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长码DS/CDMA系统中的预优软判决多用户干扰消除

陈明 张吉林

陈明, 张吉林. 长码DS/CDMA系统中的预优软判决多用户干扰消除[J]. 电子与信息学报, 2003, 25(7): 943-948.
引用本文: 陈明, 张吉林. 长码DS/CDMA系统中的预优软判决多用户干扰消除[J]. 电子与信息学报, 2003, 25(7): 943-948.
Chen Ming, Zhang Jilin. The Preconditioned soft decision multiuser interference cancellation in long-code used DS/CDMA systems[J]. Journal of Electronics & Information Technology, 2003, 25(7): 943-948.
Citation: Chen Ming, Zhang Jilin. The Preconditioned soft decision multiuser interference cancellation in long-code used DS/CDMA systems[J]. Journal of Electronics & Information Technology, 2003, 25(7): 943-948.

长码DS/CDMA系统中的预优软判决多用户干扰消除

The Preconditioned soft decision multiuser interference cancellation in long-code used DS/CDMA systems

  • 摘要: 在长码DS/CDMA通信系统中,多级线性软判决并行多用户干扰消除(LSD-PIC)检测器的收敛性能受限于用户数,该文提出用矩阵计算的预优方法改进LSD-PIC检测器的收敛性能,克服由于系统高负载造成的LSD-PIC检测器的性能崩溃,并提出了低代价多项式预优子的概念,对零阶和一阶多项式预优子分别给出了最优系数。
  • A. Duel-Hallen, J. Holtzman, Z. Zvonar, Multiuser detection for CDMA systems, IEEE Personal Communications, 1995, 2(2), 46-58.[2]S. Moshavi, Multi-user detection for DS-CDMA communications, IEEE Comm. Magazine, 1996,34(10), 124-136.[3]D. Divsalar, M.K. Simon, D. Raphaeli, Improved parallel interference cancellation for CDMA,IEEE Trans. on Comm., 1998, COM-46(2), 258-268.[4]H. Elders-Boll, H. D. Schotten, Busboom, Efficient implementation of linear multiuser detectors for asynchronous CDMA systems by linear interference cancellation, European Transactions on Telecommunications, 1998, 9(5), 427-437.[5]D. Guo, L. K. Rasmussen, T. J. Lim, Linear parallel interference cancellation in long-code CDMA multiuser detection, IEEE J. on Selected Areas in Comm., 1999, 17(12), 2074-2081.[6]S. Moshavi, E. G. Kanterakis, D. L. Schilling, Multistage linear receivers for DS-CDMA systems,International Journal of Wireless Information Networks, 1996, 3(1), 1-17.[7]M.J. Juntti, B. Aazhang, J. O. Lilleberg, Iterative implementation of linear multiuser detectors for dynamic CDMA systems, IEEE Trans. on Comm., 1998, COM-46(4), 503-508.[8]Y. Li, M. Chen, S. Cheng, Determination of cancellation factors for soft-decision partial PIC detector in DS/CDMA systems, Electronics Letters, 2000, 36(3), 239-241.[9]P.G. Renucci, B. G. Woerner, Optimisation of soft interference cancellation for DS-CDMA,Electronics Letters, 1998, 34(8), 731-733.[10]Yousef Saad, Iterative Methods for Sparse Linear Systems, Boston, PWS Publishing Company,1996, Chapter 9.
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出版历程
  • 收稿日期:  2001-12-17
  • 修回日期:  2002-08-09
  • 刊出日期:  2003-07-19

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