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For real-time wireless communication in industrial control, surveillance and inventory tracking, we propose RT-Link, a time-synchronized link protocol. RT-Link provides predictable lifetime for battery-operated embedded nodes, bounded end-to-end delay across multiple hops, and collision-free operation. We investigate the use of hardware-based time-synchronization for infrastructure nodes by using...
Transmission delays caused by wireless multi-hop communications usually hamper the time-sensitive applications on wireless sensor networks (WSNs). In this paper, transmission delay of data packets is quantified as the number of hops from a sensor to base station (BS), and a tolerable delay (TD) of each packet denotes the initial value of aging tag (AT) to present their QoS metric. On the basis of...
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