In the present paper, an efficient method for three dimensional aircraft pattern recognition is introduced. In this method, a set of simple area based features extracted from silhouette of aerial vehicles are used to recognize an aircraft type from its optical or infrared images taken by a CCD camera or a FLIR sensor. These images can be taken from any direction and distance relative to the fly...

Sensor networks are gaining importance as they have vast potential for diverse application areas like monitoring, localizing and tracking of environmental phenomenon. The sensors are constrained by extremely scarce resources, unreliable communication link and faulty nodes. There is a need to address these harsh operating conditions. Real time sensitive applications which require fault free obse...

In this article, the authors have performed a comprehensive survey on Wireless Sensor Network (WSN) Security. The emergence of sensor networks as one of the dominant technology trends in the coming decades has posed numerous unique challenges to researchers. These networks are likely to be composed of hundreds, and potentially thousands of tiny sensor nodes, functioning autonomously, and in man...

Most wireless sensor networks base their design on an ad hoc (multi-hop) network technology that focus on organizing and maintaining a network formed by a group of moving objects with a communication device in an area with no fixed base stations or access points. Although ad hoc network technologies are capable of constructing a sensor network, the design and implementation of sensor networks f...

Due to the failure-prone and vulnerable structure of WSN nodes, understanding typical activity patterns nodes helps identify faulty malicious node activities, differentiate normal behaviors from abnormal behaviors. In this study, for we observe effects network load on energy consumption, packet throughput, latency parameters. We run simulations networks with a variable number sinks. found that ...

The Wireless Sensor Network (WSN) technology is being used in a huge number of monitoring applications. It consists large sensor nodes with limited battery life. These devices are deployed randomly zone to collect the data. But these threatened and attacked by several malicious behaviors caused some nodes, which result security attacks. Several attacks occur different layers wireless network. D...

The wireless sensor network is one of the types of Ad hoc network. Any sensor node can join or leave the network when they want i.e. self-configuring in nature. There is no central controller is present in wireless sensor network. Wireless sensor nodes are responsible for data routing in the network. Wireless sensor network is used to monitor the environmental conditions like, pressure, tempera...