Due to significant advancement in wireless communication, wireless sensor networks (WSNs) have attracted great attention in recent years. WSNs are randomly deployed, battery operated autonomous systems consisting of large number of sensors nodes which are responsible for transmitting the real-time sensed data for a specific application in the monitoring area to the base station where it can be ...

Wireless sensor networks (WSNs) are an important emerging area of wireless computing and networking. Throughout our society we use these WSNs in many areas; environment monitoring, smart spaces, medical systems, robotic exploration, disaster recovery systems, and military systems. WSNs present many uses and challenges such as developing a system architecture or model for WSNs [6,8], designing o...

WSNs (Wireless Sensor Networks) have the characteristics of limited communication radius and easy invalidation. Aimed at these characteristics, based on complex networks theory, a topology evolution TEBAS (Topology Evolution of Wireless Sensor Networks Based on adaptive scale-free networks), which introduces fitness and local world and more suitable for WSNs than ERW (Topology Evolution by Rand...

wireless sensor networks are composed of hundreds or thousands of small nodes called sensor that work together and are associated with a specific task or tasks to do. each of these nodes includes sensor, processor, communication components, a small memory and a source of energy. it is expected that wireless sensor networks will be used widely in many applications in near future. scalability and...

Wireless Sensor Networks (WSNs) comprise of groups of tiny sensor nodes that are deployed for collaborative missions such as environmental monitoring, target tracking and surveillance. Due to the miniature size of the nodes, they are typically deployed in large numbers and communicate via multiple hops through a wireless shared communication channel. The successful implementation of such networ...

Wireless sensor networks (WSNs) are characterized by low-power devices equipped with communication capabilities. Due to the lack of a set infrastructure, WSNs exhibit characteristics fundamentally different from traditional networks. The existing literature in conventional wireless networks, therefore, cannot be applied to WSN design. The recently introduced Cooperative diversity techniques exp...

In wireless sensor networks (WSNs)‎, ‎sensor nodes have limited resources with regard to computation‎, ‎storage‎, ‎communication bandwidth‎, ‎and the most important of all‎, ‎energy supply‎. ‎In addition‎, ‎in many applications of sensor networks‎, ‎we need to send images to a sink node‎. ‎Therefore‎, ‎we have to use methods for sending images in which the number and volume of packets are optim...

Wireless sensor networks consist of sensor nodes with sensing and communication capabilities. Efficient aggregation of data collected by sensors is crucial for a successful application of wireless sensor networks (WSNs). Both minimizing the energy cost and reducing the time duration of data aggregation have been extensively studied for WSNs. Algorithms with theoretical performance guarantees ar...

The wide utilization of Wireless Sensor Networks (WSNs) is obstructed by the severely limited energy constraints of the individual sensor nodes. A critical need in wireless sensor networks is to achieve energy efficiency during routing as the sensor nodes have limited energy resources. The efficient energy consumption is the main problem in wireless sensor network. The efficient protocol should...

Wireless sensor networks (WSNs) are creating their manner from analysis to real-world preparation, body & personal-area systems, sensible homes, ecological observance or mobile communications. Wireless ad hoc networks of sensor nodes are visualized to be deployed within the physical atmosphere to observe a large kind of real-world phenomena. Wireless sensor networks (WSN’s) are getting fashiona...