An adaptive energy-efficient MAC protocol for wireless sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
Versatile low power media access for wireless sensor networks
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
O-MAC: A Receiver Centric Power Management Protocol
ICNP '06 Proceedings of the Proceedings of the 2006 IEEE International Conference on Network Protocols
Stabilizing mobile philosophers
Information Processing Letters
Best paper: stabilizing clock synchronization for wireless sensor networks
SSS'06 Proceedings of the 8th international conference on Stabilization, safety, and security of distributed systems
DCOSS'07 Proceedings of the 3rd IEEE international conference on Distributed computing in sensor systems
Self-stabilizing mobile node location management and message routing
SSS'05 Proceedings of the 7th international conference on Self-Stabilizing Systems
Sentries and sleepers in sensor networks
OPODIS'04 Proceedings of the 8th international conference on Principles of Distributed Systems
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Coordinating the duty cycles of nodes in low power wireless networks raises challenging stabilization issues. In this paper, we show how to maintain duty-cycle coordination across the partitions of a static network of nodes. The idea is to synchronize the wakeup times of the nodes based on information carried by mobile "token" nodes between the otherwise disconnected partitions; the stabilization challenge is to deal with the corruption of state in both the static nodes and the mobile tokens. Our basic protocol assumes zero or more token nodes traversing disconnected static nodes in a circular order without overtaking each other. Refinements of our protocol accommodate richer patterns of token traversal and speeds.