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In recent, ZigBee is considered as a potential solution for a scalable and flexible home automation systems. However, several constraints of the ZigBee might create node failure or frequent link breakages and thus some nodes in the network might become orphans. This orphan problem of ZigBee might bring a big confusion to a home automation environment in which a number of consumer devices are interconnected in the multi-hop manner. Therefore, in this paper, an enhanced self-configuration (ESC) scheme is proposed, which can improve the robustness of the conventional ZigBee-based home automation systems by coping well with orphan propagation problem and dynamic error environments. Through experiments on real system implementation, it is demonstrated that the ESC is superior to the conventional ZigBee network in terms of delay and robustness.
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Hwang et al. (2010) studied this question.
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