Expectation maximization based channel estimation for uplink STBC-MC-CDMA systems Yukari hat STBC-MC-CDMA si̇stemleri̇ i̇çi̇n beklenti̇enbüyükleme tabanli kanal kesti̇ri̇mi̇

Acar Y., Salih E., Doǧan H.

2011 IEEE 19th Signal Processing and Communications Applications Conference, SIU 2011, Antalya, Turkey, 20 - 22 April 2011, pp.242-245 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/siu.2011.5929633
  • City: Antalya
  • Country: Turkey
  • Page Numbers: pp.242-245
  • Istanbul Kültür University Affiliated: Yes

Abstract

In this work, maximum likelihood (ML) channel estimation for uplink space time block coded multicarrier code-division multiple-access (STBC-MC-CDMA) systems is considered in the presence of frequency fading channel. The expectationmaximization (EM) is introduced to avoid matrix inversion for the ML channel estimation problem. We compare this algorithm in terms of the number of used iteration and show that the proposed algorithm converge the same performance of the ML estimator as the increasing number of iterations. © 2011 IEEE.