Wireless Sensor Network (WSN) refers to a group of specialized transducers with a communications infrastructure for monitor and record the physical conditions of the environment and organizing the collected data at a central location. Security of Wireless Sensor Network is the most important Issue with the fast development of WSN. There are different types of attacks that can affect the network...

Wireless Sensor Network technology is expected to create significant impact on our lives in the coming decade. Various applications of Wireless Sensor Network include environmental monitoring, natural disaster prediction, home appliances covering many domains like agriculture, and health care, clustered databases and so on. A Sensor Network is a network comprised of sensing as well as computing...

Wireless sensor nodes working together in the same environment cooperatively is called Wireless Sensor Network (WSN). WSN frequently monitors surrounding environment for physiological changes and conveys the collected information to Base Station (BS) or Sink through a network of interconnected nodes. Resource utilization is major design constraint with WSN. Dividing nodes into groups to form cl...

Optimal sensor deployment is necessary condition in homogeneous and heterogeneous wireless sensor network. Effective deployment of sensor nodes is a major point of concern as performance and lifetime of any WSN. Proposed sensor deployment in WSN explore every sensor node sends its data to the nearest sink node of the WSN. In addition to that system proposes a hexagonal cell based sensor deploym...

Maintaining the energy of sensors in Wireless Sensor Network (WSN) is important in critical applications. It has been a challenge to design wireless sensor networks to enable applications for oceanographic data collection, pollution monitoring, offshore exploration, disaster prevention, assisted navigation and tactical surveillance applications. WSN consists of sensor nodes which sense the phys...

Building adaptive WSN applications through reprogramming is a fantastic area. Recent research in wireless sensor networks (WSNs) has highlighted the importance of supporting the capability for remote reprogramming of sensor nodes via wireless network. Ease of programming has long been recognized as a major hurdle to the adoption of WSN technology. There are lots of key issue & open problems tha...

Increasing the network lifetime is considered as one of the major issue in wireless sensor network (WSN). The network lifetime can be increased with the introduction of the heterogeneity in sensor nodes. Many heterogeneous routing algorithms in WSN are proposed. In this paper, we have analyzed the performance of distributed energy efficient clustering algorithm (DEEC), developed distributed ene...

Wireless sensor network are the collection of individual nodes which are able to interact with physical environment statically or dynamically by sensing or controlling physical parameter. Wireless sensor network become a leading solution in many important applications such as intrusion detection, target tracking, industrial automation etc. A major problem with WSN is to determining a most effic...

Cognitive wireless networking is often considered in scenarios where a “secondary” network exploits opportunistically the frequency resources which are left unused by a “primary” network. In this book chapter, we consider the application of the cognitive networking paradigm to resource-constrained Wireless Sensor Networking (WSN) scenarios. In particular, we propose a time-domain cognitive sens...