Title
Space and Power Reduction in BDD-based Optical Logic Circuits Exploiting Dual Ports
Abstract
Optical logic circuits based on integrated nanophotonics have attracted significant interest due to their ultra-highspeed operation. A synthesis method based on the Binary Decision Diagram (BDD) has been studied, as BDD-based optical logic circuits can take advantage of the speed of light. However, a fundamental disadvantage of BDD-based optical logic circuits is a large number of splitters, which results in large power consumption. In BDD-based circuits a dual port of each logic gate is not used. We propose a method for eliminating a splitter exploiting this dual port. We define a BDD node corresponding to a dual port as a dual port node (DP node) and call the proposed method DP node sharing. We demonstrated that DP node sharing significantly reduces the power consumption and to a lesser extent circuit size without increasing delay. We conducted an experiment involving 10-input logic functions obtained by applying an LUT technology mapper to an ISCSA'85 C7552 benchmark circuit to evaluate our DP node sharing. The experimental results demonstrated that DP node sharing reduces the power consumption by two orders of magnitude of circuit that consume a large amount of power.
Year
DOI
Venue
2022
10.23919/DATE54114.2022.9774637
PROCEEDINGS OF THE 2022 DESIGN, AUTOMATION & TEST IN EUROPE CONFERENCE & EXHIBITION (DATE 2022)
Keywords
DocType
ISSN
Binary Decision Diagram, Optical logic circuit, Logic synthesis
Conference
1530-1591
Citations 
PageRank 
References 
0
0.34
0
Authors
2
Name
Order
Citations
PageRank
Ryosuke Matsuo122.14
Shin-ichi Minato272584.72