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Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
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TY - GEN
T1 - A Distributed Caching Approach for Improved Data Availability in Rural Wireless Mesh Networks
AU - Ajayi, Ayomide Olanrewaju
AU - Edwards, Christopher James
AU - Roedig, Utz
PY - 2016/12/16
Y1 - 2016/12/16
N2 - 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.
AB - 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.
KW - Data Availability
KW - Resource Conservation
KW - Distributed Caching
KW - Overhearing and Wireless Transmission
U2 - 10.1109/CSCI.2016.0175
DO - 10.1109/CSCI.2016.0175
M3 - Conference contribution/Paper
SN - 9781509055111
SP - 904
EP - 910
BT - Computational Science and Computational Intelligence (CSCI), 2016 International Conference on
PB - IEEE
CY - 16772962
T2 - International Conference on Computational Science and Computational Intelligence
Y2 - 15 December 2016 through 17 December 2016
ER -