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Analytical modeling of spatial variation of energy dissipation in cluster-based wireless sensor networks | IEEE Conference Publication | IEEE Xplore

Analytical modeling of spatial variation of energy dissipation in cluster-based wireless sensor networks


Abstract:

Wireless sensor network protocols commonly use clustering to reduce the rate of energy dissipation in the system. With this technique, some nodes are selected as cluster ...Show More

Abstract:

Wireless sensor network protocols commonly use clustering to reduce the rate of energy dissipation in the system. With this technique, some nodes are selected as cluster heads and the remaining as member nodes so that cluster heads mainly use energy transmitting to the base station and member nodes transmitting to their cluster head. For the latter, the amount of energy used depends on the distance to the nearest cluster head, which in turn depends on the node's position in the field. The cluster head of nodes near the edge is farther away on average than cluster heads of nodes near the center, resulting in uneven energy dissipation. This unevenness has an important impact on sensor coverage as node lifetime is shorter near to the edge of the field than in the center. In this paper we present an analytical model for both the distance to the nearest cluster head as a function of a node's position within the field and for energy use. Such an analytical model makes it easy for researchers to determine the impact of spatial factors such as edge effects and base station position without incurring the cost of simulation.
Date of Conference: 28-31 March 2011
Date Added to IEEE Xplore: 27 May 2011
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Conference Location: Cancun, Mexico

References

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