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In Wireless Sensor Networks (WSN), Quality of Service (QOS) plays a significant role as networks performance is dependent on QoS only. WSN is very popular because of its wide application range. WSN has limited resources such as computational power and energy constraint. Congestion is one important subject which has drawn attention of many researchers. Congestion results into reduced throughput and...
Energy consumption in wireless sensor networks (WSN) was always a basic constraint to respect. But, with the appearance of Wireless Multimedia Sensor Networks (WMSN), another basic constraint comes from added, which is the traffic performance in terms of delay, throughput, and Packet Delivery Rate (PDR). The choice of channel access method can help us to better respond the two constraints in WMSN...
One of the major concerns in wireless sensor networks (WSNs) is improving the network lifetime. This paper addresses the problem of energy saving in an IEEE 802.15.4a large-scale full mesh WSNs based on UWB technology. It presents a network architecture to facilitate resource sharing and to ensure load and energy balancing. With a particular focus on medium access control (MAC) protocols, we propose...
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