Title
A Rate–Distortion Approach to Index Coding
Abstract
We approach index coding as a special case of rate–distortion with multiple receivers, each with some side information about the source. Specifically, using techniques developed for the rate–distortion problem, we provide two upper bounds and one lower bound on the optimal index coding rate. The upper bounds involve specific choices of the auxiliary random variables in the best existing scheme for the rate–distortion problem. The lower bound is based on a new lower bound for the general rate–distortion problem. The bounds are shown to coincide for a number of (groupcast) index coding instances, including all instances for which the number of decoders does not exceed three.
Year
DOI
Venue
2014
10.1109/TIT.2016.2608943
Information Theory and Applications Workshop
Keywords
Field
DocType
rate distortion theory,radio receivers,network coding
Linear network coding,Rate distortion,Mathematical optimization,Computer science,Algorithm,Side information,Theoretical computer science,Coding (social sciences),Radio receiver,Rate–distortion theory,Variable-length code,Special case
Journal
Volume
Issue
ISSN
62
11
0018-9448
Citations 
PageRank 
References 
7
0.54
21
Authors
2
Name
Order
Citations
PageRank
Sinem Unal1142.54
Aaron B. Wagner232237.39