NDLI: Optimal transmission range and node degree for multi-hop routing in wireless sensor networks

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Optimal transmission range and node degree for multi-hop routing in wireless sensor networks

Content Provider	ACM Digital Library
Author	Hanlen, Leif W. Dallas, Daniel P.
Abstract	The energy consumed by radio transceivers is a significant factor limiting the lifetime of wireless sensor networks (WSNs). Maximizing WSN lifetime is the overall aim of this work, which proposes that optimal routing be defined with a network design that minimizes the energy consumed by transceivers. This definition of optimal routing is greatly influenced by transmission range, which is adjustable and therefore a candidate predictor or independent variable that affects the criterion, which is the need to minimize energy consumption and thereby maximize lifetime. The effects of transmission range depend on the physical dimensions and node density of the WSN being observed. This dependency binds the result to a particular design and therefore, to be more general, it is noted that transmission range directly controls neighborhood size - also known as node degree - which forms a more generic predictor of optimal routing as defined in the empirical experiments of this work. Increasing node degree saves energy by reducing hop-count. This benefit, however, is vitiated in a complicated tradeoff that is understood through a broad view of the routing behavior observed at multiple network layers. A final investigation into the primary causes of wasted energy identifies future work that will enable WSNs to reap the energy savings made possible by the improved transmission ranges available with new transceivers.
Starting Page	167
Ending Page	174
Page Count	8
File Format	PDF
ISBN	9781605586212
DOI	10.1145/1641913.1641937
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2009-10-26
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Wireless sensor network Transmission range Node degree
Content Type	Text
Resource Type	Article

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