Unequal Error Protection: An Information-Theoretic Perspective
Name
Borade-2009-Unequal Error Protec.pdf
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775.44 KB
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Adobe PDF
Checksum (MD5)
05aeddb1d957ef996de0354555b12638
Author(s)
Borade, Shashi
Nakiboglu, Baris
Zheng, Lizhong
Date Issued
November 2009
Journal
IEEE Transactions on Information Theory
Publisher
Institute of Electrical and Electronics Engineers
Citation
Borade, S., B. Nakiboglu, and Lizhong Zheng. “Unequal Error Protection: An Information-Theoretic Perspective.” Information Theory, IEEE Transactions on 55.12 (2009): 5511-5539. © 2009 Institute of Electrical and Electronics Engineers
Version
Final published version
Abstract
An information-theoretic framework for unequal error protection is developed in terms of the exponential error bounds. The fundamental difference between the bit-wise and message-wise unequal error protection ( UEP) is demonstrated, for fixed-length block codes on discrete memoryless channels (DMCs) without feedback. Effect of feedback is investigated via variable-length block codes. It is shown that, feedback results in a significant improvement in both bit-wise and message-wise UEPs (except the single message case for missed detection). The distinction between false-alarm and missed-detection formalizations for message-wise UEP is also considered. All results presented are at rates close to capacity.
Subjects
Block codes
blowing-up lemma
error exponents
false alarm
feedback
missed detection
unequal error protection (UEP)
variable-length block coding
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
http://dx.doi.org/10.1109/TIT.2009.2032819
