A computationally efficient channel estimation with signal detection for MIMO-OFDM systems

S Suthaharan*, A Nallanathan, B Kannan

*Corresponding author for this work

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

7 Citations (Scopus)

Abstract

In this paper, a computationally efficient adaptive channel estimation scheme is proposed for a space-time block coded (STBC) multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) system. This adaptive channel estimation scheme is based on recursive least square (RLS) algorithm. The proposed channel estimation scheme is less complex and bandwidth efficient than the conventional channel estimation schemes for MIMO-OFDM systems. Simulation results show that the proposed channel estimator performs quite close to the system where ideal channel state information is available. At the receiver, signals from different co-channel users are detected using minimum mean squared error (MMSE) interference cancellation (IC) method. It is shown that the signal detection with the proposed channel estimator could be used to increase the system capacity. Simulation results are compared with theoretical error bounds.

Original languageEnglish
Title of host publicationPIMRC 2003: 14TH IEEE 2003 INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS PROCEEDINGS, VOLS 1-3 2003
EditorsK Gong, ZH Niu
Place of PublicationBEIJING
PublisherPUBLISHING HOUSE ELECTRONICS INDUSTRY
Pages1245-1249
Number of pages5
ISBN (Print)7-5053-5066-8
Publication statusPublished - 2003
Event14th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications - BEIJING, United Kingdom
Duration: 7 Sept 200310 Sept 2003

Conference

Conference14th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
Country/TerritoryUnited Kingdom
Period7/09/200310/09/2003

Keywords

  • WIRELESS COMMUNICATIONS

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