Channel estimation for 3GPP LTE MIMO-OFDMA systems 3GPP LTE MIMO-OFDMA sistemlerde kanal kestirimi

Çetin Ö., KARAKAYA B., Çırpan H. A.

18th IEEE Signal Processing and Communications Applications Conference, SIU 2010, Diyarbakır, Turkey, 22 - 24 April 2010, pp.129-132 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/siu.2010.5652228
  • City: Diyarbakır
  • Country: Turkey
  • Page Numbers: pp.129-132
  • Istanbul Kültür University Affiliated: Yes

Abstract

Multiple Input Multiple Output - Orthogonal Frequency Division Multiplexing (MIMO-OFDM) systems would be able to reach high data rates in the 3rd Generation Partnership Project, Long Term Evolution (3GPP-LTE) standarts. Multiple Input Multiple Output-Orthogonal Frequency Division Multiple Access (OFDMA) scheme is used in the LTE downlink for it's high spectral efficiency and some other superiorities. In this work, a low complex Minimum Mean Squared Error (MMSE) channel estimator for the LTE downlink MIMO-OFDMA structure is proposed. The recommended structure realizes the MMSE estimation of the Karhunen-Loéve (KL) series expansion coefficients of the spatially correlated channel parameters. The performance of the estimator is examined with the aim of the LTE Downlink 2x2 MIMO-OFDMA system simulation results. ©2010 IEEE.