Cart (Loading....) | Create Account
Close category search window
 

On the robustness of joint source/channel coding for transmission through an ionospheric channel

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Souhard, B.B. ; IRCOM-SIC Lab., France ; Chatellier, C. ; Olivier, C.

In this paper, we present the results relative to our work on still image transmission on a noisy channel. The results are obtained, on one hand, from a digital transmission chain developed in the IRCOM-SIC Laboratory of Poitiers (France), and, on the other hand, from a high frequency transmission system (TRILION) which uses the ionospheric channel as transmission support. The purpose of this work is to find an efficient transmission system, in terms of visual quality for the received image. We already know that usual source coding schemes are inappropriate when errors occur during the transmission. Many error correction systems exist but they significantly decrease the compression ratios for a low error resistance. In order to solve this problem we use a vector quantization (VQ) algorithm based on the Kohonen topological maps. Results were obtained for various configurations of transmission chains from still images. We got a minimal loss, in terms of PSNR, of 0.04 dB compared to the original image thanks to a source coding using the Kohonen VQ. Simulations were carried out on a Gaussian channel by using a digital modulation QAM-256 with a bit error rate (BER)of 3.10-3.

Published in:

HF Radio Systems and Techniques, 2003. Ninth International Conference on (Conf. Publ. No. 493)

Date of Conference:

23-26 June 2003

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.