ETRI Journal

  • 제24권3호
  • /
  • Pages.239-246
  • /
  • 2002
  • /
  • 1225-6463(pISSN)
  • /
  • 2233-7326(eISSN)
한국전자통신연구원 (Electronics and Telecommunications Research Institute)
권호 표지

A Non-Canonical Linearly Constrained Constant Modulus Algorithm for a Blind Multiuser Detector

  • Jiang, Hong-Rui (Telecommunication Laboratory, Department of Electronic Engineering, Inha University) ;
  • Kwak, Kyung-Sup (Telecommunication Laboratory, Department of Electronic Engineering, Inha University)
  • 투고 : 2001.10.06
  • 발행 : 2002.06.30
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초록

We investigate an alternative blind adaptive multiuser detection scheme based on a non-canonical linearly constrained constant modulus (LCCM) criterion and prove that, under the constrained condition, the non-canonical linearly constrained constant modulus algorithm (LCCMA) can completely remove multiple -access interference. We further demonstrate that the non-canonical LCCM criterion function is strictly convex in the noise-free state, and that under the constrained condition, it is also strictly convex even where small noise is present. We present a simple method for selecting the constant as well as a stochastic gradient algorithm for implementing our scheme. Numerical simulation results verify the scheme's efficiency.

키워드

참고문헌

  1. Proc.of the IEEE v.86 Blind Adaptive Interference Suppression for Direct-Sequence CDMA Madhow, U.
  2. IEEE Trans. Acoustics, Speech,Signal Proc. v.31 A New Approach to Multipath Correction of Constant Modulus Signals Treichler, J.R.;Agee, B.G.
  3. IEEE Trans. Information Theory v.44 Relationships between the Constant Modulus and Wiener Receivers Zeng, H.H.;Tong, L.;Johnson, C.R.
  4. Proc. of the IEEE v.86 Blind Equalization Using the Constant Modulus Criterion: a Review Johnson, C.R. Jr.;Schniter, P.;Endres, T.J.;Behm, J.D.;Brown, D.R.;Casas, R.A.
  5. Proc. 25th Conf. on Information Sciences and Systems Anchored Blind Equalization Verdu, S.;Anderson, B.;Kennedy, R.
  6. Proc. Int’l Symp. on Information Theory A Method of Multidimensional Equalization Oda, H.;Sato, Y.
  7. IEEE Comm. Lett. v.2 no.Aug. A Linearly Constrained Constant Modulus Approach to Blind Adaptive Multiuser Interference Suppression Miguez, J.;Castedo, L.
  8. IEEE Comm. Lett. v.4 no.Sept. Closed-Form Analysis of Linearly Constrained CMA-Based Blind Multiuser Detector Tang, Z.;Yang, Z.;Yao, Y.
  9. IEEE Trans. Information Theory v.41 no.July Blind Adaptive Multiuser Detection Honig, M.L.;Mdahow, U.;Verdu, S.
  10. IEEE Trans. Signal Processing v.45 no.Jan. Fractionally Spaced Equalization Using CMA: Robustness to Channel Noise and Lack of Disparity Fijalkow, I.;Touzni, A.;Treichler, J.R.
  11. APCC/OECC99 Constrained Constant Modulus Algorithm in Multiuser Detection Wang Yi;Han Cunwu;Wu Weiling