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Title: Reliability of linear WSNs: A complementary overview and analysis of impact of cascaded failures on network lifetime
Authors: Carsancakli, Muhammed Fatih
Imran, Md Abdullah Al
Yildiz, Huseyin Ugur
Kara, Ali
Tavlı, Bülent
Keywords: Linear wireless sensor networks
Cascaded failures
Network lifetime optimization
Data packet size
Transmission power level
Wireless Sensor Networks
Packet Size Optimization
Issue Date: 2022
Publisher: Elsevier
Source: Carsancakli, M. F., Al Imran, M. A., Yildiz, H. U., Kara, A., & Tavli, B. (2022). Reliability of linear WSNs: A complementary overview and analysis of impact of cascaded failures on network lifetime. Ad Hoc Networks, 131, 102839.
Abstract: Linear Wireless Sensor Networks (LWSNs) are used in applications where deployment scenarios necessitate sensor nodes to be placed over a line topology. However, such a deployment raises reliability concerns because almost all the nodes in the network are critical with respect to the survivability of the LWSN. It is possible that an LWSN can stay connected even if a subset of the nodes are eliminated, yet, the potential reduction in Network Lifetime (NL) due to such an occurrence can be significant. In this study, after presenting a concise survey of the literature on LWSN reliability, we present an elaborate optimization framework to model the operation of an LWSN, which is built upon a comprehensive system model. Our framework encompasses three transmission power and packet size assignment strategies, which are instrumental in characterizing LWSN behavior. Furthermore, we utilized two-node failure models (i.e., random and coordinated) to assess the vulnerability of LWSNs from multiple perspectives. The results of this study reveal that the impact of coordinated node failures on NL is more severe than the impact of random node failures to such extent that in strongly connected LWSNs, the percentage decrease in NL due to coordinated node failures can be more than a magnitude higher than the NL decrease due to random node failures.
ISSN: 1570-8705
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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