TY - GEN
T1 - A framework for resilient online coverage in sensor networks
AU - Younis, Ossama
AU - Krunz, Marwan
AU - Ramasubramanian, Srinivasan
PY - 2007
Y1 - 2007
N2 - We consider surveillance applications in which sensors are deployed in large numbers to improve coverage fidelity. Previous research has studied how to select active sensor covers (subsets of nodes that cover the field) to efficiently exploit the redundant node deployment. Little attention was given to studying the tradeoff between fault tolerance and energy efficiency in sensor coverage. In this work, our objective is to rapidly restore coverage of the field under unexpected node failures. For this purpose, we explore different adaptable coverage strategies. We then propose design guidelines for applications employing distributed cover-selection algorithms to control the degree of redundancy at local regions in the field and achieve energy-efficient coverage. In addition, we develop a new distributed technique to facilitate switching between active covers without the need for node synchronization. Distributed cover selection protocols can be integrated into our framework (referred to as "resilient online coverage" (ROC)). We evaluate the effectiveness of ROC through analysis and extensive simulations.
AB - We consider surveillance applications in which sensors are deployed in large numbers to improve coverage fidelity. Previous research has studied how to select active sensor covers (subsets of nodes that cover the field) to efficiently exploit the redundant node deployment. Little attention was given to studying the tradeoff between fault tolerance and energy efficiency in sensor coverage. In this work, our objective is to rapidly restore coverage of the field under unexpected node failures. For this purpose, we explore different adaptable coverage strategies. We then propose design guidelines for applications employing distributed cover-selection algorithms to control the degree of redundancy at local regions in the field and achieve energy-efficient coverage. In addition, we develop a new distributed technique to facilitate switching between active covers without the need for node synchronization. Distributed cover selection protocols can be integrated into our framework (referred to as "resilient online coverage" (ROC)). We evaluate the effectiveness of ROC through analysis and extensive simulations.
UR - http://www.scopus.com/inward/record.url?scp=48049124381&partnerID=8YFLogxK
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U2 - 10.1109/SAHCN.2007.4292866
DO - 10.1109/SAHCN.2007.4292866
M3 - Conference contribution
AN - SCOPUS:48049124381
SN - 1424412684
SN - 9781424412686
T3 - 2007 4th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks, SECON
SP - 540
EP - 549
BT - 2007 4th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks, SECON
T2 - 2007 4th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks, SECON
Y2 - 18 June 2007 through 21 June 2007
ER -