A Downlink SS-OFDM-F/TA Packet Data System Employing Multi-User Diversity

  • R. Novak
  • W. A. Krzymien

Abstract

A spread spectrum orthogonal frequency division multiplexing (SS-OFDM) option for the downlink of a high data rate packet based system is proposed and discussed in this paper. Frequency and time division multiplexing techniques are used to allocate resources for packet transmission. Adaptive modulation, proportionally fair scheduling, and hybrid ARQ are used to increase throughput and reduce delay. Cell throughput results are presented.

Keywords

Time Slot Orthogonal Frequency Division Multiplex Orthogonal Frequency Division Multiplex System Turbo Code Guard Interval 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. [1]
    ETSI EN 300 401 v1.3.3, “Radio Broadcasting Systems; digital audio broadcasting (DAB) to mobile, portable and fixed receivers”, May 2001.Google Scholar
  2. [2]
    ETSI EN 300 744 v1.2.1, “Digital video broadcasting (DVB); framing structure, channel coding and modulation for digital terrestrial television”, July 1999.Google Scholar
  3. [3]
    R. Grünheid, H. Rohling, “ Adaptive modulation and Multiple access for the OFDM transmission technique”, Wireless Personal Communications, vol. 13, no. 1, pp. 5–13, May 2000.CrossRefGoogle Scholar
  4. [4]
    R. Grünheid, H. Rohling, “Performance of an OFDM-TDMA mobile communication system”, in Proc. 46 m VTC, Atlanta, GA, pp. 1589–1593, Apr/May. 1996.Google Scholar
  5. [5]
    S. K. Lai et al, “Adaptive tracking of optimal bit and power allocation for OFDM systems in time-varying channels”, in Proc. WCNC’99, New Orleans, LA., Sept. 1999.Google Scholar
  6. [6]
    C. Y. Wong et al, “Multiuser OFDM with adaptive subcarrier, bit and power allocation”, IEEE JSAC, vol. 17, no. 10, Oct. 1999.Google Scholar
  7. [7]
    T. Keller L. Hanzo, “Adaptive multicarrier modulation: a convenient framework for frequency-time processing in wireless communications”, IEEE Proceedings, pp. 611–640, May 2000.Google Scholar
  8. [8]
    P. Bender et al, “CDMA/HDR: A bandwidth efficient high speed data service for nomadic users”, IEEE Comm. Mag., pp. 70–77, July 2000.Google Scholar
  9. [9]
    J. M. Holtzman, “CDMA forward link waterfilling power control”, in Proc. VTC2000 Spring, May 2000.Google Scholar
  10. [10]
    A. Jalali, et al, “Data throughput of CDMA-HDR a high efficiency-high data rate personal communication wireless system”, in Proc. VTC2000 Spring, May 2000.Google Scholar
  11. [11]
    Y. Jou, “Developments in third generation (3G) CDMA technology”, in Proc. ISSSTA’2000, NJ, pp. 460–464, Sept. 2000.Google Scholar
  12. [12]
    S. Kaiser and L. Papke, “Optimal detection when combining OFDM-CDMA with convolutional and turbo coding”, in Proc. ICC’96, Dallas, TX, pp-343–348, June 1996.Google Scholar
  13. [13]
    ITU-R M. 1225, “Guidelines for evaluation of radio transmission technologies for IMT-2000”, 1997.Google Scholar
  14. [14]
    T. S. Rappaport, “Wireless communications: principles and practice”, Prentice Hall, NJ, 1996.Google Scholar

Copyright information

© Springer Science+Business Media New York 2002

Authors and Affiliations

  • R. Novak
    • 1
  • W. A. Krzymien
    • 1
  1. 1.University of Alberta and TRLabsEdmontonCanada

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