Multi-Channel Cluster Tree for 802.15.4 Wireless Sensor Networks

Abstract : We propose MCCT (Multi-Channel Cluster Tree), a cluster-tree construction protocol for nodes in IEEE 802.15.4 beacon-enabled mode. By multiplexing transmissions across orthogonal channels, we reduce collisions between control and data frames, which leads to better packet delivery rate and fairness. We propose a method for constructing a cluster-tree suitable for minimizing beacon collisions. The protocol builds on a neighbor discovery procedure that uses a dedicated control channel while still sticking to the superframe structure of IEEE 802.15.4. We also specify a channel assignment and superframe scheduling method that takes into account channel diversity. We evaluate the proposed protocol through simulation and compare with other proposals: standard 802.15.4 and a representative of distributed solutions to the superframe scheduling problem - MeshMAC. The simulation results show that MCCT significantly improves packet delivery ratio, delay, and fairness. It also results in very good packet delivery ratio for increased network density.
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Nazim Abdeddaim, Fabrice Theoleyre, Franck Rousseau, Andrzej Duda. Multi-Channel Cluster Tree for 802.15.4 Wireless Sensor Networks. PIMRC 2012 - 23rd IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Sep 2012, Sydney, Australia. IEEE, pp.590 - 595, 2012, 〈10.1109/PIMRC.2012.6362853〉. 〈hal-00931042〉



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