Performance Optimization of Reconfigurable Real-Time Wireless Sensor Networks

Gasmi, Maroua; Mosbahi, Olfa; Khalgui, Mohamed; Gomes, Luís; Li, Zhiwu

doi:10.1109/tsmc.2018.2824900

Cited by 12 publications

(5 citation statements)

References 41 publications

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“…In recent years, cooperative communication through beamforming has attracted the attention of a large number of researchers. Many schemes have been proposed for beam formation 11–18 and its effective use in energy efficiency, 19–24 power optimization, 25 and node localization. 26 However, to the best of our knowledge, the use of cooperative beamforming in the reconnectivity of abandoned general-purpose nodes with no extraordinary smart antenna facility, trapped in a disconnected cluster of a WSN, has not been incorporated so far.…”

Section: Related Workmentioning

confidence: 99%

Toward connectivity of a disconnected cluster in partitioned wireless sensor network for time-critical data collection

Nasr

Khan

2020

International Journal of Distributed Sensor Networks

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Reliable network connectivity is one of the major design issues in the context of wireless sensor networks. These networks have diverse communication patterns due to non-uniform sensing activities at various locations in the environment being monitored. In such scenarios, some nodes lying in high-traffic zones may consume more energy and eventually die out resulting in network partitioning. This gives rise to a situation in which alive nodes are trapped in a disconnected cluster, and they do not have enough radio range to communicate their data to the destination (i.e. a sink or a relay node connected to the main part of the network). This phenomenon may deprive a large number of alive nodes of sending their important time-critical data to the sink. In this article, we propose a virtual antenna–based cooperative beamforming approach for retrieving valuable data from these disconnected nodes. In the proposed approach, the sensor nodes in an isolated partition work together to form a directional beam. This directional beam significantly increases their overall communication range to reach out to a distant relay node which is connected to the main part of the network. The proposed approach of cooperative beamforming–based partition connectivity is more effective when a cluster with a favorably large number of nodes gets partitioned. Furthermore, a beamforming-based mechanism is proposed for a disconnected cluster to locate the nearest relay node which is still connected to the sink and to reconnect itself to the main part of the network via the most adjacent relay node for time-critical data transmission. The proposed mechanism is then evaluated through simulation results.

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Section: Related Workmentioning

confidence: 99%

Toward connectivity of a disconnected cluster in partitioned wireless sensor network for time-critical data collection

Nasr

Khan

2020

International Journal of Distributed Sensor Networks

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“…The works reported in [33], [43], [46], and [167] develop a reconfigurable controller area network under real-time and energy constraints for a didactics vehicle at university of Carthage in Tunisia. The work reported in [6] develops a reconfigurable embedded system based on wireless sensor networks for controlling an automobile journey. The works reported in [7] and [12] develop reconfigurable embedded systems for smart grids.…”

Section: Deployment and Hardware Testmentioning

confidence: 99%

“…Nowadays the reconfiguration becomes a main requirement for future flexible systems in various fields such as in internet of things [6] for optimizing the QoS, in smart grids [7] for improving QoS and increasing the use of renewable energy [8], in transportation systems [9] for improving the control quality, in medical platforms [10] for high quality of surgery, in manufacturing industry for improving the production lines performance [11], in intelligent platforms [12] for improving their reactivity or security [13] (Figure 1). The global problem of our research works in the recent decade is to develop reconfigurable discrete-event systems under related constraints described in user requirements.…”

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confidence: 99%

On Reconfiguration Theory of Discrete-Event Systems: From Initial Specification Until Final Deployment

Khalgui

Mosbahi

2019

IEEE Access

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This paper presents an overview on different research activities that we did in the recent decade for developing reconfigurable discrete-event systems (RDESs) from initial high-level specification according to user requirements until final low-level deployment in target hardware components. A reconfiguration is any run-time scenario that adapts the system's behavior to any evolution in the related environment by adding or removing services or also configuring their parameters, i.e., their frequency, execution time, or also their location in the considered hardware architecture. Since the development of distributed RDESs under functional and extra-functional constraints is required by experts, we propose a complete methodology that deals first with their initial design with a new general profile named R-UML extending unified modeling language (UML) or also with new specific technology-oriented profiles, the validation of the related models with a new language R-OCL extending object constraint language (OCL), before their transformation to formal formalisms, such as Petri nets, timed automata, or B method for simulation or also formal verification of different properties. The checked models are transformed into OS reconfigurable tasks in the operational level, before applying a co-design methodology under functional, real-time, memory, and energy constraints for minimizing redundancies in tasks and for optimizing the composition of software and hardware parts together. We describe technology-oriented solutions for the scheduling of distributed RDESs by parameterizing tasks and their exchanged messages between multi-speed networked processors. We finish with the real low-level deployment on target hardware devices before applying useful software and hardware tests for checking the delivered system quality. These contributions, published in different journal and conference papers, are applied to different applications in medicine, wireless sensor networks, transportation systems, manufacturing industry, smart grids and microgrids, embedded technologies, and so on. We find significant gains in terms of the system reactivity and flexibility under related constraints. INDEX TERMS Discrete-event system, modeling and verification, design and validation, implementation and scheduling, real-time and energy aware scheduling, test and simulation, co-design and deployment, application. I. INTRODUCTION Automatic flexibility becomes a required criterion for dynamic system adaptability to any possible evolution in related environment. A reconfigurable system is considered in this paper as a discrete-event system (RDES) that adapts its behavior to recover faults or also improve required performance at run-time. It is a set of wired/wireless networked devices that run independent/dependent control software tasks exchanging messages on the network [1], [2]. These tasks and consequently the related messages should be executed under functional, memory, real-time, and energy constraints described in user requirements [3]-[5]. A reconfi...

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“…As a research group 2018, [17], developed a metamorphosis of the internal architecture of the sensor nodes, also to any change the policy communication between the nodes aiming to adjust the network, this work improved the energy and real-time constraints.…”

Section: Related Workmentioning

confidence: 99%

Implementing a reconfigurable Internet of Things Nodes using non-IP network based on Wireless Sensor Network

Rijab

Sadiq

2019

DJES

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The idea of using wireless sensor network (WSN) let’s as to upload multiple node’s data over one IP, to reduce the number of needed IP multiple nodes, it’s necessary to provide a backup sink for the data to let the sensors send their data via the link B when the link A is down. Therefore a web-portal has been designed with a debug terminal for the proposed IoT system to let us reconfigure the nodes and change the path of the wireless sensor network data. Two sink-nodes has been implemented for the proposed system, first one (A) for major data path that collected the data from sensors and uploads it to the web-portal and the second one (B) acts as a backup link for the data path. In the proposed system, we used the esp33 as a Wi-Fi connection for the wireless sensor network, and the NRF24 wireless transceiver module used to send the data from nodes to esp32

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Performance Optimization of Reconfigurable Real-Time Wireless Sensor Networks

Cited by 12 publications

References 41 publications

Toward connectivity of a disconnected cluster in partitioned wireless sensor network for time-critical data collection

Toward connectivity of a disconnected cluster in partitioned wireless sensor network for time-critical data collection

On Reconfiguration Theory of Discrete-Event Systems: From Initial Specification Until Final Deployment

Implementing a reconfigurable Internet of Things Nodes using non-IP network based on Wireless Sensor Network

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