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Wireless Sensor Networks (WSN) are applicable in vast range of applications and depending on the application the sink could be mobile or stationary. Sink mobility has been shown to improve network lifetimes [1], however mobile sink has to periodically update network about its changing position. This control traffic is non-negligible for low power, limited capacity sensors and induces energy consumption...
In order to achieve the best performance of a Wireless Sensor Network (WSN), it is a must to provide a challengeable routing algorithm , which consumes less power and allows more data collection. In this paper we have considered a WSN with mobile sinks and it is considered that the router follows the basic location update algorithm with traffic awareness. We show the performances of a router under...
We illustrate the effective use of ATIM (ad hoc traffic indication message) window in static sensors to obtain potential energy savings for sensors during data dissemination in wireless sensor networks. The network consists of resource-rich mobile sink node and resource-constrained sensor nodes forming a square grid. Sink may be multihop away from the sensor nodes and in order to collect the data,...
This paper proposed a density-awareness and delay-sensitive (DADS) data collecting scheme for wireless sensor networks. This scheme exploits static sink and mobile sink simultaneously to collect data from the whole network. In this way, DADS can solve the premature network partition problem, resulting from the heavy traffic load in the static sink's vicinity. On the other hand, the coexistence of...
A new random access system, like ALOHA, is presented in this paper, where each mobile node will either be in a transmitting mode, in a receiving mode or in an idle mode. Results show that the traffic load is independent of the number of nodes, and can be controlled by controlling the transmitting probability, receiving probability and idle mode probability of each mobile node. Certainly, the presented...
WCDMA radio access networks are dimensioned using traffic models containing traffic characteristics for a number of services offered by the operators and their networks today. Recent trends have seen a new class of traffic emerging, driven by wireless sensor network applications and machine-to-machine communication. This communication between ldquothingsrdquo has traffic characteristics very different...
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