A Distributed Caching Approach for Improved Data Availability in Rural Wireless Mesh Networks

Ajayi, Ayomide Olanrewaju and Edwards, Christopher James and Roedig, Utz (2016) A Distributed Caching Approach for Improved Data Availability in Rural Wireless Mesh Networks. In: Computational Science and Computational Intelligence (CSCI), 2016 International Conference on. IEEE, USA, 904 - 910. ISBN 9781509055111

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Abstract

The performance of wireless mesh networks (WMNs) deployed for Internet access in rural settings is affected by several factors. Typically, deployments in African domains use cheap and computationally constrained devices with challenges such as power fluctuations, gateway congestion, VSAT communications asymmetry and low bandwidth, which affects throughput under dynamic scenarios. Caching methods can offer improvement for content availability to ensure a reliable quality of experience (QoE) for rural dwellers. Primarily, we integrate a modified multicast technique and overhearing for object caching and cache dissemination. We proposed a Distributed Overheard-object Caching Approach (DOCA) and evaluated the performance employing simulations. The outcome shows significant improvements over the random-path-cache-request (RPCR) strategy with increased data availability and reduced communication cost regarding response time for the outlined rural scenarios. Moreover, the optimization of gateway load helps to conserve network resources such as bandwidth and nodal energy considerably.

Item Type: Contribution in Book/Report/Proceedings
Uncontrolled Keywords: /dk/atira/pure/subjectarea/aacsb/disciplinebasedresearch
Subjects:
Departments: Faculty of Science and Technology > School of Computing & Communications
VC's Office
ID Code: 86935
Deposited By: ep_importer_pure
Deposited On: 27 Oct 2017 09:46
Refereed?: Yes
Published?: Published
Last Modified: 18 Nov 2019 00:57
URI: https://eprints.lancs.ac.uk/id/eprint/86935

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