Recent advances in wireless communication technologies have enabled the development of Wireless Sensor Networks (WSNs) that consist of low cost, power and small-size sensor nodes. ZigBee, an IEEE 802. 15. 4 based wireless sensor networks have been the promise of facilitating large-scale and real-time data processing in complex environments. Mobility management is a challenging task in the IEEE ...

It is very difficult and expensive to replace sensor node battery in wireless sensor network in many critical conditions such as bridge supervising, resource exploration in hostile locations, and wildlife safety, etc. The natural choice in such situations is to maximize network lifetime. One such approach is to divide the sensing area of wireless sensor network into clusters to achieve high ene...

Today, wireless sensor networks has become a key technology for different types of “smart environments”, and an intense research effort is currently ongoing to enable the application of wireless sensor networks for a wide range of industrial problems. Localization is important when there is an uncertainty of the exact location of some fixed or mobile devices. This paper provides different techn...

Mobile sensor network is the collection of independent and scattered sensors with capacity of mobility. In recent years, Mobility of Sensors has been utilized to improve the target coverage quality and network connectivity in randomly deployed mobile sensor networks. Target coverage and Network connectivity are two main challenging issues of mobile sensor networks. Target coverage covers a set ...

An attacker can capture and compromise sensor nodes, takes the confidential information from sensor nodes and create various attacks with these replicas. An adversary can create mobile replicas of sensor nodes, to transmit fake data, to handle and control the network operations. The Sequential Probability Ratio Test (SPRT) and quarantine defense strategies were proposed to detect and optimise m...

In Wireless Rechargeable Sensor Networks, one or more special mobile entities (called the Mobile Chargers) traverse the network and wirelessly replenish the energy of sensor nodes, using wireless power transfer technology. In this paper, we present some state of the art algorithms that apply to characteristic problems in such networks, namely efficient use of wireless power transfer using i) on...