Time synchronization in sensor networks and underwater sensor networks

This chapter presents methods for synchronization of time and data in sensor networks and underwater sensor networks. The ability to synchronize nodes in a wireless network is a very important factor for energy efficiency and successful data transfer. Synchronizing each node will help maintain unnecessary energy loss due to lost and retransmitted data. Several protocols, such as pair-wise and global time synchronizing, distributed and centralized time synchronizing, etc., are covered throughout this chapter. Security synchronization protocols for controlling attacks on wireless sensor networks are also covered.