Journal of Communications and Networks

  • 제5권3호
  • /
  • Pages.187-196
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  • 2003
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  • 1229-2370(pISSN)
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  • 1976-5541(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

Error Control Coding and Space-Time MMSE Multiuser Detection in DS-CDMA Systems

  • Hamouda, Walaa (Department of Electrical and Computer Engineering, Concordia University) ;
  • McLane, Peter J. (Department of Electrical and Computer Engineering, Queen′s University)
  • 발행 : 2003.09.01
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초록

We consider the use of error control coding in direct sequence-code-division multiple access (OS-COMA) systems that employ multiuser detection (MUO) and space diversity. The relative performance gain between Reed-Solomon (RS) code and convolutional code (CC) is well known in [1] for the single user, additive white Gaussian noise (AWGN) channel. In this case, RS codes outperform CC's at high signal-to-noise ratios. We find that this is not the case for the multiuser interference channel mentioned above. For useful error rates, we find that soft-decision CC's to be uniformly better than RS codes when used with DS-COMA modulation in multiuser space-time channels. In our development, we use the Gaussian approximation on the interference to determine performance error bounds for systems with low number of users. Then, we check their accuracy in error rate estimation via system's simulation. These performance bounds will in turn allow us to consider a large number of users where we can estimate the gain in user-capacity due to channel coding. Lastly, the use of turbo codes is considered where it is shown that they offer a coding gain of 2.5 dB relative to soft-decision CC.

키워드

참고문헌

  1. S. Wicker, Error Control Systemsfor DigitaI Communication and Storage, Prentice Hall 1995
  2. Y. Yeh and D. Reudink, 'EfBcient spectrum utilization for mobile radio systems using space diversity', IEEE Trans. Commuti.voLSO, pp447-455, Mar. 1982
  3. S. Miller and S. Schwartz, 'Integrated spatial-temporal detectors for asynchronous Gaussian multiple-access channels,' IEEE Trans. Commun., vol. 47, no. 9, PP. 2356-2374,Sept. 1999
  4. X. Wang and H. V. Poor, 'Space-time multiuser detection in multipath CDMA channels,' IEEE Trans. Signal. Processing, vol. 47, no. 9, pp. 2356-2374, Sept. 1999 https://doi.org/10.1109/78.782180
  5. P. Frenger, P. Orten and T. Ottosson, 'Code-spread CDMA using maximum free distance low-rate convolutional codes,' IEEE Trans. Commun., vol. 48, no. 1, pp. 135-144, Jan. 2000 https://doi.org/10.1109/26.818881
  6. Y. Chen, K. Letaief, and J. Chuang, 'Soft-output equalization and TCM for wireless personal communication systems,' IEEE J. Setect. Areas Commun., vol. 45, pp. 1161-1172, May 1997
  7. V. Kuhn, 'Evaluating the performance of turbo codes and turbo-coded modulation in a DS-CDMA environment,' IEEE J. Select. Areas Commun., vol. 17, pp. 2138-2147, Dec. 1999 https://doi.org/10.1109/49.814830
  8. Y. Wong and K. Lataief, 'Concatenated coding for DS/CDMA transmission in wireless communications,' IEEE Trans. Commun., vol. 48, no. 12, pp.1965-1969, Dec.2000 https://doi.org/10.1109/26.891202
  9. S. Kim, B. Yi. and R. Pickholtz, 'Asymptotic performance of ML sequence estimator using an array of antennas for coded synchronous multiuser DS-CDMA systems,' J. Commun. Networks, vol. 1, no. 3, PP. 182-188, Sept. 1996
  10. M. Reed and P. Alexander, 'Iterative multiuser detection using antenna arrays and FEC on multipath channels', 1EEEJ. Setect. Areas Commun., vol.17,no.12,pp.2082-2089, Dec.1999 https://doi.org/10.1109/49.814811
  11. T. Giallorenzi and S. Wilson, 'Suboptimum multiuser receivers for convolutionally coded asynchronous DS-CDMA systems,' IEEE Trans. Commun., vol. 44, no. 9, pp. 1183-1196, Sept. 1996 https://doi.org/10.1109/26.536924
  12. W. Hamouda, Performance Anatysis of Space-Time Multiuser Detection with Error Correction Coding in CDMA Communication Systems, Ph.D thesis, Queen's University, Kingston, Ontario, Canada, Apr. 2002
  13. S. Uppala and J. Sahr, 'Computing probability of errors of linear multiuser detectors in white Gaussian noise and Rayleigh fading channels,' in Proc. ICC' 98
  14. W. Hamouda and P. McLane, 'Performance analysis ofSpace-time MMSE detection in synchronous multiuser DS-CDMA,' in Proc. ISSSTA'OO
  15. H. V. Poor and S. Verdu, 'Probability of error in MMSE multiuser detection,' IEEE Trans. Inform, theory, vol. 43, no. 3, pp. 858-871, May 1997 https://doi.org/10.1109/18.568697
  16. G. Clark and J. Cain, Error-Correctine Codins for Digital Communications. Plenum Press, New York, 1981
  17. A. Viterbi and J. Omura, Principles of Digital Communication and Coding, McGraw-Hill Publishing, 1979
  18. Y. Wu, http://www.ee.vl.edu/yufei/turbo.html, June 1999
  19. C. Berrou and A. Glavieux, 'Near Shannon limit errorcorrection codingand decoding: Turbo codes,' in Proc. ICC'93
  20. J. Heller and I. Jacobs, 'Viterbi decoding for satellite and space communication,' IEEE Trans. Commun., vol. 44, no. 5, pp. 835-848, Oct. 1971
  21. S. Benedetto and G. Montorsi, 'Design of parallel concatenated convolutional codes,' IEEE Trans. Commun., vol. 44, no. 5, PP. 591-600, May1996 https://doi.org/10.1109/26.494303
  22. P. Robertson, E. Villebrun, and P. Hoeher, 'A comparison of optimaland suboptimal MAP decoding algorithms in the log domain,' in Proc./CC'95
  23. L. Hanzo, T.H. Liew, and B.L. Yeap, Turbo Coding, Turbo Equatisationand Space-Time Coding for Transmission over Fading Channel, John Wiley & Sons, Inc., U.K, 2002
  24. J. Proakis, Digital Communications, McGraw-Hill Publishing, 1995
  25. A. Barbosa and S. Miller, 'Adaptive detection of DS/CDMA signals infading channels', IEEE Trans. Commun., vol. 46, no. 1, PP. 115-124, Jan.1998 https://doi.org/10.1109/26.655409