Optimizing Sensor Count in Layered Wireless Sensor Networks
Volume 5, Number 3, April 2009 - Paper SC13 - pp. 296-298
ANKIT PARIKH1, HEMANT JOSHI2, LIUDONG XING3, VINOD M. VOKKARANE3, and HONG LIU31ClinicalWorks, 110 Turnpike Road, Westborough, MA 01581, USA
2VMware, 4301 Hillview Ave, Palo Alto, CA 94304, USA
3Univ. of Massachusetts Dartmouth, 285 Old Westport Rd, Dartmouth, MA 02747, USA
(Received on May 16, 2008, revised on December 30, 2008)
Due to severely constrained resources, sensor nodes are subject to frequent failures. Therefore, wireless sensor networks (WSN) are typically designed with a large number of redundancies to achieve fault tolerance and to maintain the desired network lifetime and coverage. This work proposes an equation to determine the optimal number of redundant sensor nodes required in each layer of a WSN with the layered structure. Matlab simulations are used to verify the proposed equation.
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