Unequal Error Protection: An Information-Theoretic Perspective

Date

2009-12-01

Author

Borade, Shashi
Nakiboğlu, Barış
Zheng, Lizhong

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

2
views

2
downloads

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

Collections

Department of Electrical and Electronics Engineering, Article