Dual-path architecture of floating-point dot product computation

Dot product computation is widely used in many algorithms, such as FFT and DCT. This paper proposes a floating-point dot product architecture based on the multiple-path method. This architecture could perform A×B+C×D as a single operation. The speed of the dual-path architecture implemented in single precision format is faster by 32% and 5.45% than the speed of a network approach using traditional adders and multipliers and the speed of the basic dot product architecture, respectively.