Wireless Sensor Networks (WSNs) serve as the basis for today’s Internet of Things applications. A WSN consists of a number of spatially distributed sensor nodes, which cooperatively monitor physical or environmental conditions. In order to ensure the dependability of WSN functionalities, several reliability and security requirements have to be fulfilled. By applying a Satisfiability Modulo Theo...

a Wireless Sensor Network is collection of sensor nodes organized in co- operative way. In node each has sensing, communication and computational capabilities. can be deployed throughout physical space, providing dense sensing quite close to phenomena. this paper there review on WSN challenges realistic situations where face the problems deployment, energy consumption, & routing protocols n...

Wireless sensor networks (WSN) are an emerging multidisciplinary intersection of cutting-edge research fields, and their advantages in terms freedom formation, high signal-to-noise ratio, strength, unattended, which makes WSN have good prospects for application the field internet things (IoT). Considering all benefits that offer, this paper reviews development history wireless (WSN-IoT), analys...

Wireless sensor networks (WSN) are also being actively researched and learned as part of graduate and undergraduate technical disciplines as they are being applied in variety of fields such as landslide detection, smart home monitoring etc. It is essential for the students to learn the WSN concepts through experimentation. But it needs a lot of time, hardware resources and technical expertise t...

The main task of a Wireless Sensor Network (WSN) is to collect data and either send it to a base station immediately or to store it locally until the data is requested by a base station. WSN form a wireless network without specific infrastructure thus efficient routing protocols are necessary to let a data packet find its way from one specific sensor node through the network to the base station...

clustering is an effective approach for managing nodes in wireless sensor network (wsn). a new method of clustering mechanism with using binary gravitational search algorithm (bgsa) in wsn, is proposed in this paper to improve the energy consumption of the sensor nodes.reducing the energy consumption of sensors in wsnsis the objective of this paper that is through selecting thesub optimum senso...

Wireless Sensor Network (WSN) is the current research field in computer science & has growing use in day to day life. As a new technology, it has several research challenges and vast opportunities for the researchers. This paper highlights WSN, its architecture, challenges, applications and classification of various protocols concerning it. It also classifies various security protocols to make ...

at present, the solutions to prevent bedsore include using various techniques for movement and displacement of patients, which is not  possible for some patients or dangerous for some of them while it also poses problems for health care providers. on the other hand, development of information technology in the health care system including application of wireless sensor networks (wsns) has led t...