Combining with agricultural production practice, we propose the agriculture wireless and humidity sensor network design, which is based on ZigBee technology. And we use the chip based on the CC2530 ZigBee protocol as the sensor nodes and coordinator nodes for data collection, transmission and display, aiming to realize the agricultural production automation and precision agriculture.

Cross-layer optimization is an effective mechanism to improve wireless network performance and efficiency. Although cross-layer optimization is not a new technique, it can be applied effectively to different wireless technologies to handle different problems while still conforming to the wireless standards. Utility functions are constructed from measurements of the different OSI layers to provi...

ZigBee is a new low complexity, low cost and low power wireless communication technology. ZigBee technology is used to build a wireless sensor network and we must consider the energy saving and simple of algorithm in designing routing algorithm for wireless sensor networks. As heuristic search algorithm of ant colony optimization has the advantages of good distribution, strong global search cap...

In this work, a portable real-time wireless health monitoring system is developed. The system is used for remote monitoring of patients’ heart rate and oxygen saturation in blood. The system was designed and implemented using ZigBee wireless technologies. All pulse oximetry data are transferred within a group of wireless personal area network (WPAN) to database computer server. The sensor modul...

In the Internet of Things (IoT), different wireless technologies will be used to build various micro-systems, which result mutual interference among these micro-systems. Specifically, ZigBee networks share the 2.4GHz ISM band with WiFi but have much lower transmission power. Therefore, the ZigBee networks inevitably suffer the interference from WiFi Networks. Unlike previous approaches that foc...

A wireless subway collision avoidance system based on zigbee network is proposed in this paper. In the proposal, all the zigbee nodes are divided into two types, fixed nodes and mobile nodes. The fixed nodes are deployed in tree topology networks overlapped with each other along the subway tunnel; the mobile nodes are installed on the trains. The core idea is as soon as a fixed node establishin...

This paper introduces a new technique, a wireless control and monitoring system for an induction motor using the Zigbee protocols”. We know induction motor is mostly used in the industrial applications; hence analysis of induction motor is much essential to find out utilization index of a motor for better performance. Hence monitoring and controlling of parameters of induction motor is necessar...

Wireless home automation networks are gaining importance for smart homes. In this ambit, ZigBee networks play an important role. The ZigBee specification defines a default set of protocol stack parameters and mechanisms that is further refined by the ZigBee Home Automation application profile. In a holistic approach, we analyze how the network performance is affected with the tuning of paramete...