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Dijital Arşivi

Lifetime optimization using nonuniform deployment and heterogeneous sensors in wireless sensor networks

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dc.contributor Graduate Program in Computer Engineering.
dc.contributor.advisor Ersoy, Cem.
dc.contributor.author Gün, Muharrem.
dc.date.accessioned 2023-03-16T10:06:15Z
dc.date.available 2023-03-16T10:06:15Z
dc.date.issued 2007.
dc.identifier.other CMPE 2007 G86
dc.identifier.uri http://digitalarchive.boun.edu.tr/handle/123456789/12501
dc.description.abstract Wireless sensor networks consist of a large number of sensor nodes deployed in a region of interest for monitoring purposes. As sensor nodes are battery powered devices, their operation time is limited. In a multi-hop sensor network with many-toone communication characteristics, the nearer a node is to the sink, the more energy it consumes. Therefore, the nodes closest to the sink deplete their batteries faster than the others. Moreover, the network lifetime is bounded by the lifetime of these nodes, since when they fail, other nodes will no longer be connected to the sink. Unbalanced energy consumption in the network can be compensated by deploying sensors non-uniformly and using heterogeneous battery capacity sensors. This paper investigates the bene ts of topologies which exploit nonuniformity and heterogeneity. In the rst part of the thesis, we study the possibility of using di erent battery capacity nodes in di erent regions of the network. In the second part of the thesis, we consider dense networks and study how the network lifetime is a ected by using di erent densities in di erent regions of the network. The thesis shows that heterogeneous network topologies o er e cient usage of the total network energy resources. This e ciency results in signi cantly longer network lifetimes with the same total cost when variable capacity sensors or variable densities are used.
dc.format.extent 30cm.
dc.publisher Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007.
dc.subject.lcsh Wireless communication systems.
dc.subject.lcsh Sensor networks.
dc.title Lifetime optimization using nonuniform deployment and heterogeneous sensors in wireless sensor networks
dc.format.pages xii, 62 leaves;


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