Robust time domain channel estimation for MIMO-OFDMA Downlink System

  • B. Le Saux
  • M. Hélard
  • R. Legouable
Part of the Lecture Notes Electrical Engineering book series (LNEE, volume 1)


This paper investigates a new time domain channel estimation for MIMO OFDMA downlink systems. Compared to classical frequency domain channel estimation, time approach allows improvements in a multi-antenna system. Nevertheless, the presence of null carriers in the spectrum leads to performance degradation because of ”border effect” phenomenon. An improved time domain channel estimation for MIMO-OFDMA system is proposed for downlink transmission and compared to classical channel estimation methods. Besides, this channel estimation process can be applied in any SISO and/or MIMO multicarrier transmission.


Channel Estimation Training Sequence Orthogonal Frequency Division Multiple Access Pilot Symbol OFDM Symbol 
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Copyright information

© Springer 2007

Authors and Affiliations

  • B. Le Saux
    • 1
  • M. Hélard
    • 1
  • R. Legouable
    • 1
  1. 1.France Telecom R&D DivisionBroadband Radio Access laboratoryCesson-SévignéFrance

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