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

Unequal Error Protection Using Maximum A-Posteriori Probability (MAP) Algorithm, Soft Output Viterbi (SOVA) Algorithm and Modified SOVA

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 $13
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

5 Author(s)
Gnanasekaran, T. ; BannariAmman Inst. of Technol., Sathyamangalam ; Raja Ganapathi, R. ; Uma Maheswari, S. ; Duraiswamy, K.
more authors

Turbo decoder uses any one of the decoding algorithm of maximum a-posteriori probability algorithm (MAP) or Soft Output Viterbi Algorithm (SOVA). The traditional turbo code system use equal error protection (EEP). In many applications all the information don't need equal importance. So we need a new method unequal error protection (UEP). By doing so the important message is more protected than the other message bits. In this paper BER performance of UEP in fading channel is analyzed. BER performance substantially improved for the important class messages in UEP. In MAP the important class of message gained 0.4 dB over EEP. In SOVA and modified SOVA the important class of message gained 0.6 dB and 0.8 dB over EEP respectively. Modified SOVA produces a gain of 0.4 dB compared to MAP.

Published in:

Emerging Trends in Engineering and Technology, 2008. ICETET '08. First International Conference on

Date of Conference:

16-18 July 2008

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.