A Decision-Aided Strategy for Enhancing Transmissions in Wireless OSTBC-Based Systems

  • Tiago M. Fernández-Caramés
  • Adriana Dapena
  • José A. García-Naya
  • Miguel González-López
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6692)


Orthogonal Space-Time Block Coding (OSTBC) allows multiple antenna wireless systems to exploit spatial and temporal diversity. When transmitting multimedia content, OSTBC-based system’s performance can be greatly enhanced through the optimization of different parameters. For instance, data rates can be improved if the overhead related to sending side information (pilot symbols) is minimized. Also, processing speed can be increased if the decoding algorithms computational load is reduced. In this paper, it is presented a decision-aided channel estimation method aimed specifically at addressing the aforementioned two issues: the method incorporates unsupervised strategies to estimate the channel without using pilot symbols and a simple decision rule to determine if channel estimation is required for each frame, what allows transceiver designers to implement techniques to avoid channel estimation.


Independent Component Analysis Channel Estimation Independent Component Analysis Channel Matrix Blind Source Separation 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Gesbert, D., Shafi, M., Shan-Shiu, D., Smith, P.J., Naguib, A.: From theory to practice: an overview of MIMO space-time coded wireless systems. IEEE Journal on Selected Areas in Communications 21, 281–302 (2003)CrossRefGoogle Scholar
  2. 2.
    Paulraj, A.J., Papadias, C.B.: Space-time processing for wireless communications. IEEE Signal Processing Magazine 14(6), 49–83 (1997)CrossRefGoogle Scholar
  3. 3.
    Alamouti, S.M.: A simple transmit diversity technique for wireless communications. IEEE Journal on Selected Areas in Communications 16, 1451–1458 (1998)CrossRefGoogle Scholar
  4. 4.
    Tarokh, V., Jafarkhani, H., Calderbank, A.R.: Space-time block codes from orthogonal designs. IEEE Transactions on Information Theory 45(5), 1456–1467 (1999)MathSciNetCrossRefzbMATHGoogle Scholar
  5. 5.
    Larsson, E.G., Stoica, P.: Space-Time Block Coding for Wireless Communications. Cambridge University Press, Cambridge (2003)CrossRefzbMATHGoogle Scholar
  6. 6.
    IEEE, IEEE Standard for Information technology–Telecommunications and information exchange between systems–Local and metropolitan area networks–Specific requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 5: Enhancements for Higher Throughput (October 2009)Google Scholar
  7. 7.
    IEEE, IEEE 802.16-2009: Air interface for fixed broadband wireless access systems (May 2009)Google Scholar
  8. 8.
    Zarzoso, V., Nandi, A.K.: Blind source separation, ch. 4, pp. 167–252. Kluwer Academic Publishers, Dordrecht (1999)Google Scholar
  9. 9.
    Haykin, S.: Neural Networks A Comprehensive Foundation. Macmillan College Publishing Company, New York (1994)zbMATHGoogle Scholar
  10. 10.
    Cardoso, J.-F., Souloumiac, A.: Blind beamforming for non-Gaussian signals. IEE Proceedings F 140(46), 362–370 (1993)Google Scholar
  11. 11.
    Comon, P., Jutten, C.: Handbook of Blind Source Separation, Independent Component Analysis and Applications. Academic Press, London (2010)Google Scholar
  12. 12.
    Beres, E., Adve, R.: Blind channel estimation for orthogonal STBC in MISO systems. In: Proc. of Global Telecommunications Conference, vol. 4, pp. 2323–2328 (November 2004)Google Scholar
  13. 13.
    Vía, J., Santamaría, I., Pérez, J., Ramírez, D.: Blind decoding of MISO-OSTBC systems based on principal component analysis. In: Proc. of International Conference on Acoustic, Speech and Signal Processing, vol. IV, pp. 545–549 (2006)Google Scholar
  14. 14.
    Dapena, A., Pérez-Iglesias, H., Zarzoso, V.: Blind Channel Estimation Based on Maximizing the Eigenvalue Spread of Cumulant Matrices in (2 x 1) Alamouti’s Coding Schemes. In: Wireless Communications and Mobile Computing, Article published online (October 5, 2010) (accepted) doi:10.1002/wcm.992Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Tiago M. Fernández-Caramés
    • 1
  • Adriana Dapena
    • 1
  • José A. García-Naya
    • 1
  • Miguel González-López
    • 1
  1. 1.Departamento de Electrónica e SistemasUniversidade da CoruñaA CoruñaSpain

Personalised recommendations