The use of symmetric multi-way two phase ranging to compensate time drift in wireless sensor network

This paper studies the impact of crystal clock drift on the ranging accuracy. A novel technique in which a group of sensor devices, each having a different clock drift, can reduce this adverse effect by a 2-phase round robin fashion is presented. In comparison to the conventional way of point-to-poi...

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Bibliographic Details
Published in:IEEE transactions on wireless communications 2009-02, Vol.8 (2), p.613-616
Main Authors: Lee, J.X., Lin, Z.W., Chin, P.S., Law, C.L.
Format: Article
Language:English
Subjects:
Applied sciences
Clocks
Containers
Crystals
Design of experiments
Detection, estimation, filtering, equalization, prediction
Drift
Energy consumption
Exact sciences and technology
Hardware
Information, signal and communications theory
localization
Logistics
Networks
Peer to peer computing
Ranging
Round robin
Sensors
Services and terminals of telecommunications
Signal and communications theory
Signal, noise
Simulation
Synchronization
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Telemetry. Remote supervision. Telewarning. Remote control
time drift
Timing
Wireless communication
wireless sensor network
Wireless sensor networks
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Description
Summary:This paper studies the impact of crystal clock drift on the ranging accuracy. A novel technique in which a group of sensor devices, each having a different clock drift, can reduce this adverse effect by a 2-phase round robin fashion is presented. In comparison to the conventional way of point-to-point group ranging scheme, this technique has the desirable advantage of low energy consumption, which is a very important requirement in wireless sensor networks. The ability to reduce the effect of timing drift is illustrated in the simulation results where our proposed method outperforms prior works under the effect of clock drift on the ranging accuracy.
ISSN:1536-1276
1558-2248
DOI:10.1109/TWC.2009.071264