A Unified Model of Pattern-Matching Circuit Architectures
Clark, Christopher R.
Schimmel, D. E. (David E.)
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There has been a significant volume of recent work on FPGA designs for pattern matching. Although various pattern-matching architectures have been presented, attempts to compare different designs have been inconclusive, or even misleading, due to the lack of a common evaluation framework. In this paper, we present an analytical model of FPGA pattern-matching architectures that quanti-tatively expresses the relationships between pattern properties, circuit area, and circuit delay. We derive equations that show how the performance of each architecture is dependent on the properties of the pattern set. This model enables many different pattern-matching architectures to be compared in order to determine the optimal design for a given pattern-matching application.
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