Opportunistic Error Correction for MIMO

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

    1 Citation (Scopus)
    50 Downloads (Pure)

    Abstract

    In this paper, we propose an energy-efficient scheme to reduce the power consumption of ADCs in MIMO-OFDM systems. The proposed opportunistic error correction scheme is based on resolution adaptive ADCs and fountain codes. The key idea is to transmit a fountain-encoded packet over one single sub-carrier per antenna and to transmit more packets than needed for decoding. Comparing to the IEEE 802.11n standard, this approach allows around 83\% of power saving in ADCs for a $2\times2$ system and 90\% for a $4\times4$ system. With the current FEC scheme defined in the IEEE 802.11n standard, a $4\times4$ system requires twice amount of power in ADCs as a $2\times2$ system when receiving the same amount of information with the same power. However, using opportunistic error correction in a $4\times4$ system costs only around 1.4 times amount of energy in ADCs comparing to a $2\times2$ system.
    Original languageEnglish
    Title of host publicationThe 20th Personal, Indoor and Mobile Radio Communications Symposium 2009 (PIMRC'09)
    Place of PublicationLos Alamitos
    PublisherIEEE Computer Society Press
    Pages1757-1761
    Number of pages5
    ISBN (Print)978-1-4244-5123-4
    DOIs
    Publication statusPublished - Sep 2009
    Event20th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2009 - Tokyo, Japan
    Duration: 13 Sep 200916 Sep 2009
    Conference number: 20

    Publication series

    Name
    PublisherIEEE Computer Society Press

    Conference

    Conference20th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2009
    Abbreviated titlePIMRC
    CountryJapan
    CityTokyo
    Period13/09/0916/09/09

    Keywords

    • METIS-266513
    • EWI-17158
    • IR-71165

    Fingerprint Dive into the research topics of 'Opportunistic Error Correction for MIMO'. Together they form a unique fingerprint.

    Cite this