ZigBee and IEEE 802.15.4 are standards-based protocols that provide the web infrastructure required for radio set sensor network application programs. 802.15.4 defines the physical and MAC layers, and ZigBee defines the network and application layers. For sensor network applications, key design requirements turn out or so long battery life, low cost, teeny-weeny footprint, and mesh networking to reliever communication between large number of devices in an practical and multi-application environment. Home AutomationTo provide much flexible perplexity of lighting, heating and cooling, security, and home entertainment systems from anyplace in the home. structure AutomationTo integrate and centralize heed of lighting, heating, cooling and security. unkept cost Secure Reliable and egotism healing tensile and extendable Low power usage Easy and chintzy to deploy Global with use of unaccredited radio bands integrated intelligence for ne twork set-up and message routing HistoryZigBee-style networks began to be conceived around 1998, when some(prenominal) installers realized that both Wi-Fi and Bluetooth were going to be mismatched for many an(prenominal) applications. In particular, many engineers[by whom?] saw a pauperisation for self-organizing ad-hoc digital radio networks.
 The IEEE 802.15.4-2003 standard was completed in whitethorn 2003 and has been superseded by the publication of IEEE 802.15.4-2006.  The ZigBee specifications were ratified on 14 declination 2004. The ZigBee coalition announces pu blic availability of Specification 1.0 on 13! June 2005, know as ZigBee 2004 Specification. During the last quarter of 2007, ZigBee PRO, the enhanced ZigBee specification was finalized The running(a) range of ZigBee is 10-75m compared to 10m for Bluetooth(without a power amplifier). ZigBee sits below Bluetooth in scathe of information rate. The data rate of ZigBee is 250kbps at 2.4GHz, 40kbps at 915MHz and 20kbps at 868MHz whereas that of...If you inadequacy to get a full essay, order it on our website: OrderCustomPaper.com
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