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This paper first introduces a heterogeneous IoT access network architecture for the Internet of Things (IoT). In the network, an IoT terminal can adaptively access to a wireless sensor network (WSN) gateway or a cellular base station (BS) according to the channel conditions. The heterogeneous IoT access network schedules the IoT terminal to access to either the WSN or the cellular network (CN) via...
This paper introduces the design and implementation of a wireless sensor network (WSN) gateway with multi-mode access to Internet supporting data collection and video surveillance. The wireless sensor network collects data, while the video surveillance devices are applied for the monitoring of WSN system. Both the wired and the wireless way of Internet access are discussed. Because of the bandwidth...
Using wireless sensor networks is an effective way of gathering data and also opens up new sensing opportunities. Wireless sensor networks can be more useful if the data can be effectively retrieved from the sensor network. This paper describes the development of a gateway node for a wireless sensor network, implemented in TinyOS, using the AT91RM9200 ARM evaluation kit from Atmel. This node enables...
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