Wireless networking technologies are being implemented in quite a few devices including phones, mobiles, mp3 players etc. The performance of these technologies varies from one to another. The aim of this paper is to analyze the performances of two different low power consumption technologies: Bluetooth and Zigbee. The performance parameters include data coding efficiency and transmission rate. ...

Most ZigBee sensor networks to date make use of nodes with limited processing, communication, and energy capabilities. Energy consumption is of great importance in wireless sensor applications as their nodes are commonly battery-driven. Once ZigBee nodes are deployed outdoors, limited power may make a sensor network useless before its purpose is complete. At present, there are two strategies fo...

The rapidly growing market for wireless technologies (Body LAN, cellular and Wireless LAN) in medical environments has led to a critical need for effective cable replacement solutions. This will enable widespread use of wireless body sensors, utilizing both an effective transmission protocol as well as providing proper infrastructure support. One of the emerging solutions for the body network i...

In this paper a structural analysis in understanding of ZigBee based transmission is investigated and studied. The proposed system is designed and analyzed to achieve a systematic suppressing and load overhead balancing under packet transferring from one mode to another via ZigBee in the absolute presence of Wi-Fi, the system has successfully achieved a greater rate of success in understanding ...

IEEE 802.15.4/Zigbee standard constitutes a promising technology for the deployment of low-power and low rate Wireless Personal Area Networks. Many practical applications of this type of networks may require the association of a nonnegligible number of nodes with strong power constraints. In that case, the most efficient way (especially in terms of battery consumption) of organising 802.15.4/Zi...

ZigBee technology is a kind of wireless technology with short distance, low complexity, low power consumption, low data rate, low cost and wireless network technology. Smart Home system consists of the system server, the family controller (modules), the composition of routers, switches, communication device, controller, wireless transceiver, all kinds of detectors, sensors, actuators and other ...

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...