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Volume 28 Issue 8
Sep.  2010
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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.

A Blind Joint Equalization and Multiuser Detection SDCMA Algorithm

  • Received Date: 2005-06-08
  • Rev Recd Date: 2005-11-07
  • Publish Date: 2006-08-19
  • This paper suggests two Steepest Decreasing Constant Modulus Algorithm (SDCMA) blind detection schemes for MultiCarrier Direct Sequence-Code Division Multiple Access (MC DS-CDMA) systems, one of which is the SDCMA blind equalization, and based on the former, the other of which is proposed, i.e., the blind joint equalization and multiuser detection SDCMA algorithm. The two SDCMA schemes and subspace-based Minimum Mean-Squared Error (MMSE) detection are compared in the paper. The simulation results show that Bit Error Rate (BER) performances of the two SDCMA schemes are both superior to that of the subspace-based scheme, and the joint SDCMA scheme, which takes advantage of renewing the equalization weight vector and the multiuser detector vector at the same time, greatly improves system performance and is the best of the three schemes.
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  • 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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