharrat-Kammoun, F Fontenelle. Antenna Selection for MIMO Systems Based on an Accurate Approximation of QAM Error Probability [C]// 61^st Vehicular Techonology Conference. Sweden: IEEE, 2005: 206-210.
  • 6Zhenglan Zhou, Yanjie Dong. A Novel Antenna Selection Scheme in MIMO Systems [C]//ICCCAS. China.: IEEE, 2004: 190-194.
  • 7Jose Lopez Vicario, Miguel Angel Lagunas, Caries Anton-Haro, A Cross-Layer Approach to Transmit Antenna Selection [J]. IEEE Trans. On Wireless Communications (S1536-1276), 2006, 5(8): 1993-1997.
  • 8Hongyuan Zhang, Huaiyu Dai. Fast Transmit Antenna Selection Algorithms for MIMO Systems with Fading Correlation [C]// 60^th Vehicular Technology Conference. USA: IEEE, 2004: 1638-1642
  • 9Heejung Yu, Myung-Soon Kim. Transmit Antenna Selection for MIMO Systems with V-BLAST Type Detection [C]//ISPACS, Korea: IEEE, 2004: 634-638.
  • 10Spencer Q H, Peel C B, Swindlehurst A L. An introduction to the multi-user MIMO downlink [J]. IEEE Communications Magazine (S0163-6804), 2004, 42(10): 60-67.

共引文献5

同被引文献7

引证文献2

二级引证文献9

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