Coexistence issues of multiple co-located IEEE 802.15. 4/ZigBee networks running on adjacent radio channels in industrial environments

TitleCoexistence issues of multiple co-located IEEE 802.15. 4/ZigBee networks running on adjacent radio channels in industrial environments
Publication TypeJournal Article
Year of Publication2009
AuthorsLo Bello, L., and Toscano, E.
JournalIEEE Transactions on Industrial Informatics
Volume5
Issue2
Pagination157–167
Date Published05/2009
Abstract

The characteristics of the IEEE 802.15.4 physical and medium access layers make such a protocol a suitable candidate to support communication between sensors and actuators in industrial environments. As industrial networks may comprise a large number of sensors and actuators and the delay increases with the increased number of nodes, a possible solution to keep the delay small is the use of multiple radio channels to implement different small low-latency communication cells. Although in IEEE 802.15.4 the radio channels do not overlap, recent literature showed that some interference may actually occur. This paper provides a better understanding of cross-channel interference in co-located IEEE 802.15.4 industrial networks and proposes a general methodology for the assessment of IEEE 802.15.4 performance under different cross-channel interference conditions. This methodology allows a network designer to perform on-site but accurate assessments and can be easily deployed in real industrial environments to perform measurements directly in the environment-under-test. A case study based on COTS IEEE 802.15.4 devices is presented to show how to apply our methodology to a real scenario and to discuss the results obtained with one or multiple interferers and varying some MAC level parameters.

URLhttp://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4895702
DOI10.1109/TII.2009.2018541