Structured Index Coding Problem and Multi-access Coded Caching

Autor:	Reddy, Kota Srinivas, Karamchandani, Nikhil
Rok vydání:	2020
Předmět:	Computer Science - Information Theory Computer Science - Distributed Parallel and Cluster Computing Mathematics - Combinatorics
Zdroj:	IEEE Journal on Selected Areas in Information Theory 2021
Druh dokumentu:	Working Paper
DOI:	10.1109/JSAIT.2021.3126663
Popis:	Index coding and coded caching are two active research topics in information theory with strong ties to each other. Motivated by the multi-access coded caching problem, we study a new class of structured index coding problems (ICPs) which are formed by the union of several symmetric ICPs. We derive upper and lower bounds on the optimal server transmission rate for this class of ICPs and demonstrate that they differ by at most a factor of two. Finally, we apply these results to the multi-access coded caching problem to derive better bounds than the state of the art. Comment: 44 pages, single column, ITW and JSAIT
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2012.04705 Zobrazit plný text záznamu View this record from Arxiv