Dynamic Power Control for Energy Harvesting Wireless Multimedia Sensor Networks

Date Added: May 2012
Format: PDF

Optimization of energy usage in Wireless Sensor Networks (WSN) has been an active research field for the last decades and various approaches have been explored. In fact, a well designed energy consumption model is the foundation for developing and evaluating a power management scheme in network of energy constrained devices such as: WSN. The authors are interested in developing optimal centralized power control policies for energy harvesting Wireless Multimedia Sensor Networks (WMSN) equipped with photovoltaic cells. They propose a new complete information Markov decision process model to characterize sensor's battery discharge/recharge process and inspect the structural properties of optimal transmit policies.