A Resource Intensive Traffic-Aware Scheme for Cluster-based Energy Conservation in Wireless Devices

摘要

Wireless traffic that is destined for a certain device in a network, can beexploited in order to minimize the availability and delay trade-offs, andmitigate the Energy consumption. The Energy Conservation (EC) mechanism can benode-centric by considering the traversed nodal traffic in order to prolong thenetwork lifetime. This work describes a quantitative traffic-based approachwhere a clustered Sleep-Proxy mechanism takes place in order to enable eachnode to sleep according to the time duration of the active traffic that eachnode expects and experiences. Sleep-proxies within the clusters are createdaccording to pairwise active-time comparison, where each node expects duringthe active periods, a requested traffic. For resource availability and recoverypurposes, the caching mechanism takes place in case where the node for whichthe traffic is destined is not available. The proposed scheme uses Role-basednodes which are assigned to manipulate the traffic in a cluster, through thetime-oriented backward difference traffic evaluation scheme. Simulation studyis carried out for the proposed backward estimation scheme and theeffectiveness of the end-to-end EC mechanism taking into account a number ofmetrics and measures for the effects while incrementing the sleep time durationunder the proposed framework. Comparative simulation results show that theproposed scheme could be applied to infrastructure-less systems, providingenergy-efficient resource exchange with significant minimization in the powerconsumption of each device.