Hardware and software implementations of an MMSE equalizer for MIMO-OFDM based WLAN

Ö. Paker, C.H. Berkel, van, C.M. Moerman

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

3 Citations (Scopus)
1 Downloads (Pure)


Communication over a MIMO (multiple-inputmultiple- output) channel promises several advantages: increase in channel capacity, reduced transmit power, greater coverage, and improved link robustness. The minimum mean squared error equalizer (MMSE) is a potential algorithm in addressing the MIMO detection challenge. This paper presents four implementations for the computation of the MMSE equalizer coefficients. The studied options are: (1) a generalpurpose microprocessor (ARM926EJ-S), (2) a traditional general purpose DSP (RD16024), (3) an embedded vector processor (EVP16), and (4) a dedicated hardware solution. We show that, the equalizer requires acceleration for real-time processing. In order to obtain a low cost, flexible multistandard WLAN baseband implementation, EVP16 is the only feasible solution among the four studied.
Original languageEnglish
Title of host publicationProceedings of the 2005 IEEE Workshop on Signal Processing Systems (SIPS'05, Athens, Greece, November 2-4, 2005)
Place of PublicationPiscataway NJ, USA
PublisherInstitute of Electrical and Electronics Engineers
ISBN (Print)0-7803-9333-3
Publication statusPublished - 2006


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