Partition-aware centrality measures for connectivity restoration in mobile sensor networks

Küçük Resim Yok

Tarih

2019

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Inderscience Enterprises Ltd

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

Mobile sensor networks (MSNs) often operate unattended in environments where human intervention is limited. To sustain network operations, network connectivity must be maintained at all times. However, the network can be partitioned due to random node failures. To tolerate such failures in a reactive manner, network topology can be restructured through node mobility. Minimising the mobility cost requires addressing two different challenges. First, identifying nodes to be relocated. Second, determining target locations for movement. We address the first problem by presenting three different partition-aware centrality measures based on closeness centrality, geometric centrality, and harmonic centrality. To determine the movement target, we consider the former locations of the upstream nodes so that simultaneous node failures can be tolerated with limited data collection scope. The approaches that we present in this paper not only ensure recovery but also minimise the recovery cost so that the network lifetime is extended.

Açıklama

Anahtar Kelimeler

mobile sensor networks, topology management, closeness centrality, geometric centrality, harmonic centrality, connectivity restoration, fault tolerance, mobility

Kaynak

International Journal Of Sensor Networks

WoS Q Değeri

Q4

Scopus Q Değeri

Q3

Cilt

30

Sayı

1

Künye