Clock drift reduction for relative time slot TDMA-based sensor networks

Author

Tjoa, R. ; Chee, K.L. ; Sivaprasad, P.K. ; Rao, S.V. ; Lim, J.G.

Author_Institution

Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore

Volume

2

fYear

2004

fDate

5-8 Sept. 2004

Firstpage

1042

Abstract

In an ad hoc sensor network clock synchronization is a serious issue as nodes in the sensor network have different clock drifts. One of the common solutions for the time synchronization among these nodes is the active transmission of time stamp messages. However this method consumes some resources and channel bandwidth, and is not suitable for resource constrained nodes in the sensor network. This work presents a novel method with minimum overhead that reduces clock drift effects in the synchronization of nodes in sensor networks using relative time-slot referencing TDMA based MAC protocol.

Keywords

synchronisation; telecommunication channels; time division multiple access; wireless sensor networks; MAC protocol; ad hoc sensor network; clock drift reduction; clock synchronization; relative time slot TDMA-based sensor network; time division multiple access; time stamp messages; time-slot referencing TDMA; Bandwidth; Clocks; Computer networks; Frequency synchronization; Intelligent sensors; Protocols; Scheduling; Sensor systems; Time division multiple access; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. 15th IEEE International Symposium on

Print_ISBN

0-7803-8523-3

Type

conf

DOI

10.1109/PIMRC.2004.1373857

Filename

1373857