Wireless re-programmable real time remote temperature measurement system is able to measure the real time temperature of various remote locations with an accuracy of 0.25°C each. The existing methods use wire transmission. Hence if fault occur means, cable replacement cost is high. The proposed system uses wireless transmission (Zigbee) with the data rate of 256Kbytes/s, to transmit the measure...

In this chapter, the IEEE 802.15.4 MAC layer is modeled using a per-node Markov chain model. Using this model, expressions for various performance metrics including delay , throughput, power consumption, and efficiency, are derived and such expressions are subsequently validated against the corresponding values obtained via simulation. The simplifying assumptions required by the Markov-chain an...

Wireless sensor networks are network systems consisting of hundreds, even thousands of sensor nodes connected to each other through a wireless environment. Sensor nodes have complex functions, such as the detection, collection, calculation and routing of surrounding data with predefined criteria by placing them randomly or according to a certain strategy into diverse areas. In this study, the I...

Aiming at the real time monitoring requirement of poultry farms on the environment, a online monitoring system is proposed for poultry farms on the environment based on ZigBee, its application of ZigBee wireless networks and sensor technology. supply a network structure of monitoring system, monitoring system node controller of data acquisition, data transmission and control node, which is TI's...

Received Aug 2, 2017 Revised Nov 24, 2017 Accepted Dec 18, 2017 ZigBee is an IEEE 802.15.4 standard for information interchanges with business and purchaser gadgets. It is composed around low-control utilization permitting batteries to keep going forever. The ZigBee standard gives system, security, and application bolster administrations working on top of the IEEE 802.15.4 Medium Access Control...

Due to scarce resources, such as transmission power, storage space and communication bandwidth, current broadcast approaches for general ad hoc networks can not be applied to IEEE 802.15.4 based ad hoc networks (e.g., ZigBee networks). This paper proposes a forward node selection algorithm that significantly reduces broadcast redundancy. The algorithm exploits the hierarchical address space in ...

Now-a-days Smart Grid is becoming a key element of energy strategies. Several definitions are coming in different literature but the overall meaning of these different definitions are same. Smart Grid is an intelligent monitoring, control and self healing of an electrical system with the help of information (data) communication in between the end user or generating station and control room. Thi...

In this paper, the data can be transmitted to and received from remote ZigBee communication device. Data Security is primary concern for every communication system. There are many ways to provide security data that is being communicated. However, what if the security is assured irrespective of the hackers are from the noise. This Project describes a design of effective security for data communi...

In a tree-based ZigBee network, ZigBee routers (ZRs) must schedule their beacon transmission times to avoid beacon collisions. The beacon schedule determines packet delivery latency from the end devices to the ZigBee coordinator at the root of the tree. Traditionally, beacon schedules are chosen such that a ZR does not reuse the beacon slots already claimed by its neighbors, or the neighbors of...

This paper is an outcome of an on-going research project sponsored by department of (DST), Ministry of Science and Technology, Government of India, in which a wireless sensor network based on ZigBee-WiFi-Wi-Max hybrid wireless sensor network (WSN) has been developed. This system has been used for implementing telemedicine system as an information gateway between old age homes and nearby hospita...