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基于一阶统计量的CDMA信道估计方法

First order statistical methods for CDMA channel estimation
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摘要 本文是基于一阶统计量的CDMA信道估计方法研究,导出了信道估计和方差运算表达式,进行了估计器性能及峰均功率比分析。算法对信道没有特殊要求、运算简单且没有信息速率的损失。仿真结果验证了其有效性。 This paper mainly concerns with channel estimation method based on first order statistics for CDMA systems. It derives the expressions of channel estimator and estimation variance, and gives some analysis on the performance of estimators and ratio of peak to average power. The algorithm acquires no imposed conditions on the channel, and simple computation. There is no loss of information rates. Simulation results demonstrate its effectiveness.
作者 白文乐 刘泽民
机构地区 北方工业大学信息工程学院 北京邮电大学电信工程学院
出处 《电路与系统学报》 CSCD 北大核心 2008年第1期102-105,共4页 Journal of Circuits and Systems
基金 北京市属市管高等学校人才强教计划资助项目
关键词 码分多址 信道估计 一阶统计量 峰均比 导频 CDMA channel estimation first-order statistics PAPR pilot
分类号 TN929 [电子电信—通信与信息系统]
  • 相关文献

参考文献7

  • 1John G Proakis. Digital Communications (Fourth Edition) [M]. Mcgraw-Hill,2001.
  • 2G Tong Zhou, Mats Viberg, Tomos McKeley. A first-order statistical method for channel estimation [J]. IEEE Signal Processing Letters, 2003-03, 10: 57-60.
  • 3L Tong, G Xu, T kailath. Blind identification and equalization based pm second-order statistics: A time-main approach [J]. IEEE Transactions on information theory, 1994, 40(2): 340-349.
  • 4J K Tugnait, G B Giannakis, Y Hua, P Stoica, L Tong Eds. Channnel estimation and equalization using higher-order statistics in Signal Processing Advances in Wireless and Mobile Communications: Trends in Channel Estimation and Equalization [Z]. Englewood Cliffs, NJ, 2001.
  • 5F Mazzenga. Channel estimation and equalization for M-QAM transmission with hidden pilot sequence [J]. IEEE Trans. Broadcasting, 2000-06, 46: 170-176.
  • 6Tugnait J K, Weilin Luo. On channel estimation using superimposed training and first order statistics [A]. Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP'03). 2003 IEEE International Conference on [C]. 2003-04, 4: Ⅳ_624_Ⅳ_627.
  • 7白文乐,刘泽民.一种鲁棒的变导频功率多径信道估计方法[J].微电子学与计算机,2005,22(12):33-35. 被引量：4

二级参考文献8

  • 1J K Tugnait. Channnel Estimation and Equalization Using Higher-order Statistics. in Signal Processing Advances in Wireless and Mobile Communications: Trends in Channel Estimation and Equalization, Englewood Cliffs, NJ, 2001.
  • 2G Tong Zhou, Mats Viberg, Tomos McKeley. A First-order Statistica Method for Channel Estimation. IEEE Signal Processing Letters, Mar. 2003, 10: 57～60.
  • 3John G. Proakis Digital Communications (Fourth Edition),Mcgraw-Hill, 2001.
  • 4B Muquet, M de Courville, et al. A Subspace Based Blind and Semi-blind Channel Identification Method for OFDM Systems. Proc. IEEE-SP Workshop Signal Process. Adv.Wireless Commun. May 1999: 170～173.
  • 5H Holma, A Toskala. WCDMA for UMTS: Radio Acess for Third Generation Mobile Communications. 2nd Ed. Wiley,2002.
  • 6F Mazzenga. Channel Estimation and Equalization for MQAM Transmission with Hidden Pilot Sequence. IEEE Trans. Broadcasting, June 2000, 46: 170～176.
  • 7Wolfgang H Gerstacker, Desmond P Taylor. Blind Channel Order Estimation Based Second Order Statistics. IEEE Signal Processing Letters, Feb. 2003, 10(2).
  • 8A P Liavas, P A Regalia, J P Delmas. Blind Channel Approximation: Effective Channel Order Determination. IEEE Trans, Signal Processing, Dec. 1999, 47: 3336～3344.

共引文献3

电路与系统学报
2008年 第1期

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