Bounds on lifetime of cluster-based ultra-wide band wireless sensor network. (21st May 2008)

• Record Type: Journal Article
• Authors: Xu, Juan; Hong, Yong-Fa; Jiang, Chang-Jun
• Is Part Of: International journal of ad hoc and ubiquitous computing. Volume 3:Number 3(2008)
• Page Start: 159
• Page End: 166
• Publication Date: 2008-05-21
• Subjects: wireless sensor networks -- WSNs -- wireless networks -- clustering -- network lifetime -- ultra-wide band -- energy dissipation; Ubiquitous computing -- Periodicals; Embedded computer systems -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; Wireless communication systems -- Periodicals; Computer architecture -- Periodicals; 004.2
• Languages: English
• ISSNs: 1743-8225

Abstract

The asymptotic lower and upper bounds on the lifetime of cluster-based Time-Hopping Impulse Radio Ultra-Wide Band (TH-IR UWB) wireless sensor networks with n static sensor nodes randomly located on a square of area S are considered. We derive the lower and upper bounds on the lifetime of cluster-based TH-IR UWB sensor networks. The results indicate that the lifetime of cluster-based network is Θ((n/S log n)α/2), which is at least (n1/2/(log n)α-1/2) times longer than that of non-cluster-based TH-IR UWB network; thus clustering can significantly improve the network lifetime. The bounds also reveal that the network lifetime increases with node density n/S, thus the large-scale dense cluster-based TH IR UWB wireless sensor network is more practical.