ZigBee Wireless Networks and Transceivers by Shahin Farahani
By Shahin Farahani
ZigBee is a short-range instant networking ordinary sponsored via such leaders as Motorola, Texas tools, Philips, Samsung, Siemens, Freescale, and so on. It helps mesh networking, every one node can transmit and obtain facts, bargains excessive safety and robustness, and is being quickly followed in commercial, control/monitoring, and scientific functions. This publication will clarify the ZigBee protocol, talk about the layout of ZigBee undefined, and describe tips to layout and enforce ZigBee networks. The e-book has a committed site for the newest technical updates, ZigBee networking calculators, and extra fabrics. Dr. Farahani is a ZigBee procedure engineer for Freescale semiconductors Inc. The e-book comes with a committed site that comprises extra assets and calculators: http://www.learnZigBee.com
Table of Contents
Chapter 1: ZigBeeT Basics
Chapter 2: ZigBeeT / IEEE 802.15.4 Networking Examples
Chapter three: ZigBeeT / IEEE 802.15.4 Protocol Layers
Chapter four: Transceiver Requirements
Chapter five: RF Propagation, Antennas, and Regulatory Requirements
Chapter 6: Battery lifestyles Analysis
Chapter 7: place Estimating utilizing ZigBeeT
Chapter eight: ZigBeeT Coexistence
Chapter nine: comparable Technologies
* presents a finished evaluate of ZigBee expertise and networking, from RF/physical layer issues to program layer improvement.
* Discusses ZigBee security measures equivalent to encryption.
* Describes how ZigBee can be utilized in situation detection functions.
* Explores strategies for ZigBee co-existence with different instant applied sciences akin to 802.11 and Bluetooth.
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Extra info for ZigBee Wireless Networks and Transceivers
4 Physical layer, or PHY. This layer is the closest layer to hardware and directly controls and communicates with the radio transceiver. The PHY layer is responsible for activating the radio that transmits or receives packets. The PHY also selects the channel frequency and makes sure the channel is not currently used by any other devices on another network. 1 PHY Packet General Structure Data and commands are communicated between various devices in the form of packets. 11. The PHY packet consists of three components: the Synchronization header (SHR), the PHY header (PHR), and the PHY payload.
A ZigBee gateway provides the interface between a ZigBee network and other networks, such as an Internet Protocol (IP) network. The patient information is then transmitted over the Internet to a personal computer that the physician or nurse uses to monitor the patient. This system could help hospitals improve patient care and relieve hospital overcrowding by enabling them to monitor patients at home. 1 Hotel Guest Room Access ZigBee-based systems can replace the magnetic key card systems used in hotels to access guest rooms.
2 Meter-Reading Systems Utility meters need to be read on a regular basis to generate utility bills. One way to do so is to read the meters manually at homeowners’ premises and enter the values into a database. A ZigBee-based automatic meter-reading (AMR) system can create self-forming wireless mesh networks across residential complexes that link meters with utilities’ corporate offices. AMR provides the opportunity to remotely monitor a residence’s electric, gas, and water usage and eliminate the need for a human visiting each residential unit on a monthly basis.