Daomin Yuan

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—Wireless sensor networks (WSNs) are emerging as essential and popular ways of providing pervasive computing environments for various applications. In all these environments energy constraint is the most critical problem that must be considered. Clustering is introduced to WSNs because of its network scalability, energy-saving attributes and network(More)
ZigBee is a well accepted industrial standard for wireless sensor networks based on IEEE 802.15.4. Since aiming for the application of low data rate, low price and low power consumption, ZigBee networks have the limited resources such as computation complexity and storage space. So it is especially important to design an efficient and effective routing(More)
In IEEE 802. 15. 4 sensor networks, the non-optimal selection of routes, congestion and uneven traffic distribution in tree routing can cause performance degradation. Also the imbalance in the workload can result in hotspot problems and the energy depletion of the nodes. In this paper we propose an ant based multiple cluster tree routing for 802. 15. 4(More)
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