Energy and delay analysis of contention resolution mechanisms for machine-to-machine networks based on low-power WiFi
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Attaining very high energy efficiency is one of the big challenges to implement Machine-to-Machine (M2M) networks whose lifetime (without human intervention) must be measured in years. In this paper, we consider a synchronized duty-cycled M2M network composed of a large number of devices that periodically wake up their radio interfaces to transmit data to a coordinator. We theoretically analyze the delay and energy efficiency of two contention-based Medium Access Control (MAC) protocols for this kind of networks. One protocol is based on Frame Slotted ALOHA, and the other is based on a tree-splitting contention resolution algorithm. Computer-based simulations have been carried out to ensure the accuracy of the theoretical models and to evaluate and compare the performance of the two alternatives for M2M applications based on low power Wi-Fi devices.
CitationVázquez, F.; Alonso-Zárate, J.; Alonso, L. Energy and delay analysis of contention resolution mechanisms for machine-to-machine networks based on low-power WiFi. A: IEEE International Conference on Communications. "2013 IEEE International Conference on Communications (ICC)". Budapest: 2013, p. 2235-2240.
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