Location information of nodes in Wireless Sensor Networks (WSN) is essential to identify the origins events and act on them. Several localization algorithms are developed for this purpose. In work, we have considered hop based algorithms, which popularly used WSN applications. These use a few reference with location localize other these nodes. But, practical scenarios, some may turn faulty repo...

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 ...

Continuing trends in sensor, semiconductor and communication systems technology (smaller, faster, cheaper) make feasible very dense networks of fixed and mobile wireless devices for use in many different sensing and decision-making systems. In this paper we present the design and development of GNOMES, a lowcost hardware and software testbed. This testbed was designed to explore the properties ...

Wireless Sensor networks has diverted a lot of attention due to its advantages in surveillance, vibration monitoring, temperature, intruder detection, environment monitoring, health care and safety. The main issue that arises in the wireless sensor networks is energy efficiency. The nodes have limited lifetime and the replacement of nodes has high initial and deployment cost. So, we compare the...