Performance evaluation of adaptive bit loading for OFDM with channel estimation using 2 x 1-D wiener filter

I Budiarjo, H Nikookar, LP Ligthart

    Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

    Abstract

    Channel State Information is crucail in applying adaptive bit loading to OFDM system. The number of bits allocated to each subcarrier is determined by the quantity of the channel state estimate and the noise variance estimate. In this paper performance of several adaptive bit loading algorithms for OFDM transmission over mobile fading channels are studied and compared. The novelty of this paper is the use of 2 x 1D Wiener filter channel estimation in evaluating the performance of several bit loading algorithms. The use of SNR grid in SImple Blockwise Loadgin Algorithm (SBLA) is extended. The performance of grouping of the OFDM subcarriers based on the channel gain order and subcarrierwise bit loading using the SNR grid are also evaluated.
    Original languageUndefined/Unknown
    Title of host publicationProceedings of WPMC 2006
    Editors s.n.
    Place of PublicationTokyo, Japan
    PublisherWMC secretariat
    Pages1138-1142
    Number of pages5
    ISBN (Print)1347 6890
    Publication statusPublished - 2006
    EventConferentie, San Diego, CA, USA - Tokyo, Japan
    Duration: 17 Sep 200620 Sep 2006

    Publication series

    Name
    Publisher2006 WMC secretariat

    Conference

    ConferenceConferentie, San Diego, CA, USA
    Period17/09/0620/09/06

    Keywords

    • conference contrib. refereed
    • Conf.proc. > 3 pag

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