NDLI: Arbutus: Network-Layer Load Balancing for Wireless Sensor Networks

Content Provider	IEEE Xplore Digital Library
Author	Puccinelli, D. Haenggi, M.
Copyright Year	2008
Description	Author affiliation: Univ. of Notre Dame, Notre Dame (Puccinelli, D.; Haenggi, M.)
Abstract	The hot spot problem is a typical byproduct of the many-to-one traffic pattern that characterizes most wireless sensor networks: the nodes with the best channel to the sink are overloaded with traffic from the rest of the network and experience a faster energy depletion rate than their peers. Routing protocols for sensor networks typically use a reliability metric to avoid lossy links and thus directly exacerbate the problem. Significant advantages can be obtained by embedding a load balancing scheme at the network layer, as we show with the design and implementation of Arbutus, a novel routing protocol for wireless sensor networks with a built-in load balancing scheme. By imposing a special structure on the collection tree, privileging longer hops, and accounting for network load in the route selection process, Arbutus reduces the impact of hot spots on network lifetime without a deterioration of the end-to-end reliability performance. An implementation of Arbutus on Berkeley motes and the MoteLab testbed shows a 30% reduction in the network traffic load needed to achieve the same packet delivery rate as an existing mote-oriented protocol. This provides key benefits such as a significant lifetime gain and increased fault tolerance.
Starting Page	2063
Ending Page	2068
File Size	134618
Page Count	6
File Format	PDF
ISBN	9781424419975
ISSN	15253511
DOI	10.1109/WCNC.2008.366
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-03-31
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Load management Wireless sensor networks Peer to peer computing Routing protocols Telecommunication traffic Relays Testing Communications Society Information processing Laboratories
Content Type	Text
Resource Type	Article

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