Hybrid Wireless Edge Caching for Relaying with Spatial Randomness

Eleni Demarchou; Constantinos Psomas; Ioannis Krikidis

doi:10.5281/zenodo.1040696

Published July 3, 2017 | Version v1

Conference paper Open

Hybrid Wireless Edge Caching for Relaying with Spatial Randomness

1. KIOS Center of Excellence, University of Cyprus

This paper employs wireless edge caching at relay nodes and proposes a cooperative hybrid caching placement scheme. The trade-off between the conventional caching schemes of most popular content (MPC) and largest content diversity (LCD) is investigated considering two degrees of flexibility. Specifically, we consider two design variables i.e, the number of relays employing the MPC scheme as well as the percentage of the storage dedicated to MPC. The caching policy is studied by considering spatially random relays and by using tools from stochastic geometry, we present a closed form expression for the success probability. Finally, we provide the optimal combination of MPC and LCD, which maximizes the success probability and show the gains achieved by our proposed scheme against conventional solutions.

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