The Use of Hybrid Logarithmic Arithmetic for Root Raized Cosine Matched Filters in WCDMA Downlink Receivers

Litchfield, C. and Lee, Peter and Langley, Richard J. and Batchelor, John C. (2005) The Use of Hybrid Logarithmic Arithmetic for Root Raized Cosine Matched Filters in WCDMA Downlink Receivers. In: Wireless Communications and Networking Conference, 2005 IEEE. IEEE pp. 596-600. ISBN 0-7803-8966-2. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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The paper compares and contrasts the performance of a root raised cosine matched filter implemented using hybrid logarithmic arithmetic with that of standard binary and floating point implementations. Hybrid logarithmic arithmetic is advantageous for FIR digital filters since it removes the necessity for the use of high speed array multipliers. These can be replaced by simple lookup table structures for conversion to and from the logarithmic domain. Matlab simulations of the hybrid logarithmic structure show that its performance is superior to that of recently published fixed point solutions, while offering a significantly reduced complexity when compared to floating point equivalents proposed for the WCDMA downlink in receiver applications. The use of hybrid logarithmic arithmetic also has the potential to reduce the power consumption, latency and hardware complexity for mobile handset applications.

Item Type: Conference or workshop item (Paper)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunications
Divisions: Faculties > Science Technology and Medical Studies > School of Engineering and Digital Arts > Broadband & Wireless Communications
Depositing User: Yiqing Liang
Date Deposited: 15 Aug 2009 11:58
Last Modified: 08 May 2014 13:20
Resource URI: (The current URI for this page, for reference purposes)
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