Wireless ad hoc network is a special kind of wireless network with a dynamic topology consist of self organized nodes. The nodes in the networks are randomly and frequently. Due to the self organizing and decentralized capabilities, ad hoc networks are used for a wide range of civilian and military applications. Wireless ad hoc networks are an open environment and it is susceptible to many secu...

Wireless Sensor Networks are the new generation of networks that typically are formed great numbers of nodes and the communications of these nodes are done as Wireless. The main goal of these networks is collecting data from neighboring environment of network sensors. Since the sensor nodes are battery operated and there is no possibility of charging or replacing the batteries, the lifetime of ...

With large-scale wireless networks, the associated challenges of self-configuration of the network , self-healing in the case of any failure and self-maintenance assume significant importance. Without even one these features, the sensor network formed cannot be used any further. A possible solution to this problem is to use clustering of the nodes in the network. A geographical-radius based clu...

Dynamic environments, such as wireless mesh networks, require flexible and self-adaptive mechanisms to control topology and medium access. Conventional algorithms, developed for quite stable networks, either do not work properly in this new environment or perform poorly. This work intends to study and develop dynamic and self-adaptive strategies to control the topology and the medium access for...

This paper discusses the purposes, requirements and challenges of creating pervasive networks of devices that have sensor technology and embedded computation. The demands placed on these sensor networks suggest that they have to function in a similar way to self-organised biological systems so concepts can be taken from them to design appropriate models for how sensor networks could work. This ...

Since a spatial distribution of communication requests is inhomogeneous and related to a population, in constructing a network, it is crucial for delivering packets on short paths through the links between proximity nodes and for distributing the load of nodes how to locate the nodes as base-stations on a realistic wireless environment. In this paper, from viewpoints of complex network science ...

Wireless sensor networks, due to the characteristics of sensors such as wireless communication channels, the lack of infrastructure and targeted threats, are very vulnerable to the various attacks. Routing attacks on the networks, where a malicious node from sending data to the base station is perceived. In this article, a method that can be used to transfer the data securely to prevent attacks...