Low complexity channel estimation for 3GPP LTE downlink MIMO OFDM systems

Ömer Çetin*, Bahattin Karakaya, Hakan Ali Çirpan

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

Multiple Input Multiple Output - Orthogonal Frequency Division Multiplexing (MIMO-OFDM) is a promising technique for reaching high data rates targeted in the 3rd Generation Partnership Project - Long Term Evolution (3GPP-LTE). MIMO-OFDM channel estimation schemes play a very important role on achieving this aim. However, the complexity of the estimators increases exponentially due to the structure of the MIMO systems. This causes an increase in the computational burden of the transceivers. As a result, the complexity of the channel estimators is becoming an important issue in real world MIMO-OFDM applications. In this paper, the performance of the low complexity Minimum Mean Square Error (MMSE) channel estimator scheme based on Karhunen-Loéve (KL) series expansion coefficients for the 3GPP-LTE Downlink MIMO-OFDM systems is examined. System level simulations are accomplished to compare the performances of the estimators under the spatially correlated channel coefficient variations.

Original languageEnglish
Title of host publicationIWCMC 2011 - 7th International Wireless Communications and Mobile Computing Conference
Pages1441-1444
Number of pages4
DOIs
Publication statusPublished - 2011
Event7th International Wireless Communications and Mobile Computing Conference, IWCMC 2011 - Istanbul, Turkey
Duration: 4 Jul 20118 Jul 2011

Publication series

NameIWCMC 2011 - 7th International Wireless Communications and Mobile Computing Conference

Conference

Conference7th International Wireless Communications and Mobile Computing Conference, IWCMC 2011
Country/TerritoryTurkey
CityIstanbul
Period4/07/118/07/11

Keywords

  • 3GPP
  • Karhunen-Loéve
  • LTE
  • MIMO
  • MMSE
  • OFDM

Fingerprint

Dive into the research topics of 'Low complexity channel estimation for 3GPP LTE downlink MIMO OFDM systems'. Together they form a unique fingerprint.

Cite this