基于Han-Carlson结构的加法器优化设计
An Optimal Design for Han Carlson Parallel Prefix Adder
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摘要: Han-Carlson结构是介于Kogge-Stone结构和Brent-Kung结构之间的一种并行前缀加法器, 并且结合了两种结构的优势.基于Han-Carlson结构并行前缀加法器, 对其结构特点进行研究分析, 在延时和面积上进行折中选择, 提出了一种优化方案, 牺牲部分延时, 减少使用面积以降低功耗.将其与未优化的Han-Carlson加法器以及混合加法器进行对比后表明, 该优化方案成功减少了使用面积, 降低了功耗.Abstract: Han-Carlson parallel-prefix adder is a combination of Kogge-Stone adder and Brent-Kung adder's advantages.This paper proposes a method of optimization based on Han-Carlson parallel-prefix topology. Sacrificing part of the delay and reducing the use of area to reduce power consumption.Comparing with unoptimized Han-Carlson parallel-prefix adder and mixed adders based on Han-Carlson parallel-prefix adder, the proposed method is succeed to reduce the using area and power.
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