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Reliability and timeliness are two essential requirements of successful detection of critical events in Wireless Sensor Networks (WSNs). The base station (BS) is particularly interested about reliable and timely collection of data sent by the nodes close to the ongoing event, and at that time, the data sent by other nodes have little importance. In this paper, we propose Congestion and Delay Aware...
In this paper an innovative framework based on the cooperation between MAC and routing protocols is proposed with the purpose of improving the reliability of multicast transmissions in a Mobile Ad hoc NETwork (MANET). The proposed framework adds new features to the On-Demand Multicast Routing Protocol (ODMRP) and to the IEEE 802.11MAC layer. This choice allows to exploit the mesh-based nature of the...
In wireless sensor networks used as a social infrastructure, urgent information, such as a fire alarm, is needed to be transmitted as fast and reliably as possible. In this paper, we propose design methodology for a sensor network which provides preferential control of urgent information over other non-urgent information. In our methodology, several simple mechanisms which function in different spatial...
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