In this paper, we introduce a new medium access control (MAC) protocol for event-driven wireless sensor networks (WSN). Generally, there are three models of WSN: continuous, on-demand and event-driven. They have different characteristics and each requires a different design model. In the event-driven WSN, the sensors send data only when certain events occur. Normally, the sensors do not have mu...

The objective of this research paper is to design and implement wireless sensor networks (WSN) for various monitoring & control applications in industry. In today’s competitive market the industries are facing growing demands to improve process efficiencies to comply with environmental regulations and meet corporate financial objectives. Therefore, the Wireless Sensor Network (WSN) for industri...

In recent years Wireless Sensor Networks, turn into a famous area of research and development due to the advancement of tiny, cheap, disposable and self-contained battery powered computers, known as sensor nodes or “motes”, which can accept input from an attached sensor, process this input data and transmit the results wirelessly to the transit network. One critical concern when scheming wirele...

Wireless Sensor Networks are highly distributed self organized systems. WSN have been deployed in various fields. Now a day, Topology issues have received more and more attentions in Wireless Sensor Networks (WSN). While WSN applications are normally optimized by the given underlying network topology, another trend is to optimize WSN by means of topology control. In this area, a number of appro...

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...

wireless sensor network includes a large number of nodes which are distributed in a geographical location. the essential fact about wsn is that energy of nodes is limited. therefore, presenting proper solutions as an optimized routing is crucial to equally use energy of all nodes. in this paper we propose a method which performs routing in wsns using greedy approach. it is able to choose optimu...

Wireless sensor networks (WSNs) consist of various homogeneous or heterogeneous sensor nodes deployed over an area. The most challenging issue in wireless sensor network research is its routing protocols as the sensors have limited power so protocols should be like it consumes less energy during active mode. To increase lifetime of a sensor network is to design protocols in such a way that it m...

Power consumption of nodes in a wireless sensor network (WSN) determines the life cycle of the WSN, so it is particularly important to design low-power and high-performance wireless sensor nodes in the network. Based on a simple analysis of the IEEE802.15.4 protocol specifications and comparison among the efficiencies of different physical layers, this paper illustrates the design and implement...

A Mobile Wireless Sensor Network (M-WSN) derives its name by considering either mobile sink or mobile sensor nodes within the Wireless Sensor Network (WSN). As the sensor nodes are energy constrained, energy efficiency is the main aspect to be considered in any applications. By considering mobile sensor nodes in WSN, we can have better energy efficiency, improved coverage, and enhanced target t...

The recent popularity of applications based on wireless sensor networks (WSN) provides a strong motivation for pursuing research in different dimension of WSN. Node placement is an important task in wireless sensor network and is a multi-objective combinatorial problem. A multi-objective ACO (Ant Colony Optimization) algorithm based framework has been proposed in this paper. The framework optim...