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Analytical Modeling of Multi-hop IEEE 802.15.4 Networks
KTH, School of Electrical Engineering (EES), Automatic Control.
KTH, School of Electrical Engineering (EES), Automatic Control.
KTH, School of Electrical Engineering (EES), Automatic Control.ORCID iD: 0000-0001-9810-3478
KTH, School of Electrical Engineering (EES), Automatic Control.ORCID iD: 0000-0001-9940-5929
2012 (English)In: IEEE Transactions on Vehicular Technology, ISSN 0018-9545, E-ISSN 1939-9359, Vol. 61, no 7, 3191-3208 p.Article in journal (Refereed) Published
Abstract [en]

Many of existing analytical studies of the IEEE 802.15.4 medium access control (MAC) protocol are not adequate because they are often based on assumptions such as homogeneous traffic and ideal carrier sensing, which are far from reality for multi-hop networks, particularly in the presence of mobility. In this paper, a new generalized analysis of the unslotted IEEE 802.15.4 MAC is presented. The analysis considers the effects induced by heterogeneous traffic due to multi-hop routing and different traffic generation patterns among the nodes of the network and the hidden terminals due to reduced carrier-sensing capabilities. The complex relation between MAC and routing protocols is modeled, and novel results on this interaction are derived. For various network configurations, conditions under which routing decisions based on packet loss probability or delay lead to an unbalanced distribution of the traffic load across multi-hop paths are studied. It is shown that these routing decisions tend to direct traffic toward nodes with high packet generation rates, with potential catastrophic effects for the node's energy consumption. It is concluded that heterogeneous traffic and limited carrier-sensing range play an essential role on the performance and that routing should account for the presence of dominant nodes to balance the traffic distribution across the network.

Place, publisher, year, edition, pages
2012. Vol. 61, no 7, 3191-3208 p.
Keyword [en]
Hidden terminals, IEEE 802.15.4, medium access control (MAC), multi-hop
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-103972DOI: 10.1109/TVT.2012.2201221ISI: 000308967100025Scopus ID: 2-s2.0-84866497227OAI: oai:DiVA.org:kth-103972DiVA: diva2:563107
Funder
Swedish Research CouncilICT - The Next Generation
Note

QC 20121029

Available from: 2012-10-29 Created: 2012-10-25 Last updated: 2017-12-07Bibliographically approved

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Fischione, CarloJohansson, Karl Henrik

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