Dual constellation diversity-enhanced modulation for network-coded bidirectional relaying in an asymmetric channel

Hyun Seok Ryu, Chung G. Kang

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

    1 Citation (Scopus)

    Abstract

    In this paper, we consider a modulation scheme for a network-coded bi-directional relaying (CBR) scheme in which two different signals from mutually communicating nodes are network-coded in the relay node. It employs dual constellations as a useful means of dealing with its performance degradation in the CBR over asymmetric channel (i.e., the different signal-to-noise ratio in each link), which provide not only a diversity gain from the symbol repetition but also a coding gain from the constellation rearrangement to protect the network-coded symbols. We study the channel utilization and bit error rate performance of the different CBR schemes to show that the proposed diversity-enhanced CBR system always outperforms other existing systems as long as traffic load is properly balanced along the bi-directional links.

    Original languageEnglish
    Title of host publication2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages2375-2379
    Number of pages5
    ISBN (Print)9781424451234
    DOIs
    Publication statusPublished - 2009
    Event2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009 - Tokyo, Japan
    Duration: 2009 Sept 132009 Sept 16

    Publication series

    NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

    Other

    Other2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009
    Country/TerritoryJapan
    CityTokyo
    Period09/9/1309/9/16

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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