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    Combined FRM and GDFT filter bank designs for improved nonuniform DSA channelisation


    Palomo-Navarro, Ãlvaro and Farrell, Ronan and Villing, Rudi (2016) Combined FRM and GDFT filter bank designs for improved nonuniform DSA channelisation. Wireless Communications and Mobile Computing, 16 (12). pp. 1440-1456. ISSN 1530-8677

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    Official URL: http://dx.doi.org/10.1002/wcm.2608


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    Abstract

    Multi standard channelization for base stations is a big application of Generalised Discrete Fourier Transform Modulated Filter Banks (GDFT-FB) in digital communications. For technologies such as Software-Defined Radio (SDR) and Cognitive Radio (CR), non uniform channelizers must be used if frequency bands are shared by different standards. However, GDFT-FB based non-uniform channelizers can suffer from high filter orders when applied to wideband input signals. In this paper various combinations of GDFT-FB with the Frequency Response Masking (FRM) technique are proposed and evaluated for both uniform and non uniform channelization applications. Results show that the proposed techniques achieve savings in both the number of filter coefficients and the number of operations per input sample.

    Item Type: Article
    Keywords: frequency response masking; generalised discrete Fourier transform modulated filter banks; uniform channelisation; nonuniform channelisation; dynamic spectrum access;
    Academic Unit: Faculty of Science and Engineering > Research Institutes > Callan Institute
    Item ID: 6733
    Identification Number: https://doi.org/10.1002/wcm.2608
    Depositing User: Rudi Villing
    Date Deposited: 06 Jan 2016 09:35
    Journal or Publication Title: Wireless Communications and Mobile Computing
    Publisher: Wiley Online Library
    Refereed: Yes
    URI:

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