High speed parallel optical adder for quaternary signed-digit number usingdigit-decomposition-plane representation

	High speed parallel optical adder for quaternary signed-digit number usingdigit-decomposition-plane representation
Journal of Basrah Researches (Sciences)
Article 1, Volume 32, Issue 2, 2006, Pages 1-11 PDF (0 K)
Abstract
A simple optical scalable parallel and high-speed 2D data array adder for quaternary signed-digit (QSD) number is presented in this paper. The 2D QSD data arrays are coded with the digit-decomposition-plane (DDP) representation. The proposed algorithm performs parallel QSD addition in constant time independent of the size of the QSD data arrays. The methodology design is based on logical formulas which are newly derived to implement optically the suggested QSD adder. The optical implementation of the proposed adder is achieved using classical optical tools to realize the logical formulas. The simulation results of the addition operation insure that the proposed QSD adder works successfully A simple optical scalable parallel and high-speed 2D data array adder for quaternary signed-digit (QSD) number is presented in this paper. The 2D QSD data arrays are coded with the digit-decomposition-plane (DDP) representation. The proposed algorithm performs parallel QSD addition in constant time independent of the size of the QSD data arrays. The methodology design is based on logical formulas which are newly derived to implement optically the suggested QSD adder. The optical implementation of the proposed adder is achieved using classical optical tools to realize the logical formulas. The simulation results of the addition operation insure that the proposed QSD adder works successfully
Keywords
Alaa A; Saffar; Sabah S; Alsheraidah and Mohammed A; Ebbady

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