认知无线电思想在ZigBee无线传感器网络中的应用  

Application of Cognitive Radio in ZigBee Wireless Sensor Network

作　　者：张欣[1] 贾明华[1] 

机构地区：[1]上海大学

出　　处：《单片机与嵌入式系统应用》2009年第7期15-18,共4页Microcontrollers & Embedded Systems

摘　　要：本文将认知无线电的思想在基于ZigBee技术的无线传感器网络中进行应用尝试,提出一种新的多频多跳的Ad-hoc组网方法。该方法充分利用现代高级无线射频芯片对信道占用情况的能量检测功能,解决了传统网络采用时分复用的方法时对信道的利用率不高的问题。针对该方法只在组网开始时对信道进行静态频谱分配的不足,本文给出了进一步改进的建议。改进后的算法具有依据射频情况智能地判决是否进行信道切换的功能。The concept of Cognitive Radio is utilized in WSN based on ZigBee technology. A novel multi-spectrum and multi-hop Ad-hoc method is implemented. This new method brings solution to the problem of low utilization of spectrum in traditional network by making full use of the energy detecting function of modern RF chip. This method staticly allocates its communication channels only at the establishment period . An improved method is proposed, which has the intelligence to decide whether the nodes should switch their channels when RF environment has changed.

关 键 词：认知无线电 ZIGBEE AD-HOC 多频多跳 MC13192 GT60 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置] TN929.5[自动化与计算机技术—控制科学与工程]