ABSTRACT Wireless sensor actor networks are composed of sensor and actor nodes wherein sensor nodes outnumber resource-rich actor nodes. Sensor nodes gather information and send them to a central node (sink) and/or to actors for proper actions. The short lifetime of energy-constrained sensor nodes can endanger the proper operation of the whole network when they run out of power and partition the network. Energy harvesting as well as minimizing sensor energy consumption had already been studied. We propose a different approach for recharging sensor nodes by mobile actor nodes that use only local information. Sensor nodes send their energy status along with their sensed information to actors in their coverage. Based on this energy information, actors coordinate implicitly to decide on the timings and the ordering of recharges of low energy sensor nodes. Coordination between actors is achieved by swarm intelligence and the replenishment continues during local learning of actor nodes. The number of actors required to keep up such networks is identified through simulation using VisualSense. It is shown that defining the appropriate number of actor nodes is critical to the success of recharging strategies in prolonging the network lifetime.
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nullM. Sharifi, S. Sedighian and M. Kamali, "Recharging Sensor Nodes Using Implicit Actor Coordination in Wireless Sensor Actor Networks," Wireless Sensor Network, Vol. 2 No. 2, 2010, pp. 123-128. doi: 10.4236/wsn.2010.22017.
 B. P. Gerkey and M. J. Mataric, “Sold!: auction methods for multirobot coordination,” IEEE Transactions on Robotics and Automation, Vol. 18, No. 5, pp. 758–768, 2002.
C. Q. Hua and T. S. P. Yum, “Optimal routing and data aggregation for maximizing lifetime of wireless sensor networks,” IEEE-ACM Transactions on Networking, Vol. 16, No. 4, pp. 892–903, 2008.
S. Zhou, R. P. Liu and Y. J. Guo, “Energy efficient networking protocols for wireless sensor networks,” Proceedings of IEEE International Conference on Industrial Informatics, Singapore, pp. 1006–1011, 2006.
M. I. Shukur, L. S. Chyan, and V. V. Yap, “Wireless sensor networks: delay guarantee and energy efficient MAC protocols,” World Academy of Science, Engi- neering and Technology, Vol. 50, 2009.
M. H. F. Ghazvini, M. Vahabi, M. F. A. Rasid, R. S. A. R. Abdullah, and W. M. N. M. W. Musa, “Low energy consumption MAC protocol for wireless sensor networks,” Proceedings of Second International Confe- rence on Sensor Technologies and Applications, France, pp. 49–54, 2008.
K. Lin, J. Yu, J. Hsu, S. Zahedi, D. Lee, J. Friedman, A. Kansal, V. Raghunathan and M. Srivastava, “Heliomote: enabling long-lived sensor networks through solar energy harvesting,” Proceedings of 3rd International Confe- rence on Embedded Networked Sensor Systems, California, USA, pp. 309, 2005.
K. Vijayaraghavan and R. Rajamani, “Active control based energy harvesting for battery-less wireless traffic sensors: theory and experiments,” Proceedings of American Control Conference, Washington, USA, pp. 4579–4584, 2008.
L. Mateu, C. Codrea, N. Lucas, M. Pollak, and P. Spies, “Energy harvesting for wireless communication systems using thermogenerators,” Proceeding of the XXI Conference on Design of Circuits and Integrated Systems (DCIS), Barcelona, Spain, 2006.
A. LaMarca, D. Koizumi, M. Lease, S. Sigurdsson, G. Borriello, W. Brunette, K. Sikorski, and D. Fox, “Plantcare: An investigation in practical ubiquitous sys- tems,” Lecture Notes in Computer Science, Vol. 2498, pp. 316–332, 2002.
M. Rahimi, H. Shah, G. S. Sukhatme, J. Heideman, and D. Estrin, “Studying the feasibility of energy harvesting in a mobile sensor network,” Proceeding of IEEE Inter- national Conference on Robotics and Automation, Taiwan, pp. 19–24, 2003.
I. F. Akyildiz and I. H. Kasimoglu, “Wireless sensor and actor networks: research challenges,” Ad Hoc Networks, Vol. 2, No. 4, pp. 351–367, 2004.
P. Baldwin, S. Kohli, E. A. Lee, X. Liu, Y. Zhao, C. Brooks, N. V. Krishnan, S. Neuendorffer, C. Zhong, and R. Zhou, “Visualsense: visual modeling for wireless and sensor network systems,” Technical Memorandum UCB/ ERL M04/08, Electronics Research Laboratory, College of Engineering, University of California, 2004.