Title :
A low-power variable length decoder based on successive decoding of shoft codewords
Author :
Lee, Sung-Won ; Park, In-Cheol
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
Abstract :
This paper presents a low-power variable length decoder exploiting the statistics of successive codewords. The decoder employs a small look-up table working as a fixed cache to reduce the number of activations of a variable length code detector where most power is consumed. The power simulation results estimated with Powermill show that 35% energy is reduced on the average compared with the previous low-power scheme
Keywords :
decoding; low-power electronics; table lookup; variable length codes; Powermill simulation; fixed cache; look-up table; low-power variable length decoder; shoft codeword; successive decoding; Classification tree analysis; Decoding; Detectors; Discrete cosine transforms; Multimedia systems; Statistics; Sun; Table lookup; Throughput; Transform coding;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.922304
