A Parallel Prefix High Speed KOGGE Stone Adder for Convolution Application

Abstract

Parallel prefix adder is used for speeding up the system’s logical operation. Execution of parallel prefix adder’s structure in VLSI has efficient performance. Parallel prefix adder structures are of different types i.e., Brent-Kung, Han-Carlson Adderetc. Have been projected earlier. Kogge- Stone adder with pipelining is the fastest adder structure among all of them. Kogge-Stone adder is the sub-type of parallel prefix adder in which it uses smaller amount of prefixing operation with black cells as compared with the other adder and final sum is calculated through post processing technique. In this paper, initially pipelining Kogge Stone adder is implemented and that result gives decrease in critical path delay and increase in speed.