Abstract
Error detection and correction has got a great practical importance in maintaining information (data) integrity across noisy channels. Convolutional encoding is considered as one of the forward error correction (FEC) schemes. A Viterbi decoder (VD) uses the Viterbi algorithm for decoding a bit stream that has been encoded using FEC based on a convolutional code. In this proposed work, a simulation of convolutional encoder and Viterbi decoder presented. This paper focuses on the performance study of Viterbi algorithm by varying parameters like constraint length, generating polynomials, traces back lengths and also modulation technique. The code rate considered is ½. In each case the Signal to Noise ratio (SNR) is varied from -2 to 6 and the computation of Bit Error Rate (BER) is performed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: IOSR Journal of Electronics and Communication Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.