The Cellular Alamouti Technique

  • Simon Plass
  • Ronald Raulefs
Conference paper
Part of the Lecture Notes Electrical Engineering book series (LNEE, volume 1)


This paper handles a transmit diversity technique to provide adequate performances at the cell border in a next generation cellular downlink of a mobile communications system. The used technique is based on the Alamouti scheme, and therefore, we call the scheme cellular Alamouti technique (CAT). The CAT is exemplarily applied to an orthogonal frequency division multiplexing access (OFDMA) which is a promising candidate for future communications systems. For improving the performance at the cell borders, the CAT exploits resource management to apply the Alamouti technique and to avoid inter-cellular interference using both adjacent base stations to transmit the desired signal. The influence of the CAT to a cellular OFDMA system is investigated for different resource management strategies. Simulation results show a significant performance improvement at the cell border by using CAT. The performance depends on the resource allocations of the chosen sub-carriers. Nevertheless, CAT is even robust to high-speed scenarios. Furthermore, investigations regarding the system throughput with different modulation alphabets offer a reliable and flexible adaptation to different mobile terminal requests.


Channel State Information Mobile Terminal Cell Border OFDM Symbol Radio Resource Management 
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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  1. [1]
    Gordon L. Stüber. Principles of Mobile Communication. Kluwer Academic Publishers, 2nd edition, 2002.Google Scholar
  2. [2]
    Daniel Wong and Teng J. Lim. Soft handoffs in CDMA mobile systems. IEEE Personal Communications, 36:6–15, December 1997.Google Scholar
  3. [3]
    S. M. Alamouti. A simple transmit diversity technique for wireless communications. IEEE Journal of Select Areas Communications, 16(8):1451–1458, October 1998.CrossRefGoogle Scholar
  4. [4]
    Manabu Inoue, Takeo Fujii, and Masao Nakagawa. Space time transmit site diversity for OFDM multi base station system. In Proceedings IEEE Mobile and Wireless Communication Networks (MWCN 2002), Stockholm, Sweden, pages 40–34, September 2002.Google Scholar
  5. [5]
    H. Sari and G. Karam. Orthogonal frequency-division multiple access and its application to CATV networks. European Transactions on Telecommunications (ETT), 9(6):507–516, November–December 1998.CrossRefGoogle Scholar
  6. [6]
    IEEE 802.11-03/940r2. IEEE P802.11 wireless LANs, TGn channel models, January 2004.Google Scholar
  7. [7]
    Vahid Tarokh, Hamid Jafarkhani, and A. Robert Calderbank. Space-time block codes from orthogonal designs. IEEE Transactions on Information Theory, 45(5):1456–1467, July.MATHGoogle Scholar
  8. [8]
    IST-2003-507581 WINNER. Final report on identified RI key technologies, system concept, and their assessment, December 2005.Google Scholar
  9. [9]
    Shu Lin, Daniel J. Costello Jr., and Michael J. Miller. Automatic-repeat-request error-control schemes. IEEE Communications Magazine, 22(12):5–17, December 1984.CrossRefGoogle Scholar
  10. [10] Scholar
  11. [11] Scholar

Copyright information

© Springer 2007

Authors and Affiliations

  • Simon Plass
    • 1
  • Ronald Raulefs
    • 1
  1. 1.German Aerospace Center (DLR)Institute of Communications and Navigation OberpfaffenhofenWesslingGermany

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