Title :
On the capacity region for index coding
Author :
Arbabjolfaei, Fatemeh ; Bandemer, Bernd ; Young-Han Kim ; Sasoglu, Eren ; Lele Wang
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, San Diego, La Jolla, CA, USA
Abstract :
A new inner bound on the capacity region of the general index coding problem is established. Unlike most existing bounds that are based on graph theoretic or algebraic tools, the bound relies on a random coding scheme and optimal decoding, and has a simple polymatroidal single-letter expression. The utility of the inner bound is demonstrated by examples that include the capacity region for all index coding problems with up to five messages (there are 9846 nonisomorphic ones).
Keywords :
decoding; graph theory; random codes; algebraic tool; capacity region; general index coding problem; graph theory; inner bound; optimal decoding; random coding scheme; simple polymatroidal single-letter expression; Channel coding; Decoding; Indexes; Network coding; Receivers;
Conference_Titel :
Information Theory Proceedings (ISIT), 2013 IEEE International Symposium on
Conference_Location :
Istanbul
DOI :
10.1109/ISIT.2013.6620369
