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Publisher DOI: 10.1186/s13638-018-1146-x
Title: An analytical model for wireless mesh networks with collision-free TDMA and finite queues
Language: English
Authors: Kauer, Florian  
Turau, Volker 
Keywords: wireless mesh networks;time division multiple access;scheduling;IEEE 802.15.4;TSCH
Issue Date: 14-Jun-2018
Publisher: Springer
Source: EURASIP Journal on Wireless Communications and Networking 1 (2018): - (2018)
Journal or Series Name: EURASIP journal on wireless communications and networking 
Abstract (english): Wireless mesh networks are a promising technology for connecting sensors and actuators with high flexibility and low investment costs. In industrial applications, however, reliability is essential. Therefore, two time-slotted medium access methods, DSME and TSCH, were added to the IEEE 802.15.4 standard. They allow collision-free communication in multi-hop networks and provide channel hopping for mitigating external interferences. The slot schedule used in these networks is of high importance for the network performance. This paper supports the development of efficient schedules by providing an analytical model for the assessment of such schedules, focused on TSCH. A Markov chain model for the finite queue on every node is introduced that takes the slot distribution into account. The models of all nodes are interconnected to calculate network metrics such as packet delivery ratio, end-to-end delay, and throughput. An evaluation compares the model with a simulation of the Orchestra schedule. The model is applied to Orchestra as well as to two simple distributed scheduling algorithms to demonstrate the importance of traffic-awareness for achieving high throughput.
DOI: 10.15480/882.1762
ISSN: 1687-1499
Institute: Telematik E-17 
Type: (wissenschaftlicher) Artikel
Project: Open Access Publizieren 2018 - 2019 / TU Hamburg 
Open-Source Implementierung des IEEE 802.15.4 DSME Link Layers (openDSME) 
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
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