Unequal Error Protection: An Information-Theoretic Perspective

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Date

2009-12-01

Author

Borade, Shashi
Nakiboğlu, Barış
Zheng, Lizhong

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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.

Subject Keywords

Block codes, Blowing-up lemma, Error exponents, False alarm, Feedback, Missed detection, Unequal error protection (UEP), Variable-length block coding

URI

https://hdl.handle.net/11511/37229

Journal

IEEE TRANSACTIONS ON INFORMATION THEORY

DOI

https://doi.org/10.1109/tit.2009.2032819

Collections

Department of Electrical and Electronics Engineering, Article

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Citation Formats

S. Borade, B. Nakiboğlu, and L. Zheng, “Unequal Error Protection: An Information-Theoretic Perspective,” IEEE TRANSACTIONS ON INFORMATION THEORY, pp. 5511–5539, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37229.