NDLI: Energy Efficient Search in Sensor Networks Using Simple Random Walks with Level Biased Steps

Content Provider	IEEE Xplore Digital Library
Author	Rachuri, K.K. Murthy, C.
Copyright Year	2009
Abstract	Random walk is one of the widely used techniques for information discovery in unstructured networks like Ad hoc Wireless Networks (AWNs) and Wireless Sensor Networks (WSNs). In a Random walk, instead of taking all steps uniform randomly, our idea is to modify Random walk to take some level biased steps to improve its energy efficiency and latency which are important design parameters in WSNs. The level of a node is defined as the minimum number of hops required for a packet to reach the sink node from that node. We propose two walk based search protocols viz., Several Short Random Walks (SSRW) search and Random Walk with Level Biased Jumps (RWLBJ) search, that use a combination of uniform random and level biased steps for energy efficient search in WSNs. The idea is that the biased steps in the proposed protocols decrease the correlation among visited sensor nodes which increases the node coverage of the protocols. We show by theoretical analysis that using biased steps in Random walks increases their efficiency in terms of energy consumption and latency of search. We also show by extensive simulations that SSRW and RWLBJ are better choices compared to that of pure Random walk in terms of the energy consumption and latency of search.
Starting Page	178
Ending Page	185
File Size	250951
Page Count	8
File Format	PDF
ISBN	9780769536606
ISSN	15450678
DOI	10.1109/ICDCSW.2009.21
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-22
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Energy efficiency Wireless sensor networks Delay Protocols Energy consumption Temperature sensors Query processing Distributed computing Conferences Sensor systems Information Discovery Wireless Sensor Networks Biased Random Walks Energy Efficiency Query Processing Search
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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