Queue stability measurements for Energy Harvesting Sensor nodes

Abstract

We investigate the queue stability in Energy Harvesting Sensor (EHS) nodes under indoor conditions wherein solar energy equipped EHS nodes are deployed for intrusion detection. We implement two policies, namely Throughput Optimal and Greedy and test the conditions under which they ensure queue stability. Energy and Data are injected following a distribution. An important observation is the use of “mean harvested energy” in proposed policies. Presently it does not seem practical to use this term, but works well when nodes have a priori knowledge of its value. Our results indicate that exponential arrival of data and energy offers maximum stability under these stressful conditions.