Low complexity channel estimation for low-mobility LTE using 4×4 MIMO

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding


Multiple-input multiple-output (MIMO) is a mandatory feature of the Third Generation Partnership Project (3GPP) Long Term Evolution. This work investigates the performance of a low complexity channel estimator for LTE terminals with an emphasis on the 4 × 4 multiple antenna scheme. The presented work extends a promising low-complexity 2 × 2 MIMO channel estimator to the 4 × 4 MIMO case and evaluates its performance at different terminal speeds. The evaluation is done in terms of simulated error performance for coded LTE. We show that the presented channel estimator can be used without a significant performance loss up to about 15-20 km/h, where the approximations done to achieve low complexity start to have a significant impact on the performance.


  • Farnaz Karimdady Sharifabad
  • Farzad Foroughi
  • Ove Edfors
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Electrical Engineering, Electronic Engineering, Information Engineering
Original languageEnglish
Title of host publicationProc. of the 6th IEEE Conference on Industrial Electronics and Applications (ICIEA)
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Print)978-1-4244-8754-7
Publication statusPublished - 2011
Publication categoryResearch
Event6th IEEE Conference on Industrial Electronics and Applications (ICIEA) - Beijing, China
Duration: 2011 Jun 212011 Jun 23


Conference6th IEEE Conference on Industrial Electronics and Applications (ICIEA)

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