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This paper explores the design of parallel multipliers for Quantum-Dot Cellular Automata. Array multipliers, Wallace multipliers, Dadda multipliers, and quasi-modular multipliers are designed and analyzed. Quasi-modular multipliers use 4 (n/2 × n/2) modules to make n × n multipliers are also considered. All of these designs are constructed using coplanar layouts. The delay, area and complexity are...
Low power multipliers with high clock frequencies play an important role in today's digital signal processing. In this work, the performance analysis of Wallace-tree, Array and Baugh-Wooley multiplier architectures is carried out. Physical verification of all the sub-blocks is performed using HSpice to check their functionality and to optimize for low power by using transistor sizing. The layouts...
This paper explores the optimization of parallel multipliers for Quantum-Dot Cellular Automata. To reduce the complexity, multipliers are designed with quasi-modularity to accommodate large word sizes. The regular quasi-modular product method is used to make n times n multipliers using 4 (n/2 times n/2) modules. This may be continued with further decomposition to 16 (n/4timesn/4) modules, etc. The...
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