48 citations · 143 across the 47 of their papers we have counts for
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Source-Channel Matching for Sources with Memory
Christos Kourtellaris, Charalambos D. Charalambous, Photios A. Stavrou
In this paper we analyze the probabilistic matching of sources with memory to channels with memory so that symbol-by-symbol code with memory without anticipation are optimal, with…
Rate Distortion Function for a Class of Relative Entropy Sources
Farzad Rezaei, Charalambos D. Charalambous, Photios A. Stavrou
This paper deals with rate distortion or source coding with fidelity criterion, in measure spaces, for a class of source distributions. The class of source distributions is describ…
Nonanticipative Rate Distortion Function for General Source-Channel Matching
Christos Kourtellaris, Charalambos D. Charalambous, Photios A. Stavrou
In this paper we invoke a nonanticipative information Rate Distortion Function (RDF) for sources with memory, and we analyze its importance in probabilistic matching of the source…
Directed Information on Abstract Spaces: Properties and Variational Equalities
Charalambos D. Charalambous, Photios A. Stavrou
Directed information or its variants are utilized extensively in the characterization of the capacity of channels with memory and feedback, nonanticipative lossy data compression,…
Optimal Nonstationary Reproduction Distribution for Nonanticipative RDF on Abstract Alphabets
Photios A. Stavrou, Charalambos D. Charalambous, Christos K. Kourtellaris
In this paper we introduce a definition for nonanticipative Rate Distortion Function (RDF) on abstract alphabets, and we invoke weak convergence of probability measures to show var…
Variational Equalities of Directed Information and Applications
Photios A. Stavrou, Charalambos D. Charalambous
In this paper we introduce two variational equalities of directed information, which are analogous to those of mutual information employed in the Blahut-Arimoto Algorithm (BAA). Su…