DC-FREE TURBO CODING SCHEME FOR GPRS SYSTEM AND BLUETOOTH SYSTEM

摘要

A useful tool in the design of reliable digital communication systems is channel coding. Turbo codes have been shown to yield an outstanding coding gain close to theoretical limits in the Additive White Gaussian Noise (AWGN) channel. Recently, they have been studied over Rayleigh fading channel as well and showed a remarkable performance. In this paper, we propose a DC-Free Turbo coding scheme and Turbo coding scheme to replace the Convolutional coding already in use in the General Packet Radio Service (GPRS) system and BLUETOOTH system. Evaluation of the proposed encoder by means of computer simulation has shown performance improvements.