Application Oriented Frame Design for ZigBee Sensor Networks

摘要

Wireless sensor networks (WSNs) consist of hundreds or thousands of small energy-constrained nodes with sensing, computation, and wireless communication capabilities, which are spatially deployed at different locations to sense the physical conditions of the surrounding environment. As a result, WSNs are usually applied to many applications that require unattended operations. However unlike many other networks, sensor nodes on the WSNs are resource constrained. In addition, data exchange is common among these sensor nodes over the WSNs. It is a challenging task to ensure the content or meaning of data information, due to the nature of WSNs, such as the delay uncertainty, latency and dynamic reliability. In order to ensure the reliability, integrity and continuity of data transmission, a novel application oriented frame is specifically designed for the WSNs in this paper. This frame is built on ZigBee technology because of its low-power, which remains redundant sampling information on screen, such as sampling time and information types.