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Identifier

000423793

Title

Decentralized online network performance monitoring for wireless sensor/actuator networks

Alternative Title

Αποκεντρωμένη επιγραμμική παρακολούθηση επιδόσεων δικτύου για ασύρματα δίκτυα αισθητήρων / επενεργητών

Author

Τζουγκαράκης, Αντώνιος Κ.

Thesis advisor

Τσακαλίδης, Παναγιώτης

Reviewer

Δημητρόπουλος, Ξενοφώντας
Τζαγκαράκης, Γεώργιος

Abstract

Wireless Sensor Networks (WSNs) have been introduced to our daily lives in several application domains such as Smart Water, Smart Grids, Smart Homes and Health Monitoring. All these applications require the production of robust and reliable applications which are based on the WSN's optimal performance. Various factors can affect the operation of a WSN ranging from the operational space, the adopted communication protocol, the intra-network dynamics and the status of each individual node. The main goal is the unattended and the continuous operation of the network in real-life deployments. As such, characterization of the network's high-level performance when it is based exclusively on link-quality estimation can yield episodic snapshots of the performance specific point-to-point links. The objective of this thesis is to characterize network performance beyond the constraints of 1st hop neighbors and across different layers of a fully functional protocol stack, ranging from the Physical to the Transport and Application layers. Heterogeneous metrics are fused and machine learning methods provide the required means to discover patterns in the data and provide the features that are the most dominant ones by employing feature selection techniques in an unsupervised fashion. Thus, systematic study of end-to-end links' performance could provide the means for understanding the multi-dimensional behavior of an entire network.

Language

English

Subject

Network measurement and analysis

Testbeds and experimental evaluation

Unsupervised learning

Wireless sensor networks

Δοκιμαστικές μονάδες και πειραματική αξιολόγηση

Μέτρηση και ανάλυση δικτύων

Μη εποπτευόμενη μάθηση

Issue date

2019-07-26