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STBC MC-DS-CDMA系统基于子空间信道盲估计的多用户检测 被引量:1

Subspace-Based Blind Channel Estimation and Multiuser Detection for STBC MC-DS-CDMA System
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摘要 该文提出了一种空时分组码(STBC)多载波(MC)DS-CDMA(STBCMC-DS-CDMA)系统结构,并通过在STBCMC-DS-CDMA下构造的统一的信号模型,实现了系统上行链路基于子空间的信道盲估计,仿真结果表明了方法行之有效。基于信道估计的结果进一步实现了系统最小均方差(MMSE)多用户检测,使系统的BER性能得到很大提高。 In this paper, a Space-TimeBlock-Coded MultiCarrier Direct-Sequence Code-Division Multiple-Access (STBC MC-DS-CDMA) system is proposed. By constructing the unified signal model of STBC MC-DS-CDMA system, the subspace-based blind channel estimation is achieved and its efficiency is shown by simulation results. Based on the estimation results, consequently, the Minimum Mean-Squared Error (MMSE) multiuser detection for the STBC MC-DS-CDMA is also realized which improves the system performance significantly.
出处 《电子与信息学报》 EI CSCD 北大核心 2008年第2期379-382,共4页 Journal of Electronics & Information Technology
基金 国家自然科学基会(60572036) 东南大学移动通信国家重点实验室开放基金(W200703)
关键词 空时分组码 多载波DS—CDMA 信道估计 多用户检测 误码率 Space-Time Block Coding (STBC) Multicarrier DS-CDMA Channel estimation Multiuser detection Bit Error Rate (BER)
作者简介 杨维:男,1964年生,博士,教授,研究方向为移动通信中的信号处理技术. 杨薇:女,1980年生,硕士,研究方向为移动通信中的信号处理技术. 王新生:男,1976年生,硕士,研究方向为移动通信中的信号处理技术.
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参考文献9

  • 1Prasad R and Hara S.An overview of multi-cacrier CDMA. IEEE Uommun. Magazine, 1997, 35(12): 126-133.
  • 2Alamouti S M. A simple transmit diversity technique for wireless communications. IEEE J. Sel. Areas Commun., 1998, 16 (8): 1451-1458.
  • 3Hu X Y and Chew H Y. On the performance and capacity of an asynchronous space-time block-coded MC-CDMA system in the presence of carrier frequency offset. IEEE Trans. on Vehicular Technology, 2004, 53(5): 1327-1340.
  • 4Tarokh V, Jafarkhani H, and Calderbank A R. Space-time block codes from orthogonal designs. IEEE Trans. on Info. Theory, 1999, 45(5): 1456-1467.
  • 5Wu X J, Yin Q Y, and Zeng Y X. Downlink channels identification for space-time coded multiple-input multiple-output MC-CDMA systems. IEEE International Conference on Acoustics, Speech and Signal Processing, Hong Kong, China, 2003, 4: Ⅳ-417-20.
  • 6Namgoong J, Wong T F, and Lehnert J S. Subspace multiuser detection for multicarrier DS-CDMA. IEEE Trans. on Commun., 2000, 48(11): 1897-1908.
  • 7Huang L and Zheng F C. Blind channel estimation in multirate multiearrier DS-CDMA systems. International Journal of Wireless Information Networks, 2005, 12(2): 69-78.
  • 8杨维,李世明,颜永庆,程时昕.阵列天线多载波DS-CDMA系统基于子空间的信道估计[J].信号处理,2006,22(6):796-799. 被引量:1
  • 9Wu X J, Yin Q Y, and Feng A G. Equivalently blind time-domain channel estimation for MC-CDMA system over frequency-selective fading channels in multiuser scenario. Proc. of IEEE Vehicular Technology Conference, Atlantic City, USA, Nov. 2001 Fall, 2687-2691.

二级参考文献6

  • 1R. Prasad and S. Hara," An overview of muhi-carder CDMA ,"IEEE Commun. Magazine,vol. 35, no. 12, pp. 126 -33, Dec. 1997.
  • 2Shiming Li,Wei Yang,Junshi Chen,et al,"Performance of multicarrier DS-CDMA system with antenna array," IEEE Vehicular Technology Conference 2004-Fall (VTC 2004-Fall), Los Angeles, September 26 - 29,2004.
  • 3J. Namgoong, T. F. Wong and J. S. Lehnert," Subspace muhiuser detection for muhicarrier DS-CDMA," IEEE Trans. Commun, vol. 48, No. 11, pp. 1897 - 1908, Nov.2000.
  • 4L. Huang and F. C. Zheng, "Blind channel estimation in multirate multicarrier DS-CDMA systems,"in Proc. PIMRC 2002 ,pp. 1545 - 1549,2002.
  • 5吴晓军,殷勤业,赵铮,冯爱刚.多载波码分多址系统的上行空频信道盲估计[J].西安交通大学学报,2001,35(12):1244-1247. 被引量:1
  • 6李悦,蔡跃明,徐信.MC-CDMA系统基于子空间跟踪的导频辅助信道估计[J].信号处理,2003,19(5):490-493. 被引量:4

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