Bounds on lifetime of cluster-based ultra-wide band wireless sensor network

Authors:
Juan Xu;Yong-Fa Hong;Chang-Jun Jiang
Affiliations:
School of Electronics and Information Engineering, Tong-Ji University, Shanghai, 200092, China.;School of Electronics and Information Engineering, Tong-Ji University, Shanghai, 200092, China.;School of Electronics and Information Engineering, Tong-Ji University, Shanghai, 200092, China
Venue:
International Journal of Ad Hoc and Ubiquitous Computing
Year:
2008

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Abstract

The asymptotic lower and upper bounds on the lifetime ofcluster-based Time-Hopping Impulse Radio Ultra-Wide Band (TH-IRUWB) wireless sensor networks with n static sensor nodes randomlylocated on a square of area S are considered. We derive the lowerand upper bounds on the lifetime of cluster-based TH-IR UWB sensornetworks. The results indicate that the lifetime of cluster-basednetwork is Θ((n/S log n)α), which is atleast (n1/2/(log n)α-1/2) times longerthan that of non-cluster-based TH-IR UWB network; thus clusteringcan significantly improve the network lifetime. The bounds alsoreveal that the network lifetime increases with node density n/S,thus the large-scale dense cluster-based TH IR UWB wireless sensornetwork is more practical.