Evaluation of quality of service provisioning in large-scale pervasive and smart collaborative wireless sensor and actor networks. (August 2017)

• Record Type: Journal Article
• Authors: Horvat, Goran; Zagar, Drago; Vlaovic, Jelena
• Is Part Of: Advanced engineering informatics. Volume 33(2017)
• Page Start: 258
• Page End: 273
• Publication Date: 2017-08
• Subjects: Hop count -- Latency -- Large-scale -- QoS -- WSAN; Computer-aided engineering -- Periodicals; Engineering -- Data processing -- Periodicals; 620.00285
• DOI: 10.1016/j.aei.2016.10.003
• Languages: English
• ISSNs: 1474-0346

Abstract

Abstract: With the production of low cost sensors, classical concept of Wireless Sensor Networks (WSNs) evolved into large-scale concept hosting thousands of nodes within a network and generating abundant quantities of data. As these networks are being continuously developed a new class of WSNs are proposed: Wireless Sensor and Actor Networks (WSANs). These networks introduce the actuating component, alongside with the sensing component, where QoS is becoming a very significant factor. The authors of this paper approach the problem of QoS support in large-scale WSAN from a physical layer, where the deployment parameters effects on QoS metrics are demystified. The analysis is formulated on two scenarios: worst case scenario (all nodes transmit data towards the network sink) and best case scenario (a single node transmits a stream of data towards a network sink). For both scenarios two routing protocols were compared, a simple flooding algorithm and a simple distance vector protocol. Also, a new relation between hop count and latency based on transmission power is observed, not reported in the available literature, resulting in a new proposed empirical latency model.