Efficient hardware architecture for integer implementation of multi-alphabet arithmetic coding for data mining

摘要

>The aim of this paper is to create an efficient hardware architecture for the multi-alphabet arithmetic coding (MA-AC) in semicustom and full custom application specific integrated circuit (ASIC). Generally, hardware realisation of MA-AC involves numerical processing and entropy coding, which employ the floating point (FP) arithmetic which is replaced by integer implementation in such a way that the symbol counts are used instead of probabilities. Novel hardware architecture is designed by modifying the update equations for upper and lower limits of multi-alphabet arithmetic encoder and decoder based on the update equation of the FP implementation. The proposed hardware architectures are synthesised in Xilinx and Altera Field Programmable Gate Array (FPGA) devices to evaluate resource utilisation and speed. Also, the physical design is encountered as ASIC device using Cadence Design environment tsmc 0.18 µm technology which shows area reduction of 12.75% and 23.61% and power consumption of 29.86% and 38.89% for encoder and decoder, respectively.