Wireless sensor networks (WSNs) are composed of many homogeneous or heterogeneous sensor nodes with limited resources. A sensor node is comprised of three components: a sensor, a processor and a wireless communication device. A sensor of nodes detect a change in surroundings, a processor processes sensing data collected from neighbour nodes or own environmental information, and a wireless commu...

Large populations of wireless connected nodes, capable of computation, communication and sensing constitute wireless sensor networks (WSNs). Since increasing number of applications have been widely deployed using WSNs, selection of the best type of secure data transmission for WSNs becomes one of the most important issues among other challenges. Besides, there is not any secure sensor network p...

Rapid advances in sensor technology and wireless communications have led to the development of wireless sensor networks (WSNs). However, the sensor nodes in WSNs have a finite lifetime since it is often impractical, or even impossible, to recharge their batteries once they have been deployed. When the energy of a sensor node has been fully consumed, it can play no further role within the WSNs. ...

Wireless sensor networks (WSNs) are becoming very popular due to their large use in many of applications such as monitoring and collecting data from undisturbed dangerous environments. But the nodes in a sensor network are severely affected by energy. Reducing energy consumption of nodes to increase the network lifetime is considered as a most important challenge, so this paper will simulate th...

Most applications of wireless sensor networks (WSNs) [2, 4, 10, 19, 22, 24, 25] require long term (several months or even years of) unattended operation from their networks. But, significant challenges still remain in achieving longterm unattended operation from large-scale wireless sensor networks. Critical among those are the problems of power management. An important distinction between wire...

Wireless sensor networks (WSNs) consists of spatially distributed autonomous sensor nodes to monitor physical or environmental conditions because of that they have widespread applications in human communities and existence world. Like other computer and telecommunication networks, wireless sensor networks are susceptible to regarding destructive threats and attacks and simple hardware of these ...

Wireless Sensor Networks (WSNs) are rapidly emerging as an important new area in wireless and mobile computing research. Applications of WSNs are numerous and growing, and range from indoor deployment scenarios in the home and office to outdoor deployment scenarios in adversary's territory in a tactical battleground (Akyildiz et al., 2002). For military environment, dispersal of WSNs into an ad...

Wireless Sensor Networks (WSNs) are vulnerable to Byzantine attacks in which malicious sensors send falsified information to the Fusion Center (FC) with the goal of degrading inference performance. Here the focus is on target localization in WSNs using quantized data where, due to power and bandwidth constraints, each sensor sends quantized data to a Fusion Center (FC). The FC combines these lo...

Cognitive Radio Wireless Sensor Networks are emerging technology which provides cognitive capabilities to Wireless Sensor Networks. WSN operates in unlicensed band. Same spectrum band is shared by other wireless devices like Wi-Fi and Bluetooth. Due to this, the unlicensed spectrum is overcrowded which degrades the performance of WSNs. To overcome this issue, Cognitive Radio is integrated with ...

Wireless Sensor Networks (WSNs) have been employed in many real-world applications that greatly improve our life. by applying a genetic operator. However, the Intrusion detection systems in wireless sensor networks: A review. Intrusion Detection System (IDS) provides a solution to this problem by analysing the network in order to detect abnormal behaviour of the sensor node(s). A well designed ...