Title :
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
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;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. 15th IEEE International Symposium on
Print_ISBN :
0-7803-8523-3
DOI :
10.1109/PIMRC.2004.1373857
