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Title: Contention resolution algorithm for common subexpression elimination in digital filter design
Authors: Xu, Fei
Chang, Chip Hong
Jong, Ching Chuen
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2005
Source: Xu, F., Chang, C. H., & Jong, C. C. (2005). Contention resolution algorithms for common subexpression elimination in digital filter design. IEEE Transactions on Circuits and Systems-II: Express Briefs, 52(10), 695-700.
Series/Report no.: IEEE transactions on circuits and systems-II : express briefs
Abstract: In this paper, a new algorithm, called contention resolution algorithm for weight-two subexpressions (CRA-2), based on an ingenious graph synthesis approach has been developed for the common subexpression elimination of the multiplication block of digital filter structures. CRA-2 provides a leeway to break away from the local minimum and the flexibility of varying optimization options through a new admissibility graph. It manages two-bit common subexpressions and aims at achieving the minimal logic depth as the primary goal. The performances of our proposed algorithm are analyzed and evaluated based on benchmarked finite-impulse-response filters and randomly generated data. It is demonstrated that CRA-2 achieves the shortest logic depth with significant reduction in the number of logic operators compared with other reported algorithms.
ISSN: 1057-7130
DOI: 10.1109/TCSII.2005.851776
Rights: IEEE Transactions on Circuits and Systems-II: Express Briefs © copyright 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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