Proceedings of the conference on Design, Automation and Test in Europe - Volume 1
Protocols and Architectures for Wireless Sensor Networks
Protocols and Architectures for Wireless Sensor Networks
Energy efficient routing with delay guarantee for sensor networks
Wireless Networks
Performance Evaluation of IEEE 802.15.4 Beacon-Enabled Association Process
AINAW '08 Proceedings of the 22nd International Conference on Advanced Information Networking and Applications - Workshops
PR-MAC: Path-Oriented Real-Time MAC Protocol for Wireless Sensor Network
ICESS '07 Proceedings of the 3rd international conference on Embedded Software and Systems
An Energy-Efficient and Traffic-Aware CSMA/CA Algorithm for LR-WPAN
ICESS '07 Proceedings of the 3rd international conference on Embedded Software and Systems
An Adaptive Beacon Scheduling Mechanism Using Power Control in Cluster-Tree WPANs
Wireless Personal Communications: An International Journal
Optimizing the Association Procedure for Low-Power 802.15.4 Nonbeacon Sensor Networks
NETWORKING '09 Proceedings of the 8th International IFIP-TC 6 Networking Conference
Energy-efficient routing in Wireless Sensor Networks for delay sensitive applications
International Journal of Ad Hoc and Ubiquitous Computing
Real-time quality of service with delay guarantee in sensor networks
International Journal of Sensor Networks
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The major challenge of real-time Wireless Sensor Networks stills the optimization of both constraints: energy consumption, to get long network lifetime and the communication delay, to meet real-time requirements. In the context of IEEE 802.15.4/ZigBee networks, the association procedure has a direct effect on building paths optimizing those constraints. In this paper, we are interested on the definition of an ideal approach of load balancing to fairly distribute energy consumption among nodes in IEEE 802.15.4/ZigBee WSNs. This approach leads to conserve energy of each node in order to extend the network lifetime. To be closer to this ideal, we propose new dynamic association/re-association approaches allowing path alternation relative to association criteria and their threshold parameters. The implementation of those approaches in NS2 simulator highlights the efficiency of cooperative and dynamic association criteria particularly the one based on the sum of the inverses of remaining energy. Indeed, this approach gives better results with regard to energy distribution according to ideal approach which leads to a longer lifetime. It also performs lower latency for real time communication.