Photovoltaics in the assessment of wireless sensor network reliability with changing environmental conditions

2017 ◽  
Vol 33 (8) ◽  
pp. 2239-2254 ◽  
Author(s):  
R. Kassan ◽  
E. Châtelet
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Environmental Conditions ◽  
Network Reliability ◽  
Wireless Sensor

scholarly journals Reliability Analysis of Wireless Sensor Network for Smart Farming Applications

Sensors ◽  
2021 ◽  
Vol 21 (22) ◽  
pp. 7683
Author(s):  
Marcantonio Catelani ◽  
Lorenzo Ciani ◽  
Alessandro Bartolini ◽  
Cristiano Del Rio ◽  
Giulia Guidi ◽  
...  
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Network Reliability ◽  
Low Cost ◽  
Fault Tree Analysis ◽  
Wireless Sensor ◽  
Communication Link ◽  
Coverage Area ◽  
The Real ◽  
Hardware Failures

Wireless Sensor Networks are subjected to some design constraints (e.g., processing capability, storage memory, energy consumption, fixed deployment, etc.) and to outdoor harsh conditions that deeply affect the network reliability. The aim of this work is to provide a deeper understanding about the way redundancy and node deployment affect the network reliability. In more detail, the paper analyzes the design and implementation of a wireless sensor network for low-power and low-cost applications and calculates its reliability considering the real environmental conditions and the real arrangement of the nodes deployed in the field. The reliability of the system has been evaluated by looking for both hardware failures and communication errors. A reliability prediction based on different handbooks has been carried out to estimate the failure rate of the nodes self-designed and self-developed to be used under harsh environments. Then, using the Fault Tree Analysis the real deployment of the nodes is taken into account considering the Wi-Fi coverage area and the possible communication link between nearby nodes. The findings show how different node arrangements provide significantly different reliability. The positioning is therefore essential in order to obtain maximum performance from a Wireless sensor network.

scholarly journals Disjoint Spanning Tree Based Reliability Evaluation of Wireless Sensor Network

Sensors ◽  
2020 ◽  
Vol 20 (11) ◽  
pp. 3071
Author(s):  
Sonam Lata ◽  
Shabana Mehfuz ◽  
Shabana Urooj ◽  
Asmaa Ali ◽  
Nidal Nasser
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Spanning Tree ◽  
Large Scale ◽  
Spanning Trees ◽  
Network Reliability ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Stable Operation ◽  
Communication Reliability

Wireless sensor networks (WSNs) are becoming very common in numerous manufacturing industries; especially where it is difficult to connect a sensor to a sink. This is an evolving issue for researchers attempting to contribute to the proliferation of WSNs. Monitoring a WSN depends on the type of collective data the sensor nodes have acquired. It is necessary to quantify the performance of these networks with the help of network reliability measures to ensure the stable operation of WSNs. Reliability plays a key role in the efficacy of any large-scale application of WSNs. The communication reliability in a wireless sensor network is an influential parameter for enhancing network performance for secure, desirable, and successful communication. The reliability of WSNs must incorporate the design variables, coverage, lifetime, and connectivity into consideration; however, connectivity is the most important factor, especially in a harsh environment on a large scale. The proposed algorithm is a one-step approach, which starts with the recognition of a specific spanning tree only. It utilizes all other disjoint spanning trees, which are generated directly in a simple manner and consume less computation time and memory. A binary decision illustration is presented for the enumeration of K-coverage communication reliability. In this paper, the issue of computing minimum spanning trees was addressed and it is a pertinent method for further evaluating reliability for WSNs. This paper inspects the reliability of WSNs and proposes a method for evaluating the flow-oriented reliability of WSNs. Further, a modified approach for the sum-of-disjoint products to determine the reliability of WSN from the enumerated minimal spanning trees is proposed. The proposed algorithm when implemented for different sizes of WSNs demonstrates its applicability to WSNs of various scales. The proposed methodology is less complex and more efficient in terms of reliability.

Wireless sensor network reliability modelling based on masked data

2015 ◽  
Vol 17 (4) ◽  
pp. 217 ◽  
Author(s):  
Bo Zhao ◽  
Jianfeng Yang ◽  
Ming Zhao ◽  
Qi Li ◽  
Yan Liu
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Network Reliability ◽  
Wireless Sensor ◽  
Reliability Modelling
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