Timely and effective response to crises, disasters or infrastructure failures requires shared situational awareness on the part of decision makers and timely information exchange between all formal and informal participants. Enabling policymakers, law enforcement and citizens to interact in a...

A vast amount of literature and research work exists on Wireless Sensor Networks and the issues concerning them. In this paper, we have conducted an exploratory study on the sensor networks to begin with and the various issues and challenges faced in setting up and maintaining sensor networks....

Energy evaluation and planning are important in industry for overall energy savings. Traditionally these functions are realized in wired systems formed by communication cables and various types of sensors. However,the installation and maintenance of these cables and sensors is usually much more...

Energy efficient protocol design is the aim of current researches in the area of sensor networks where limited power resources impose energy conservation considerations. In this paper we concern for Medium Access Control (MAC) protocols the recent technology that is used in the Wireless sensor...

Key Management is a critical security service in wireless sensor networks (WSNs). It is an essential cryptographic primitive upon which other security primitives are built. The most critical security requirements in WSNs include authentication and confidentiality. These security requirements can...

Continuous monitoring of production of yarn is an important process requirement for good productivity in a ring frame machine in textile industry. So, collecting the data on yarn breakages using an appropriate Wireless Sensor Network (WSN) has been taken as a research problem in this work. The...

The issue of energy saving is significant since in a battery-operated wireless node, the battery energy is finite and a node can only transmit a finite number of bits. To extend the life span of a node in wireless sensor networks, an energy-efficient communication technique is mandatory so that...

A wireless sensor node is self-assured by a processor, local memory, sensors, radio, battery and a base station accountable for receiving and processing data collected by the nodes. They carry out cooperative activities due to limited resources such as battery, processor and memory. Nowadays,...