NDLI: A Sensor Relocation Scheme for Wireless Sensor Networks

Content Provider	IEEE Xplore Digital Library
Author	Asim, M. Mokhtar, H. Khan, M.Z. Merabti, M.
Copyright Year	2011
Abstract	In the past few years wireless sensor networks have received a greater interest in application such as disaster management, border protection, combat field reconnaissance and security surveillance. Sensor nodes are expected to operate autonomously in unattended environments and potentially in large numbers. WSNs cannot be deployed manually in a hostile or harsh environment. Thus, WSNs can be formed by dropping them from the air. However, random deployment of sensor nodes can leave holes in terms of coverage in the sensing area. Moreover, sensor nodes failure may cause connectivity loss and in some cases network partitioning. The mobile devices can be used as an orthogonal method to address the network connectivity, coverage, and network life time problems in WSNs. Mobile sensors are useful as they can move to locations that meet sensing coverage requirements. In this paper we propose a novel sensor relocation scheme where redundant mobile nodes are moved to heal coverage holes in the network. We evaluate this work by simulations and show that our approach outperforms others in terms of relocation time and total energy consumption.
Starting Page	808
Ending Page	813
File Size	262977
Page Count	6
File Format	PDF
ISBN	9781612848297
DOI	10.1109/WAINA.2011.67
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-03-22
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless sensor networks Protocols mobility Publishing wireless sensor networks sensor relocation Mobile communication Coverage Time factors Mobile computing Monitoring
Content Type	Text
Resource Type	Article

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