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6LoWPAN opens a great opportunity for wireless sensor networks (WSNs) to be operated from the Internet. However, 6LoWPAN requires a gateway in order to make the use of IPv6 feasible inside the WSN. In this paper, a gateway is designed and constructed to interconnect 6LoWPAN wireless sensor networks with IPv6 clients, enabling them to receive sensor nodes readings or send commands to the 6LoWPAN WSN...
Wireless/wired hybrid network offers a promising solution to future broadband access. Exploiting the potential of a hybrid network requires an integrated effort on network design and optimization. We discuss the inter-network traffic and intra-network traffic that commonly exist in an access network, and study to improve transmission efficiency for the two types of traffic. We propose a three-step...
In this paper, we elaborate a set of scenarios and experiments for evaluating the impact of the physical environment on a Wireless Sensor Network (WSN). More specifically, a WSN application is implemented for collecting received signal strength indicator (RSSI) measurements in two different environments. The main contributions are twofold: boxplot diagrams are used for graphical comparison of RSSI...
Today's access networks are increasingly shaped by the services that they provide to the end users. In a hybrid wireless-optical broadband access network (WOBAN), to access any service, the corresponding requests for the services and responses require multi-hop communication over the wireless mesh network (WMN) and Passive Optical Network (PON) subsequently over the Internet to some server in the...
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