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A Methodology for Improvement of RoBa Multiplier for Electronic Applications

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Document pages: 11 pages

Abstract: In this paper, we propose an approximate multiplier that is high speed yet energy efficient. The approach is to round the operands to the closest exponent of 2. This way the machine intensive a part of the multiplication is omitted up speed and energy consumption. The potency of the planned multiplier factor is evaluated by comparing its performance with those of some approximate and correct multipliers using different design parameters. In this proposed approach combined the conventional RoBA multiplier with Kogge-stone parallel prefix adder. The results revealed that, in most (all) cases, the newly designed RoBA multiplier architectures outperformed the corresponding approximate (exact) multipliers. Thus improved the parameters of RoBA multiplier which can be used in the voice or image smoothing applications in the DSP.

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