IMS Manthan (The Journal of Mgt., Comp. Science & Journalism)

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Coverage Preserving Algorithm for Visual Sensor Network


Affiliations
1 Computer Science & Engineering Department, VTU, Karnataka, India
2 Computer Engineering Department, Goa University, Goa, India
     

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Visual sensor networks (VSNs) have been attracting more and more research attention nowadays. There are applications where the spatial density of sensors is a constraint. Assuming that with the current technology the cost of a sensor is tens of times greater than the cost of embedded batteries, it will be valuable to examine whether the lifetime of the network could be increased by simply distributing extra energy to some existing nodes without introducing new nodes. In this paper an improvement to LEACH protocol is done to increase the lifetime of network. CPA is heterogeneous-aware, in the sense that election probabilities are weighted by the initial energy of a node relative to that of other nodes in the network. This prolongs the time interval before the death of the first node (stability period), which is crucial for many applications where the feedback from the sensor network must be reliable.

Keywords

LEACH, CPA, VSN
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  • Youssef Charfi, Bell Canada Naoki Wakamiya, Masayuki Murata, “Challenging issues in visual sensor networks”, in IEEE Transaction on wireless communication, 2009.

  • K.-Y. Chow, K.-S. Lui, and E. Y. Lam, “Maximizing Angle Coverage in visual sensor networks,” in IEEE Wireless Communications & Networking Conference, March 2007.

  • W. Heinzelman, A. Chandrakasan, and H.Balakrishnan, “An application specific protocol architecture for wireless microsensor networks," IEEE Transactions on Wireless Communications, vol. 1, pp. 660-670, Oct 2002.

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  • Coverage Preserving Algorithm for Visual Sensor Network

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Authors

H. H. Kenchannavar
Computer Science & Engineering Department, VTU, Karnataka, India
Gaurang S. Patkar
Computer Engineering Department, Goa University, Goa, India
U. P. Kulkarni
Computer Science & Engineering Department, VTU, Karnataka, India

Abstract


Visual sensor networks (VSNs) have been attracting more and more research attention nowadays. There are applications where the spatial density of sensors is a constraint. Assuming that with the current technology the cost of a sensor is tens of times greater than the cost of embedded batteries, it will be valuable to examine whether the lifetime of the network could be increased by simply distributing extra energy to some existing nodes without introducing new nodes. In this paper an improvement to LEACH protocol is done to increase the lifetime of network. CPA is heterogeneous-aware, in the sense that election probabilities are weighted by the initial energy of a node relative to that of other nodes in the network. This prolongs the time interval before the death of the first node (stability period), which is crucial for many applications where the feedback from the sensor network must be reliable.

Keywords


LEACH, CPA, VSN

References