Igder, S, Idjmayyel, H, Qazi, B et al. (2 more authors) (2015) Load Adaptive Caching Points for a Content Distribution Network. In: 2015 9th International Conference on Next Generation Mobile Applications, Services and Technologies. 9th International Conference on Next Generation Mobile Applications, Services and Technologies, 09-11 Sep 2015, Cambridge, UK. IEEE ISBN 978-1-4799-8660-6
Abstract
The unprecedented growth in content demand on smartphones has significantly increased the energy consumption of current cellular and backbone networks. Apart from achieving stringent carbon footprint targets, provisioning high data rates to city vehicular users while maintaining quality of service (QoS) remains a serious challenge. In previous work, to support content delivery at high data rates, the number and locations of caching points (CPs) within a content distribution network (CDN) were optimized while reducing the operational energy consumption compared to typical cellular networks. Further reduction in energy consumption may be possible through sleep cycles, which reduces transmission energy consumption. However, sleep cycles degrade the quality of service. Therefore, in this paper, we propose a novel load adaptation technique for a CP which not only enhances content download rate but also reduces transmission energy consumption through random sleep cycles. Unlike a non-load adaptive (deterministic) CP, the performance results reveal that the load adaptive CP achieves considerably lower average piece delay (approximately 60% on average during the day), leveraging the introduction of random sleep cycles to save transmission energy. The proposed CP saves up to 84% transmission energy during off-peak hours and 33% during the whole day while fulfilling content demand in a city vehicular environment.
Metadata
Item Type: | Proceedings Paper |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | (c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works. |
Keywords: | Load adaptive data rate; vehicular networks.; content caching; content distribution network; random sleep cycles |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Institute of Communication & Power Networks (Leeds) |
Funding Information: | Funder Grant number EPSRC EP/H040536/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 14 Mar 2016 16:53 |
Last Modified: | 22 Jan 2018 12:00 |
Published Version: | http://dx.doi.org/10.1109/NGMAST.2015.24 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/NGMAST.2015.24 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:96333 |