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Volume 27 Issue 3
Mar.  2005
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Liu Yong-jun, Gou Yan-xin, Cheng Guo-bing, Liu Yong. MMSE Correlator Based RAKE Receiver for DS-CDMA[J]. Journal of Electronics & Information Technology, 2005, 27(3): 407-410.
Citation: Liu Yong-jun, Gou Yan-xin, Cheng Guo-bing, Liu Yong. MMSE Correlator Based RAKE Receiver for DS-CDMA[J]. Journal of Electronics & Information Technology, 2005, 27(3): 407-410.

MMSE Correlator Based RAKE Receiver for DS-CDMA

  • Received Date: 2003-11-18
  • Rev Recd Date: 2004-04-27
  • Publish Date: 2005-03-19
  • This paper investigates the performance of a reduced rank MMSE correlator for a RAKE receiver in the context of CDMA in frequency selective multipath. The MMSE correlator based on the Correlations Subtractive Architecture (CSA) is very suit for frequency selective multipath. It is emonstrated that the standard multiuser limited RAKE receiver can achieve BER performance close to the MMSE receiver spanning multiple symbols by replacing its conventional correlator with an MMSE correlator. The CSA generates an MMSE correlator without requiring atrix inversion, thereby reducing computational complexity; this facilitates direct replacement of the standard RAKE correlator.
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  • Honig M L, Goldstein J S. Adaptive reduced-rank residual correlation algorithms for DS-CDMA interference suppression. in Proc. of Asilomar, Asilomar, Jul. 1998: 1107-1110.[2]Honig M L, Poor H V. Adaptive interference suppression. In Poor, H V, Wornell, G W, editors, Wireless Communications: Signal Processing Perspectives, Englewood Cliffs, New Jersey: Prentice Hall. 1998:64-102.[3]Song Y, Roy S. Blind adaptive reduced-rank detection for DS-CDMA signals in multipath channels[J].IEEE Journal on Selected Areas in Communications.1999, 17(11):1960-1970[4]Madhow U. Blind adaptive interference suppression for direct-sequence CDMA[J].Proc. IEEE.1998, 86(10):2049-2069[5]Goldstein J S, Reed I S, Scharf L L. A multistage representation of the wiener filter based on orthogonal projections[J].IEEE Trans. on Information Theory.1998, 44(6):2943-2959[6]Honig M L, Xiao W. Large system analysis of reduced-rank linear interference suppression. Proc. 37th Annual Allerton Conference on Communications, Systems, and Computing, Allerton, 1999:23-24.[7]Myrick W L.[J].Zoltowski M D, Goldstein J S. Exploiting conjugate symmetry in power minimization based Pre-processing for GPS:reduced complexity and smoothness. Proc. of 2000 IEEE Intl Conf. on Acoustics, Speech, and Signal Processing, Istanbul,Turkey, 5-9 June.2000,:-Ricks D C, Goldstein J S. Efficient architectures for implementing adaptive algorithms. Proc. of the 2000 Antenna Applications Symposium, Allerton Park, Monticello, Illinois, September 20-22, 2000:29-41.
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