Skip to main content
SpringerLink
Log in

Interference and Complexity Reduction in Multi-stage Multi-user Detection in DS-CDMA

  • Published:
Wireless Personal Communications Aims and scope Submit manuscript

Abstract

Multi-stage parallel interference cancellation (PIC) technique gives good performance compared to successive interference cancellation (SIC) method, but biased decision statistic and complexity problems are raised due to imperfect estimation of multiple access interference (MAI) as number of stages increases. partial parallel interference cancellation (PPIC) technique is proposed to cancel the interference partially stage by stage to overcome biased problem. The complexity reduction for PIC detection is based on the convergence nature of interference cancellation which is called the difference PIC (D-PIC) detection technique. In this paper we combine (PPIC and DPIC) these two techniques and propose a multi-stage multi-user (PD-PIC) detector for performance improvement and complexity reduction compared to conventional PIC detector. The performance is degraded as the number of users increases in each technique.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15

Similar content being viewed by others

References

  1. Pickholtz, R., Schilling, D., & Milstein, L. (May 1982). Theory of spread-spectrum communications A tutorial. IEEE Transactions on Communications, 30, 855–884.

  2. Moshavi, S. (1996). Multiuser detection for DS-CDMA communications. IEEE Communications Magazine, 34, 132–136.

    Article  Google Scholar 

  3. Khairnar, K., & Nema, S. (December 2005). Comparison of multi-user detectors of DS-CDMA system. In Proceedings of World Academy of Science, Engineering and Technology (Vol. 10, pp. 1585–1588).

  4. Varanasi, M., & Aazhang, B. (Apr. 1990). Multistage detection in asynchronous code-division multiple-access communications. IEEE Transactions on Communications, 38, 509–519.

  5. Correal, S., Buehrer, R., & Woerner, D. (April 1999). A DSP-based DS-CDMA Multiuser Receiver Employing Partial Parallel Interference Cancellation. IEEE Journal on Selected Areas in Communications, 17(4), 613–630.

  6. Verdu, S. (1998). Multiuser detection. Cambridge: Cambridge University Press.

    MATH  Google Scholar 

  7. Ravidrababu, J., & Krishna Rao, E. (2012). Performance analysis and comparison of linear multi-user detectors in DS-CDMA system. International Journal of Electronics and Communication Engineering and Technology, 3(1), 229–243.

    Google Scholar 

  8. Divsalar, D., Simon, M. K., & Raphaeli, D. (Feb. 1998). Improved parallel interference cancellation for CDMA. IEEE Transactions on Communications, 46, 258–268.

  9. Fantacci, R. (July 1999). Proposal of an interference cancellation receiver with low complexity for DS/CDMA mobile communications systems. IEEE Transactions on Vehicular Technology, 48, 1039–1046.

  10. Weng, J. F., Xue, Q., Legoc, T., & Tahar, S. (1999). Multistage interference cancellation with diversity reception for asynchronous QPSK DS/CDMA systems over multipath fading channels. IEEE Journal on Selected Areas in Communications, 17, 2162–2180.

    Article  Google Scholar 

  11. Guo, D., Rasmussen, L., Sun, S., & Lim, T. (2000). A matrix-algebraic approach to linear parallel interference cancellation. IEEE Journal on Selected Areas in Communications, 48, 152–161.

    Google Scholar 

  12. Rasmussen, L. (2000). On ping-pong effects in linear- interference cancellation for CDMA. In Proceedings on IEEE ISSSTA (pp. 348–352).

  13. Bhashyam, Rajagopal, S., Cavallaro, R., & Aazhang, B. (July 2002). Real-time algorithms and architectures for multiuser channel estimation and detection in wireless base-station receivers. IEEE Transactions on Wireless Communications, 1(3), 468–479.

  14. Trichard, L. G. F. (May 2005). Optimal multistage linear multiuser receivers. IEEE Transaction on Wireless Communication, 4(3), 1092–1101

  15. Ravidrababu, J., & Krishna Rao, E. V. (November-2012). Performance Analysis and comparison of spreading codes in Linear Multi-User Detectors for DS-CDMA system. WSEAS Transactions on Communications, 11(11), 427–436

  16. Zoubir, A. M., & Lane-Glover, A. T. (2001). Multiuser detection in impulsive noise. In Proceedings of the 11th IEEE Workshop on Statistical Signal Processing (pp. 26–29).

  17. Moshavi, S., Kanterakis, E. G., & Schilling, D. L. (1996). Multistage linear receivers for DS-CDMA systems. International Journal of Wireless Information Networks, 3(1), 1–17.

    Article  Google Scholar 

  18. Ravidrababu, J., & Krishna Rao, E. V. (April 2013). Performance analysis and performance analysis, improvement and complexity reduction in multi-stage multi-user detector with parallel interference cancellation for DS-CDMA CDMA system Using odd kasami sequence. WSEAS Transactions on Communications, 12(4), 133–142

Download references

Acknowledgments

I would like to thank the following professors for their support and advice during the research work: Dr.M.Madhavi Latha, Dr.P.Chandrasekar Reddy, Dr.L.Pratap Reddy and Dr.D Srinivasa Rao.

Author information

Authors and Affiliations

  1. E.C.E Department, P.V.P. Siddhartha Institute of Technology, Vijayawada, Andhra Pradesh, India

    J. Ravindrababu

  2. E.C.E Department, K.L. University, Vaddeswaram, Guntur, Andhra Pradesh, India

    E. V. Krishna Rao

  3. E.C.E Department, V.R. Siddhartha Engineering College, Vijayawada, Andhra Pradesh, India

    Y. Raja Rao

Authors
  1. J. Ravindrababu
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. E. V. Krishna Rao
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Y. Raja Rao
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to J. Ravindrababu.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Ravindrababu, J., Krishna Rao, E.V. & Raja Rao, Y. Interference and Complexity Reduction in Multi-stage Multi-user Detection in DS-CDMA. Wireless Pers Commun 79, 1385–1400 (2014). https://doi.org/10.1007/s11277-014-1935-4

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11277-014-1935-4

Keywords

Search

Navigation