On Minimizing Energy Consumption for D2D Clustered Caching Networks

Amer, R., Butt, M. M. , ElSawy, H., Bennis, M., Kibiłda, J. and Marchetti, N. (2019) On Minimizing Energy Consumption for D2D Clustered Caching Networks. In: IEEE GLOBECOM 2018, Abu Dhabi, United Arab Emirates, 09-13 Dec 2018, ISBN 9781538647271 (doi: 10.1109/GLOCOM.2018.8647532)

Abstract

We formulate and solve the energy minimization problem for a clustered device-to-device (D2D) network with cache-enabled mobile devices. Devices are distributed according to a Poisson cluster process (PCP) and are assumed to have a surplus memory which is exploited to proactively cache files from a library. Devices can retrieve the requested files from their caches, from neighboring devices in their proximity (cluster), or from the base station as a last resort. We minimize the energy consumption of the proposed network under a random probabilistic caching scheme, where files are independently cached according to a specific probability distribution. A closed form expression for the D2D coverage probability is obtained. The energy consumption problem is then formulated as a function of the caching distribution, and the optimal probabilistic caching distribution is obtained. Results reveal that the proposed caching distribution reduces energy consumption up to 33% as compared to caching popular files scheme.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Butt, Dr Muhammad Majid
• Authors: Amer, R., Butt, M. M., ElSawy, H., Bennis, M., Kibiłda, J., and Marchetti, N.
• College/School: College of Science and Engineering > School of Engineering
• ISSN: 2576-6813
• ISBN: 9781538647271
• Published Online: 21 February 2019
• Copyright Holders: Copyright © 2018 IEEE
• First Published: First published in IEEE GLOBECOM 2018
• Publisher Policy: Reproduced in accordance with the publisher copyright policy

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