Skip to main content
SpringerLink
Log in

Capacity and power control for CDMA microcells

  • Published:
Wireless Networks Aims and scope Submit manuscript

Abstract

Capacity and power control issues are considered for urban CDMA microcells that operate on channels characterized by log-normal shadowing and Nakagami fading. The effects of fading on the desired and interfering signals, variations in the shadow standard deviation, imperfect power control, and the requiredE b /N o for satisfactory link operation are investigated. It is shown that the reverse channel is relatively insensitive, and the forward channel very sensitive, to shadow and fading variations. Power control error is shown to significantly degrade reverse channel capacity. Twobiased forward channel power control strategies are introduced to enhance existing unbiasedbalancing forward channel power control algorithms.

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

Similar content being viewed by others

References

  1. K.S. Gilhousen, I.M. Jacobs, R. Padovani, L.A. Weaver, Jr. and C.W. III, On the capacity of a cellular CDMA system. IEEE Trans. Veh. Tech. VT-40 (1991) 303–312.

    Google Scholar 

  2. E. Kudoh and T. Matsumoto, Effects of power control error on the system user capacity of DS/CDMA cellular mobile radios, IEICE Trans. E75-B (1992) 524–529.

    Google Scholar 

  3. P. Newson and M.R. Heath, The capacity of a spread spectrum CDMA system for cellular mobile radio with consideration of system imperfections, IEEE J. Select. Areas Commun. (1994) 673–683.

  4. M.A. Mokhtar and S.C. Gupta, Capacity for cellular CDMA PCS's in Nakagami fading log-normal shadowing channels,IEEE ICUPC (1992) pp. 190–194.

  5. S. Ariyavisitakul and L.F. Chang, Signal and interference statistics of a CMDA system with feedback power control, IEEE Trans. Commun. COM-41 (1993) 1626–1634.

    Google Scholar 

  6. C.J. Chang and F.C. Ren, Downlink power control in DS/CDMA cellular mobile radio networks,IEEE ICUPC (1994) pp. 89–93.

  7. M. Zorzi, Simplified forward-link power control law in cellular CDMA, IEEE Trans. Veh. Tech. (November 1994) 1088–1093.

  8. EIA/TIA, Mobile station-base station compatability standard for dual-mode wideband spread Spectrum cellular System, Tech. Rep. IS-95, EIA/TIA (1992).

  9. S. Kozono and A. Taguchi, Mobile propagation loss and delay spread characteristics with a low base station antenna on an urban road, IEEE Trans. Veh. Tech. VT-42 (1993) 103–108.

    Google Scholar 

  10. M. Nakagam, Them distribution; a general formula of intensity distribution of rapid fading, in:Statistical Methods in Radio Wave Propagation, ed. W.G. Hoffman (Oxford Univ. Press, England, 1960).

    Google Scholar 

  11. J.-E. Berg, R. Bownds and F. Lotse, Path loss and fading models for microcells at 900 MHz,IEEE Veh. Technol. Conf. (1992) pp. 666–671.

  12. M.-J. Ho and G.L. Stüber, Co-channel interference of microcellular systems on shadowed Nakagami fading channels,IEEE Veh. Technol. Conf. (1993) pp. 568–571.

  13. I. Gradshteyn and I. Ryzhik,Tables of Integrals, Series, and Products (Academic Press, 1980).

Download references

Author information

Authors and Affiliations

  1. School of Electrical and Computer Engineering, Georgia Institute of Technology, 30332-0250, Atlanta, Georgia, USA

    Ming-Ju Ho & Gordon L. Stüber

Authors
  1. Ming-Ju Ho
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Gordon L. Stüber
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

This research has been supported by BNR Inc.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Ho, MJ., Stüber, G.L. Capacity and power control for CDMA microcells. Wireless Netw 1, 355–363 (1995). https://doi.org/10.1007/BF01200852

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01200852

Keywords

Search

Navigation