Average optimality in dynamic programming with general state space
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Power management in energy harvesting sensor networks
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Joint power control, scheduling and routing for multihop energy harvesting sensor networks
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IEEE Transactions on Wireless Communications
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Utility optimal scheduling in energy harvesting networks
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Sensor activation and radius adaptation (SARA) in heterogeneous sensor networks
ACM Transactions on Sensor Networks (TOSN)
Adaptive Duty Cycle Control for Optimal Stochastic Energy Harvesting
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Utility optimal scheduling in energy-harvesting networks
IEEE/ACM Transactions on Networking (TON)
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We study a sensor node with an energy harvesting source. The generated energy can be stored in a buffer. The sensor node periodically senses a random field and generates a packet. These packets are stored in a queue and transmitted using the energy available at that time. We obtain energy management policies that are throughput optimal, i.e., the data queue stays stable for the largest possible data rate. Next we obtain energy management policies which minimize the mean delay in the queue. We also compare performance of several easily implementable sub-optimal energy management policies. A greedy policy is identified which, in low SNR regime, is throughput optimal and also minimizes mean delay.