Channel estimation for OFDM systems in Power Line Communication Güç Hattl iletiminde OFDM Sistemleri Için Kanal Kestirimi

Curuk S. M.

2015 23rd Signal Processing and Communications Applications Conference, SIU 2015, Malatya, Turkey, 16 - 19 May 2015, pp.1537-1540, (Full Text) identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/siu.2015.7130139
  • City: Malatya
  • Country: Turkey
  • Page Numbers: pp.1537-1540
  • Keywords: MAP channel estimation, Orthogonal frequency division multiplexing, Power line communication
  • Hatay Mustafa Kemal University Affiliated: Yes

Abstract

An adaptive Maximum A-Posteriori based channel estimation method is presented in this paper. The estimator is proposed to be used in Orthogonal Frequency Division Multiplexing systems in Power Line Communication. The proposed estimator estimates the subchannel correlation adaptively where the channel is assumed to be frequency selective and slowly time varying. The performance of the estimator is investigated by evaluating the Mean Square Error of estimations. The simulations are done using measured channel data taken from the literature with additive white Gaussian noise assumption. The results show that the proposed estimator has better performance compared to Maximum Likelihood estimator. This performance improvement is clearer especially for low to moderate SNRs.