Coverage, Deployment, and System Lifetime in Wireless Sensor Networks
Date Issued
2007
Date
2007
Author(s)
Huang, Wei-chiang
DOI
en-US
Abstract
In wireless sensor networks, when a sensor node is active, it has three main tasks—sensing, transmission, and receiving. (Transmission includes sending self-generated data and forwarding data from other sensor nodes). Obviously, these tasks consume energy, so that the system lifetime of the network is limited. While many applications such as tracking and surveillance require a certain level of coverage, the system lifetime can be simply defined terminated when the required level of coverage can not be achieved or when the nodes can no longer connect to one another. Many research results have revealed that the system lifetime of sensor networks are related to how the level of coverage is required. On the other hand, some works focused on the energy-efficient nodes deployment strategy. Our objective is to a design a practical coverage-aware sleep scheduling algorithm and a strategy of nodes deployment that can extend the system lifetime.
Subjects
網路
無線
感測
覆蓋度
生命
部署
wireless sensor network
coverage
lifetime
deployment
Type
thesis
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