文章基本信息

标题：Design and Implementation of Convolution Encoder and Viterbi Decoder
本地全文：下载
作者：Rakhi B. Menon ; Dr. Gnana Sheela K
期刊名称：International Journal of Computer Science and Network
印刷版ISSN：2277-5420
出版年度：2015
卷号：4
期号：6
页码：928-938
出版社：IJCSN publisher
摘要：Data transmissions over wireless channels are affected by attenuation, distortion, interference and noise, which affect the receiver’s ability to receive correct information. Convolution encoding with Viterbi decoding is a powerful method for forward error correction. Convolution encoders and Viterbi decoders play an important role in digital communication especially, when channel is noisy and introduces errors in transmitted signal. The use of re-transmission methods is not efficient and has large latency measure up to the rising speed and data rates of communication links, the need of new techniques arise here to be compatible with those systems. Convolution encoding with forward error correction Viterbi decoding is designed. Implementation parameters for the decoder have been determined through simulation and the decoder should be implemented on a Xilinx FPGA SPARTAN 3E Kit. Verilog HDL language is used as a design entry.
关键词：Convolution encoder;Viterbi decoder;Viterbi Algorithm;Verilog HDL;Soft decision decoding;Trace back method