A wireless sensor network (WSN) is a network combination of distributed autonomous devices using sensors to recognize physical or environmental trends.Sensor networks are compiled wireless networks of small and low-cost sensors that gathered and originate atmospheric data. The enhanced area of wireless sensor networks combines sensing, communication and computation into a single mechanism. The ...

An integrated hardware and software system for a three dimensional wireless sensor networks is designed and developed for construction monitoring system. Compared to traditional monitoring system, the construction monitoring system based on wireless sensor networks has many advantages. In this paper, we discuss the design and evaluation of the three dimensional wireless sensor networks for cons...

Wireless sensor networks (WSNs) consists of spatially distributed autonomous sensor nodes to monitor physical or environmental conditions because of that they have widespread applications in human communities and existence world. Like other computer and telecommunication networks, wireless sensor networks are susceptible to regarding destructive threats and attacks and simple hardware of these ...

Wireless Sensor Networks (WSNs) offer inherent packet redundancy since each point within the network area is covered by more than one sensor node. This phenomenon, which is known as sensors co-coverage, is used in this paper to detect unauthenticated events. Unauthenticated event broadcasting in a WSN imposes network congestion, worsens the packet loss rate, and increases the network energy con...

Wireless sensor networks have many sensor nodes with a limited energy in a limited area. One of key issues in wireless sensor networks is to prolong the network lifetime. In this paper, we propose a scheme to construct an energy-efficient cluster structure in wireless sensor networks. Our scheme considers both the residual energy of sensor nodes and the number of neighbors around each node when...

Wireless sensor networks are a web of sensor nodes with a set of processor and limited memory unit embedded in it. Reliable routing of packets from the sensor node to its base station is the most important task for the networks. In wireless sensor networks, routing is bit more complex than other wired or wireless networks. The routing protocols applied for the other networks cannot be used here...

Wireless sensor networks are widely considered as one of the most important technologies. The Wireless Sensor Network (WSN) is a wireless network consisting of ten to thousand small nodes with sensing, computing and wireless communication capabilities. They have been applied to numerous fields such as healthcare, monitoring system, military, and so forth. Recent advances in wireless sensor netw...