Relocating sensor nodes to maximize cumulative connected coverage in wireless sensor networks
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Dosyalar
Tarih
2008-04
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Molecular Diversity Preservation Int
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In order to extend the availability of the wireless sensor network and to extract maximum possible information from the surveillance area, proper usage of the power capacity of the sensor nodes is important. Our work describes a dynamic relocation algorithm called MaxNetLife, which is mainly based on utilizing the remaining power of individual sensor nodes as well as properly relocating sensor nodes so that all sensor nodes can transmit the data they sense to the sink. Hence, the algorithm maximizes total collected information from the surveillance area before the possible death of the sensor network by increasing cumulative connected coverage parameter of the network. A deterministic approach is used to deploy sensor nodes into the sensor field where Hexagonal Grid positioning is used to address and locate each sensor node. Sensor nodes those are not planned to be actively used in the close future in a specific cell are preemptively relocated to the cells those will be in need of additional sensor nodes to improve cumulative connected coverage of the network. MaxNetLife algorithm also includes the details of the relocation activities, which include preemptive migration of the redundant nodes to the cells before any coverage hole occurs because of death of a sensor node. Relocation Model, Data Aggregation Model, and Energy model of the algorithm are studied in detail. MaxNetLife algorithm is proved to be effective, scalable, and applicable through simulations.
Açıklama
Anahtar Kelimeler
Wireless Sensor Network, Mobility, Clustering, Network lifetime, Sensor nodes, Barrier coverage, Coverage holes, Data aggregation, Deterministic approach, Dynamic relocation, Redundant nodes, Remaining power, Algorithms, Carrier mobility, Sensor nodes
Kaynak
Sensors
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
8
Sayı
4
Künye
Coşkun, V. (2008). Relocating sensor nodes to maximize cumulative connected coverage in wireless sensor networks. Sensors, 8(4), 2792-2817. doi:10.3390/s8042792
