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一種聯(lián)合均衡和多用戶檢測(cè)的SDCMA盲算法

居美艷 酆廣增

居美艷, 酆廣增. 一種聯(lián)合均衡和多用戶檢測(cè)的SDCMA盲算法[J]. 電子與信息學(xué)報(bào), 2006, 28(8): 1403-1407.
引用本文: 居美艷, 酆廣增. 一種聯(lián)合均衡和多用戶檢測(cè)的SDCMA盲算法[J]. 電子與信息學(xué)報(bào), 2006, 28(8): 1403-1407.
Ju Mei-yan, Feng Guang-zeng. A Blind Joint Equalization and Multiuser Detection SDCMA Algorithm[J]. Journal of Electronics & Information Technology, 2006, 28(8): 1403-1407.
Citation: Ju Mei-yan, Feng Guang-zeng. A Blind Joint Equalization and Multiuser Detection SDCMA Algorithm[J]. Journal of Electronics & Information Technology, 2006, 28(8): 1403-1407.

一種聯(lián)合均衡和多用戶檢測(cè)的SDCMA盲算法

A Blind Joint Equalization and Multiuser Detection SDCMA Algorithm

  • 摘要: 該文提出了用于MC DS-CDMA系統(tǒng)中的兩種SDCMA(最陡下降常模算法)盲檢測(cè)方法,一種是SDCMA盲均衡算法,在此基礎(chǔ)上,提出了另一種聯(lián)合均衡和多用戶檢測(cè)的SDCMA盲算法。同時(shí)還將這兩種算法與基于子空間的MMSE(最小均方誤差)盲檢測(cè)算法進(jìn)行比較。仿真結(jié)果表明,這兩種SDCMA算法的BER(誤比特率)性能均優(yōu)于子空間法,而且聯(lián)合均衡和多用戶檢測(cè)的SDCMA盲算法利用同時(shí)對(duì)均衡權(quán)值向量和多用戶檢測(cè)器向量進(jìn)行自適應(yīng)更新,能較大程度地改善系統(tǒng)性能,是這3種盲算法中性能最佳的一個(gè)。
  • Prasad R, Hara S. Overview of multicarrier CDMA. IEEE Commun. Mag., 1997, 35(12): 126-133.[2]Yang L L, Hanzo L. Multicarrier DS-CDMA: A multiple access scheme for ubiquitous broadband wireless communications. IEEE Commun. Mag., 2003, 41(10): 116-124.[3]Godard D. Self-recovering equalization and carrier tracking in two-dimensional data communication systems[J].IEEE Trans. on Communications.1980, 28(11):1867-1875[4]Johnson R Jr, Schniter P, Endres T J, Behm J D, Brown D R, Casas R A. Blind equalization using the constant modulus criterion: A review[J].Proc. IEEE.1998, 86(10):1927-[5]Lee Wookwon, Vojcic B R, Pickholtz R L. Constant modulus algorithm for blind multiuser detection. IEEE 4th International Symposium on Spread Spectrum Techniques and Applications Proceedings, Mainz, Germany, 22-25 Sept., 1996, vol.3: 1262-1266.[6]Xu Changjiang, Feng Guangzeng. Blind multiuser detector using nominal sequences[J].Electronics Letters.2000, 36(6):572-573[7]Xue Qiang, Jiang Xiaobing, Wu Weiling. A new CMA-based blind adaptive multiuser detection. Vehicular Technology Conference, 2001, Rhodes, Greece, 6-9 May, 2001, vol.3:1775-1778.[8]Kamel R E, Bar-Ness Y. Anchored blind equalization using the constant modulus algorithm[J].IEEE Trans. on Circuits and Systems.1997, 44(5):397-403[9]Arasaratnam P, Zhu S, Constantinides A G. Fast convergent multiuser constant modulus algorithm for use in multiuser DS-CDMA environment[J].Proceedings(ICASSP02), IEEE International Conference on Acoustics, Speech, and Signal Processing, Orlando, Florida, USA, 13-17 May.2002, vol.3:2761-2764[10]Feng Aigang, Yin Qinye, Zhang Jianguo, Deng Ke. Blind channel estimation in synchronous MC-CDMA system with considerationof carrier offset compensation. Vehicular Technology Conference, Birmingham Jefferson Civic Center, Birmingham, Alabama, USA, 6-9 May, 2002, vol.2: 660-664.[11]Kim Dong-Joe, Kim Joo-Eung, Kang Chang-Eon. The new approach to mitigate MAI in MC-CDMA systems. Vehicular Technology Conference, Amsterdam, the Netherland, 19-22 Sept., 1999, vol.1: 171-175.[12]Godard D. Self-recovering equalization and carrier tracking in two-dimensional data communication systems[J].IEEE Trans. on Communications.1980, 28(11):1867-1875[13]Johnson R Jr, Schniter P, Endres T J, Behm J D, Brown D R, Casas R A. Blind equalization using the constant modulus criterion: A review[J].Proc. IEEE.1998, 86(10):1927-[14]Namgoong J, Wong T F, Lehnert J S. Subspace multiuser detection for multicarrier DS-CDMA[J].IEEE Trans. on Communications.2000, 48(11):1897-1908
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出版歷程
  • 收稿日期:  2005-06-08
  • 修回日期:  2005-11-07
  • 刊出日期:  2006-08-19

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