A dynamic pairing diversity with interference exploitation for high throughput 4G systems

Wahyu Pramudito, Emad Alsusa

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    This paper proposes and analyzes a new cooperative diversity technique that combines users pairing and interference exploitation for enhancing the uplink transmission performance in uplink OFDMA systems suitable for 4G technology. The underlying principle is to pair users on the basis of best interuser channel by utilizing low transmit power communication in the unlicensed band to exchange data symbols. Then, each pair remap their combined symbols according to a predefined rule such that they transmit the same constellation using single dimensional OFDMA to ensure that the signals of each pair combine constructively at the destination. As well as achieving a diversity order of two, the proposed technique attains further performance enhancements by exploiting co-channel interference. The impact of the proposed technique on various modulation orders is considered in this paper. The performance is assessed through Monte Carlo simulation and accurate mathematical analysis. It will be shown that the results from both models closely match and demonstrate that significant BER reduction as well as throughput enhancement are obtained relative to other uplink OFDMA transmission techniques. © 2013 IEEE.
    Original languageEnglish
    Title of host publicationIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC|IEEE Int Symp Person Indoor Mobile Radio Commun PIMRC
    Place of PublicationUK
    PublisherIEEE
    Pages1421-1425
    Number of pages4
    ISBN (Print)9781467362351
    DOIs
    Publication statusPublished - 2013
    Event2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 - London
    Duration: 1 Jul 2013 → …

    Conference

    Conference2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013
    CityLondon
    Period1/07/13 → …

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