Mobility Responsive Node Deployment and Tree Construction Framework for ZIGBEE Wireless Networks

ZigBee is a wireless communication technology which provides self-organized, multi-hop and reliable networking facility with long battery lifetime. ZigBee standards have been developed to provide simple, low cost and battery efficient wireless devices. ZigBee operates on top of the IEEE 802.15.4 Medium Access Control (MAC) and physical layer wireless standards to provide network, security and application support services. ZigBee provides wireless networking between low power devices, aimed to reduce the energy consumption and delay. ZigBee technology is deployed in numerous applications such as home based healthcare, medical monitoring and consumer electronics. Data delivery failures occur in ZigBee wireless network due to mobility. Mobility is part of ZigBee vision and it is difficult to provide to/from connections to mobile devices. So, to locate the displaced mobile end devices, the Broadcasting method is used to lessen the effects of mobility. But it consumes large amount of resources in terms of bandwidth and power consumption. Recently Mobility Responsive ZigBee Tree Construction (MRZTC) framework is proposed to avoid such resource consumption and provides efficient data transmission between coordinator and mobile end devices. Data delivery ratio is increased efficiently during downlink communication i.e. between coordinator and mobile end device by using deployment framework, rather than using conventional route reconstruction method.