TREE STRUCTURED TIME SYNCHRONIZATION PROTOCOL IN WIRELESS SENSOR NETWORK

TL;DRAbstract

Wireless sensor networks (WSNs) assume a collection of tiny sensing devices connected wirelessly and which are used to observe and monitor a variety of phenomena in the real physical world. Time synchronization is an important issue in wireless sensor networks. Many applications based on these WSNs assume local clocks need to be synchronized to a common view of clock at each sensor node. Some essential limitations of sensor networks such as limited energy resources, storage, computation, and bandwidth, combined with potentially high density of nodes make traditional synchronization methods incompatible for these networks. Hence, an increasing research focus on designing synchronization schemes is required. This paper reviews existing time synchronization protocols and the need for synchronization in sensor networks and then presents the proposed algorithm to construct adhoc tree structure of sensor network along with the process of clock synchronization.

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