International Journal of Computer Applications
Multipliers play a vital role in any DSP processors or in any DSP applications. Multipliers are classified based on how the data is been processed. They are broadly classified as serial multipliers and parallel multipliers. The add and shift multiplier will work as normal array multiplier. The way of multiplying in this type of multiplier is similar to normal manual calculation. The parallel multipliers are mainly classified as array based and tree based multipliers. C.S Wallace proposed a tree based multiplier called Wallace tree multiplier which operates at high speed.