Time synchronization in Wireless Sensor Networks
Krzysztof Daniluk · Annals of Computer Science and Information Systems · 2013
In this paper a survey of selected topics concern- ing development of wireless sensor network systems, from the point of view of time synchronization algorithms, is presented and discussed. The focus is on currently used time synchroniza- tion techniques. Finally is presented a novel concept for time synchronization scheme. N accurate and consistent sense of time is essential in sensor networks, especially in wireless sensor net- works. Distributed wireless sensor networks need time syn- chronization to coordinate the communication, computation, sensing and actuation of distributed nodes. Used techniques for time synchronization, as well as the newest solution in this field are discussed. The remainder of this paper is orga- nized as follows. The reasons for using time synchronization are described in chapter II, clock and frequency issues, as well as the fundamental technique for clock synchronization are presented in chapter III, review of time synchronization algorithms for wireless sensor networks are discussed in chapter IV, packet delay model is described in chapter V, novel concept in time synchronization for wireless sensor networks is presented in chapter VI. The paper concludes in chapter VII. A