Interference analysis in MQAM-OFDM microcellular mobile communication systems considering imperfect inter-cell synchronization

Khairi A. Hamdi, Yemisi M. Shobowale

    Research output: Chapter in Book/Conference proceedingConference contribution

    Abstract

    This paper presents a theoretical performance analysis of downlink (base-to-mobile) OFDM (Orthogonal frequency-division multiplexing) micro-cellular radio communication systems. The model developed in this analysis determines accurate interference analysis which takes into consideration frequency and timing synchronization errors between cochannel cells in a Nakagami/Rayleigh fading scenario. This leads to new, accurate and computationally efficient expressions for average bit error rates and cutoff rates of MQAM-OFDM in a micro-cellular environment. Results obtained are applicable in the investigation of the effect of synchronization errors on the spectral efficiency of OFDM based micro-cellular systems. Whilst the system is more robust against timing jitters resulting from separation distances from the victim receiver, frequency synchronization errors above 10-1 have the potential to create a loss in spectral efficiency of up to 7.5% for 16QAM. © 2006 IEEE.
    Original languageEnglish
    Title of host publicationGLOBECOM - IEEE Global Telecommunications Conference|GLOBECOM IEEE Global Telecommun. Conf.
    DOIs
    Publication statusPublished - 2006
    EventIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference - San Francisco, CA
    Duration: 1 Jul 2006 → …

    Conference

    ConferenceIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference
    CitySan Francisco, CA
    Period1/07/06 → …

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