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| Area Optimization of XNOR/OR Circuits Based on Novel Polarity Conversion Technique |
| Zhang Hui-hong Wang Peng-jun Yu Hai-zhen |
| Institute of Circuits and Systems, Ningbo University, Ningbo 315211, China |
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Abstract As a kind of basic operation, polarity conversion is largely involved in the polarity optimization of Reed- Muller (RM) logic circuits, especially for large-scale circuits. The rate of polarity conversion has a direct impact on efficiency of the polarity optimization. A mathematical model is established for area optimization of XNOR/OR circuits, which is a kind of basic realization of RM logic circuits. A novel polarity conversion technique is proposed by combining the superiorities of the existing ones. Based on the features of the novel conversion technique, an area optimization is proposed for large-scale XNOR/OR circuits. Experimental results show that compared to other conversion algorithms, the proposed polarity conversion technique can significantly improve the area optimization of XNOR/OR circuits.
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Received: 09 December 2011
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Corresponding Authors:
Wang Peng-jun
E-mail: wangpengjun@nbu.edu.cn
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2012, Vol. 34 
