A master thesis from Aalborg University
Routing Protocol For Wireless Sensor Networks with Hybrid Energy Storage System
Author(s)
Term
10. term
Publication year
2009
Submitted on
2009-09-11
Pages
62 pages
Abstract
This work presents new routing metrics for wireless sensor networks (WSNs) powered by harvesting sources. The models rely on a Hybrid Energy Storage System (HESS) which merges the complementarity of a Supercapacitor (SC) - low energy storage capability but perfect to handle high level of energy throuput and frequent charge cycles – and a Rechargeable Battery (RB) – higher energy storage capability but limited charge cycles. The HESS protocol assigns different metrics to the residual energy in both energy storage systems and favors routes with more SC energy and harvesting rates. An energy model framework has been developped and simulated in MATLAB with different application scenarios. The results show that the balanced load of the energy consumption and the reliable delivery of data packets achieve an extension of the network lifetime using HESS flexible and energy aware cost function.
Keywords
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