Analysis and Experimental Evaluation of IEEE 802.15.4e TSCH CSMA-CA Algorithm
Autor: | Simon Duquennoy, Giuseppe Anastasi, Thiemo Voigt, Beshr Al Nahas, Domenico De Guglielmo |
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Rok vydání: | 2017 |
Předmět: |
Computer Networks and Communications
Computer science Aerospace Engineering Access control 02 engineering and technology 0203 mechanical engineering TSCH 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering IEEE 802.15 Wireless network business.industry Network packet ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Testbed Transmitter 020302 automobile design & engineering 020206 networking & telecommunications Energy consumption IEEE 802.15.4e Capture effect IEEE 802.15.4e TSCH Capture effect WSANs Automotive Engineering business Algorithm Carrier sense multiple access with collision avoidance WSANs Communication channel Efficient energy use Computer network |
Zdroj: | IEEE Transactions on Vehicular Technology. 66:1573-1588 |
ISSN: | 1939-9359 0018-9545 |
Popis: | Time-slotted channel hopping (TSCH) is one of the medium access control (MAC) behavior modes defined in the IEEE 802.15.4e standard. It combines time-slotted access and channel hopping , thus providing predictable latency, energy efficiency, communication reliability, and high network capacity. TSCH provides both dedicated and shared links. The latter is special slots assigned to more than one transmitter, whose concurrent access is regulated by a carrier-sense multiple access with collision avoidance (CSMA-CA) algorithm. In this paper, we develop an analytical model of the TSCH CSMA-CA algorithm to predict the performance experienced by nodes when using shared links. The model allows for deriving a number of metrics, such as delivery probability, packet latency, and energy consumption of nodes. Moreover, it considers the capture effect (CE) that typically occurs in real wireless networks. We validate the model through simulation experiments and measurements in a real testbed. Our results show that the model is very accurate. Furthermore, we found that the CE plays a fundamental role as it can significantly improve the performance experienced by nodes. |
Databáze: | OpenAIRE |
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