Wireless HDTV channel estimator using LMS criterion to Yacoub's distributions

  • Authors:

  • Sandro Adriano Fasolo;Jaime Silva Júnior

  • Affiliations:

  • Department of Telecommunications, National Institute of Telecommunications, Santa Rita do Sapucaí, MG, Brasil;Department of Telecommunications, National Institute of Telecommunications, Santa Rita do Sapucaí, MG, Brasil

  • Venue:
  • ICECS'05 Proceedings of the 4th WSEAS international conference on Electronics, control and signal processing
  • Year:
  • 2005

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Abstract

This paper presents an estimator to wireless HDTV (High Definition Television) using the LMS (Least Mean Square) Criterion. This method evaluates the parameters κ - µ or η - µ for Yacoub Distribution and the parameter m for Nakagami Distribution from simulated data. These distributions model the fast fluctuation of envelope of a received signal composed of clusters of multipath waves propagating in a non-homogeneous environment. The procedure to estimate these parameters uses the pdf (probability density function) obtained from received signal. The signal is generated using two fading channel simulator development by author. The results show that the Yacoub's Distributions provides a best fitting to simulated data than Nakagami-m Distribution. The Yacoub's distributions have two parameters to estimate, while the Nakagami distribution have just one parameter. The analysis of the received signal and the estimated curves confirm that there is a very good agreement between the estimated parameters from signal and the parameters used to generated the correspondent signal.