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Wireless sensor networks (WSNs) is an assemblage of several lightweight and portable devices, usually deployed for monitoring and surveillance purposes. On the account of their small size these sensor nodes suffer from certain limitations such as limited source of energy, constrained memory size and low processing speed. Nowadays major research areas include devising new methods to prolong the network...
With the advancement of technology, a surge of research interest in cognitive radio based networks in smart communities has been mounting. It is anticipated that CR-enabled networks will play a vigorous role in the enrichment of communication efficiency in neighborhood sensor area network. This paper presents a framework for Cognitive Radio based event anomaly detection mechanism. A skeleton for intelligent...
Wireless Sensor Networks are by nature deployed over an undetermined geographical area with uncountable number of nodes, which makes them best studied through simulation. Due to special characteristics of these networks a number of simulation tools have been introduced by institutes and individuals each with different mechanisms and approaches. Hence, selecting a proper simulator based on the network...
Many applications require reliable and trustful data aggregation in Wireless Sensor Networks (WSNs). In this paper, we propose a new scheme to achieve data privacy and integrity protection in data aggregation for WSNs, called Preserving Privacy and Assuring Integrity (PPAI) scheme. For this, before data transmission, the PPAI scheme blurs the original sampled data of a sensor node by randomly breaking...
Energy utilization is a challenging task that is being encountered in low-powered Wireless Sensor Networks (WSNs) when designing an algorithm, protocol or hardware. Congestion is a factor that can affect a network's lifetime (and energy utilization), since it usually leads to packet drops or collisions in the medium followed by possible retransmissions. Forwarding data packets through alternative...
Wireless sensor network (WSN) is an emerging technology that targets multiple applications in the different environments. Its infrastructure is composed of a large number of sensor nodes with a limited physical capacity and low cost. The energy consumption must be as optimized as possible in order to extend its lifetime. The use of data compression techniques can be an advantage in the WSN context,...
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