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Implementing clock synchronization in WSN: CS-MNS vs. FTSP

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2 Author(s)
Kunz, T. ; Syst. & Comput. Eng, Carleton Univ., Ottawa, ON, Canada ; McKnight-MacNeil, E.

A WSN consists of numerous nodes gathering observations and combining these observations. Often, the timing of these observations is of importance when processing sensor data. Thus, a need for clock synchronization arises in WSNs. The CS-MNS algorithm has been proposed to fulfil this role. This paper discusses our experiences implementing CS-MNS in TinyOS on TelosB and MICAz motes and experimentally evaluating its performance. The implemented protocol performs extremely well in single-hop scenarios and also achieves good clock synchronization in different multihop scenarios. In all scenarios, CS-MNS performs noticeably better than FTSP, the clock synchronization protocol provided with TinyOS 2.1.

Published in:

Wireless and Mobile Computing, Networking and Communications (WiMob), 2011 IEEE 7th International Conference on

Date of Conference:

10-12 Oct. 2011