A Delay-Optimal Quorum-Based Mutual Exclusion Algorithm for Distributed Systems
IEEE Transactions on Parallel and Distributed Systems
Quorum-based asynchronous power-saving protocols for IEEE 802.11 ad hoc networks
Mobile Networks and Applications
On Efficient Clustering of Wireless Sensor Networks
DSSNS '06 Proceedings of the Second IEEE Workshop on Dependability and Security in Sensor Networks and Systems
Wireless Sensor Networks: Technology, Protocols, and Applications
Wireless Sensor Networks: Technology, Protocols, and Applications
Development of a miniature self-stabilization jumping robot
IROS'09 Proceedings of the 2009 IEEE/RSJ international conference on Intelligent robots and systems
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Hopping sensors are a type of low cost mobile sensors that are small in size, have limited capability and imprecise movement. However, their unique method of movement makes them suitable for rugged terrains. Sensors may fail when deployed in a rugged terrain or in an obstacle-abundant environment. Therefore, redundant sensors may be identified and relocated to the sensor holes. This paper addresses the problem of relocating such capability-constrained sensors in an obstructive environment. We propose an enhanced Quorum-Grid solution with Binary Splitting Message Forwarding (BSMF), which is decentralized and can detect both existing and newly appearing obstructions in the supplier and consumer cells matching process. Furthermore, a grid-based movement model is introduced for the hopping sensors. Simulation shows that our scheme significantly reduces the communication overhead and achieves relatively constant total energy consumption with varying amount of obstructions.