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WOWMOM
2005
ACM

On Maximizing Lifetime of a Sensor Cluster

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On Maximizing Lifetime of a Sensor Cluster
We consider the energy consumed in radio transmission of a set of sensors forming a data gathering wireless network. Our objective is to enhance the lifetime of such networks by exploiting three system-level opportunities. Firstly, the number of bits to be transmitted can be reduced by taking advantage of the redundancy induced by spatio-temporal correlation in sensor data. Secondly, channel coding allows us to reduce transmission energy at the cost of increased transmission time. Thirdly, sensor nodes can be expected to operate collaboratively, allowing optimal management of distributed energy resources. Our main contribution lies in providing a framework to merge these ideas for energy conscious networking. We pose the problem of maximizing network lifetime as an optimal scheduling problem. We first consider a special case where data rate is linearly proportional to received signal power. In this scenario, we investigate both static and dynamic scheduling strategies. The optimal st...
Samar Agnihotri, Pavan Nuggehalli, H. S. Jamadagni
Added 26 Jun 2010
Updated 26 Jun 2010
Type Conference
Year 2005
Where WOWMOM
Authors Samar Agnihotri, Pavan Nuggehalli, H. S. Jamadagni
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