Performance of NLMS-based Parallel Interference Cancellation (PIC) For Up-Link CDMA Systems

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• 作者：S. C. Chan (1)
  Y. J. Chu (1)
  
  1. Department of Electrical and Electronic Engineering ; The University of Hong Kong ; Pokfulam Road ; Hong Kong ; Hong Kong
  
• 关键词：Parallel interference cancellation ; Normalized least mean square ; Switch ; mode noise ; constrained ; Performance analysis
• 刊名：The Journal of VLSI Signal Processing
• 出版年：2015
• 出版时间：February 2015
• 年：2015
• 卷：78
• 期：2
• 页码：155-162
• 全文大小：365 KB
• 参考文献：1. Varanasi, M. K., & Aazhang, B. (1990). Multistage detection in asynchronous code-division multiple-access communications. / IEEE Transactions on Communications, 38(4), 509鈥?19. CrossRef
  2. Divsalar, D., Simon, M. K., & Raphaeli, D. (1998). Improved parallel interference cancellation for CDMA. / IEEE Transactions on Communications, 46, on. 2, 258鈥?68. CrossRef
  3. Xue, G., Weng, J., Le-Ngoc, T., & Tahar, S. (1999). Adaptive multistage parallel interference cancellation for CDMA. / IEEE Trans. Selected Areas in Commun., 17(10), 1815鈥?827. CrossRef
  4. Hsieh, Y. T., & Wu, W. R. (2008). Performance analysis of an adaptive two-stage PIC CDMA receiver in AWGN channels. / Signal Processing, 88(6), 1413鈥?427. CrossRef
  5. Aboulnasr, T., & Mayyas, K. (1997). A robust variable step-size LMS-type algorithm: analysis and simulations. / IEEE Transactions on Signal Processing, 45(3), 631鈥?39. CrossRef
  6. Evans, J. B., Xue, P., & Liu, B. (1993). Analysis and implementation of variable step size adaptive algorithms. / IEEE Transactions on Signal Processing, 41(8), 2517鈥?535. CrossRef
  7. Wei, Y., Gelfand, S. B., & Krogmeier, J. V. (2001). Noise-constrained least mean squares algorithm. / IEEE Transactions on Signal Processing, 49(9), 1961鈥?970. CrossRef
  8. Huang, Y., Hung, H., & Wen, J. (2008). Performance of a novel adaptive multistage full parallel interference canceller for CDMA systems. / IEEE Transactions on Vehicular Technology, 57(3), 1944鈥?951. CrossRef
  9. Chan, S. C., & Zhou, Y. (2010). Convergence behavior of NLMS algorithm for Gaussian inputs: solutions using generalized Abelian integral functions and step size selection. / Signal Process. Syst., 59(3), 255鈥?65. CrossRef
  10. Chan, S. C., Chu, Y. J. & Zhang, Z. G. (2009). On the convergence behavior of the noise-constrained NLMS algorithm. / In Proc. IEEE ISCAS 2009, Taipei, pp. 2049鈥?052, May 24鈥?7 2009.
  
• 刊物类别：Engineering
• 刊物主题：Electrical Engineering
  Circuits and Systems
  Computer Imaging, Vision, Pattern Recognition and Graphics
  Computer Systems Organization and Communication Networks
  Signal,Image and Speech Processing
  Mathematics of Computing
  
• 出版者：Springer New York
• ISSN：1939-8115

文摘

Parallel interference cancellation (PIC) is a promising detection technique to suppress multiple access interference (MAI) for up-link direct-sequence CDMA (DS-CDMA) systems. Adaptive PICs are attractive due to its low implementation complexities and good performance. In this paper, we propose a general framework for analyzing the bit error rate (BER) and convergence performance of the normalized LMS (NLMS) based PIC. To further improve the convergence speed of the PIC system, a novel switch-mode noise-constrained NLMS (SNC-NLMS) algorithm for the adaptive multistage PIC (AMPIC) is also proposed. Simulation results show that the analytical results are reasonably accurate and the SNC-NLMS AMPIC outperforms the NLMS-based one, if the algorithm parameters are properly chosen.