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Analysis of Asynchronous Band-Limited DS-CDMA with MMSE Multiuser Detector over Generalized-k Fading Channels

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Abstract

In this paper, we investigate bit-error-rate (BER) performance of a minimum mean-squared error (MMSE) multiuser receiver for asynchronous band-limited direct- sequence code-division multiple-access (DS-CDMA) systems. We focus on the BER performance in the presence of multitone jamming (MTJ) over frequency-selective multipath fading channels. We consider the generalized-K fading model in our analysis, as it can model a large spectrum of fading-channel characteristics. We also analyze the effects of band- limited pulse shape on the BER performance of the system. Multipath diversity based on the maximal-ratio combining (MRC) scheme is employed to combat fading effects. Our analytical expressions are valid for arbitrary diversity levels and fading parameters. Spectrum raised cosine (SRC) and Beaulieu–Tan–Damen (BTD) pulse shapes are employed for numerical analysis. Numerical results show that in the presence of MTJ and under various channel conditions, the MMSE based receiver gives better BER performance than the one without it. Moreover, the system with BTD pulses outperforms the one with SRC pulses.

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References

  • Verdu S. (1986) Minimum probability of error for asynchronous Gaussian multiple access channels. IEEE Transactions on Information Theory 32: 85–95

    Article  MATH  MathSciNet  Google Scholar 

  • Xie Z., Short R.T., Rushforth C.K. (1990) A family of suboptimal detectors for coherent multiuser communications. IEEE Journal on Selected Areas in Communications 8: 683–690

    Google Scholar 

  • Giorgetti A., Chiani M., Win M.Z. (2005) The effect of narrowband interference on wideband wireless communication systems. IEEE Transactions on Communications 53: 2139–2149

    Article  Google Scholar 

  • Papadias C.B., Huang H. (2001) Linear space-time multiuser detection for multipath CDMA channels. IEEE Journal on Selected Areas in Communications 19: 254–265

    Article  Google Scholar 

  • Yoon Y.C. (2002) An improved Gaussian approximation for probability of bit-error analysis of asynchronous bandlimited DS-CDMA systems with BPSK spreading. IEEE Transactions on Wireless Communications 1: 373–382

    Article  Google Scholar 

  • Kumbasar V., Kucur O. (2007) ICI reduction in OFDM systems by using improved sinc power pulse. Digital Signal Processing 17(6): 997–1006

    Article  Google Scholar 

  • Le Khoa N. (2008) Insights on ICI and its effects on performance of OFDM systems. Digital Signal Processing 18(5): 876–884

    Google Scholar 

  • Shankar P.M. (2004) Error rates in generalized shadowed fading channels. Wireless Personal Communications 28: 233–238

    Article  Google Scholar 

  • Beaulieu N.C., Sivanesan K. (2006) BER performance of bandlimited DS-CDMA systems in Nakagami fading. IEEE Transactions on Communications 54: 2075–2084

    Article  Google Scholar 

  • Verdu S. (1998) Multiuser detection. Cambridge Univ. Press, Cambridge, U.K.

    MATH  Google Scholar 

  • Simon M.K., Alouini M.S. (2000) Digital communication over fading channels. Wiley, New York

    Book  Google Scholar 

  • Proakis J.G. (2001) Digital communiations (4th ed). McGrawHill, New York

    Google Scholar 

  • Hamouda, W., & McLane, P. (2001). Space–time MMSE multiuser detection in multipath channels with RS coding. In Proc. IEEE ICC 2001 (Vol. 4, pp. 1177–1181), Helsinki, Finland.

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Authors and Affiliations

  1. School of EEE, Nanyang Technological University, Nanyang Avenue, Singapore, 639798, Singapore

    Haider Mehdi, Kah Chan Teh & Kwok H. Li

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  1. Haider Mehdi
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  2. Kah Chan Teh
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  3. Kwok H. Li
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Correspondence to Kwok H. Li.

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Mehdi, H., Teh, K.C. & Li, K.H. Analysis of Asynchronous Band-Limited DS-CDMA with MMSE Multiuser Detector over Generalized-k Fading Channels. Wireless Pers Commun 53, 581–590 (2010). https://doi.org/10.1007/s11277-009-9704-5

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  • DOI: https://doi.org/10.1007/s11277-009-9704-5

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