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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)

Abstract

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.

Keywords

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.

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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

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