Low Power Optimization of MPEG-2 AAC with Microscopic Dynamic Voltage Scaling(DVS)

Microscopic Dynamic Voltage Scaling(DVS) 기반 저전력 MPEG-2 AAC 알고리즘 최적화 구현에 관한 연구

This paper proposes a new means of performance optimization for multimedia algorithm utilizing the Microscopic DVS (Dynamic Voltage Scaling). The Microscopic DVS technique controls the operating frequency and the supply voltage levels dynamically according to the processing requirement for each frame of multimedia data. The huffman decoding algorithm of MPEG-2 AAC audio decoder is optimized to maximize the power saving efficiency of Microscopic DVS technique. The experimental results show the reduction of computational complexity by more than 30% and the reduction of power consumption by more than 17% compared with those of the conventionally fast method.