IEEE Transactions on Wireless Communications
Energy-efficient estimation of clock offset for inactive nodes in wireless sensor networks
IEEE Transactions on Information Theory
IEEE Transactions on Communications
IEEE Transactions on Signal Processing
WASA'11 Proceedings of the 6th international conference on Wireless algorithms, systems, and applications
Average time synchronization in wireless sensor networks by pairwise messages
Computer Communications
Querying context maps using relative timing predicates in pervasive environments
Proceedings of the 6th International Workshop on Middleware Tools, Services and Run-time Support for Networked Embedded Systems
A time synchronization method for wireless sensor networks
ICICA'12 Proceedings of the Third international conference on Information Computing and Applications
Computer Networks: The International Journal of Computer and Telecommunications Networking
Distributed routing for signal detection in wireless sensor networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
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This letter proposes an energy-efficient clock synchronization scheme for Wireless Sensor Networks (WSNs) based on a novel time synchronization approach. Within the proposed synchronization approach, a subset of sensor nodes are synchronized by overhearing the timing message exchanges of a pair of sensor nodes. Therefore, a group of sensor nodes can be synchronized without sending any extra messages. This paper brings two main contributions: 1. Development of a novel synchronization approach which can be partially or fully applied for implementation of new synchronization protocols and for improving the performance of existing time synchronization protocols. 2. Design of a time synchronization scheme which significantly reduces the overall network-wide energy consumption without incurring any loss of synchronization accuracy compared to other well-known schemes.