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Communication Dans Un Congrès Année : 2016

Spatial Multi-LRU Caching for Wireless Networks with Coverage Overlaps

Résumé

This article introduces a novel family of decentralised caching policies, applicable to wireless networks with finite storage at the edge-nodes (stations). These policies are based on the Least-Recently-Used replacement principle, and are, here, referred to as spatial multi-LRU. Based on these, cache inventories are updated in a way that provides content diversity to users who are covered by, and thus have access to, more than one station. Two variations are proposed, namely the multi-LRU-One and-All, which differ in the number of replicas inserted in the involved caches. By introducing spatial approximations, we propose a Che-like method to predict the hit probability, which gives very accurate results under the Independent Reference Model (IRM). It is shown that the performance of multi-LRU increases the more the multi-coverage areas increase, and it approaches the performance of other proposed centralised policies, when multi-coverage is sufficient. For IRM traffic multi-LRU-One outperforms multi-LRU-All, whereas when the traffic exhibits temporal locality the-All variation can perform better.
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Dates et versions

hal-01278818 , version 1 (24-02-2016)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

Citer

Anastasios Giovanidis, Apostolos Avranas. Spatial Multi-LRU Caching for Wireless Networks with Coverage Overlaps. SIGMETRICS'16 , ACM, Jun 2016, Antibes Juan-Les-Pines, France. pp.403-405, ⟨10.1145/2896377.2901483⟩. ⟨hal-01278818⟩
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