Title
A unified and reconfigurable Montgomery Multiplier architecture without four-to-two CSA
Abstract
This paper presents an improved version of unified Montgomery multiplier architecture to reduce the critical path delay leading to higher data throughput. It is known that the critical path delay due to four-to-two carry save adders (CSAs), which have two levels of carry-save logic, is predominant in determining the overall performance of the CSA based multipliers. In this paper, authors improve the multiplier efficiency by replacing four-to-two CSA with new one level area-efficient sum-carry logic. While conventional four-to-two CSA has a delay of four .xor. gates, the proposed sum-carry logic has a delay of only two .xor. gates. Not only does this result in reduced critical path delay but also results in reduced area compared to previous multiplier architectures. Also it can compute n-bit multiplication in n+2 clock cycles in both fields GF(p) and GF(2n). Further, the critical path delay is independent of input operand precision.
Year
DOI
Venue
2007
10.1145/1284480.1284525
SBCCI
Keywords
Field
DocType
proposed sum-carry logic,reconfigurable montgomery multiplier architecture,conventional four-to-two,critical path delay,previous multiplier architecture,multiplier efficiency,reduced critical path delay,level area-efficient sum-carry logic,unified montgomery multiplier architecture,four-to-two csa,carry-save logic,carry save adder,montgomery multiplication,critical path
Architecture,Adder,Montgomery reduction,Computer science,Parallel computing,Operand,Real-time computing,Multiplier (economics),Critical path delay,Multiplication,Throughput
Conference
Citations 
PageRank 
References 
2
0.41
5
Authors
2
Name
Order
Citations
PageRank
M. Sudhakar1141.80
M. B. Srinivas29615.09