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Channels With Cost Constraints: Strong Converse and Dispersion.
- Source :
-
IEEE Transactions on Information Theory . May2015, Vol. 61 Issue 5, p2415-2429. 15p. - Publication Year :
- 2015
-
Abstract
- This paper shows the strong converse and the dispersion of memoryless channels with cost constraints and performs a refined analysis of the third-order term in the asymptotic expansion of the maximum achievable channel coding rate, showing that it is equal to (1/ 2)((\log n)/n) in most cases of interest. The analysis is based on a nonasymptotic converse bound expressed in terms of the distribution of a random variable termed the $\mathsf b$ -tilted information density, which plays a role similar to that of the $\mathsf d$ -tilted information in lossy source coding. We also analyze the fundamental limits of lossy joint-source-channel coding over channels with cost constraints. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189448
- Volume :
- 61
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Information Theory
- Publication Type :
- Academic Journal
- Accession number :
- 102229283
- Full Text :
- https://doi.org/10.1109/TIT.2015.2409261