Cache-aided data delivery over erasure broadcast channels

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Title: Cache-aided data delivery over erasure broadcast channels
Authors: Mohammadi Amiri, M
Gunduz, D
Item Type: Conference Paper
Abstract: A cache-aided erasure broadcast channel is studied. The receivers are divided into two sets: the weak and strong receivers, where the receivers in the same set all have the same erasure probability. The weak receivers, in order to compensate for the high erasure probability, are equipped with cache mem- ories of equal size, while the receivers in the strong set have no caches. Data can be pre-delivered to weak receivers’ caches over the off-peak traffic period before the receivers reveal their demands. A joint caching and channel coding scheme is proposed such that all the receivers, even the receivers without any cache memories, benefit from the presence of caches across the network. The trade-off between the cache size and the achievable rate is studied, and it is shown that the proposed scheme significantly improves the achievable trade-off upon the state-of-the-art.
Issue Date: 21-May-2017
Date of Acceptance: 27-Jan-2017
ISSN: 0536-1486
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Journal / Book Title: Conference Record - International Conference on Communications
Copyright Statement: This paper is embargoed until publication.
Sponsor/Funder: Commission of the European Communities
Funder's Grant Number: 677854
Conference Name: IEEE International Conference on Communications
Publication Status: Accepted
Start Date: 2017-05-21
Finish Date: 2017-05-25
Conference Place: Paris, France
Embargo Date: publication subject to indefinite embargo
Appears in Collections:Faculty of Engineering
Electrical and Electronic Engineering

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