摘要
随着无线通信技术在实际生活中的普及,同处于2.4GHzISM开放频段上的不同种无线传输技术间的相互干扰问题变得日益突出。在此对多模异构系统中蓝牙信号与ZigBee信号间的干扰现象进行分析,并设计出基于马尔科夫链概念(Markov chain concept)的ZigBee传输网络的简易数学模型。通过数学模型来分析ZigBee设备受蓝牙同频异种信号干扰而导致的数据吞吐量和空闲信道评估(CCA)异常的情况。
With the popularity of wireless communications technology in actual life,the mutual interference among different kinds of wireless transmission technologies used in the same frequency band of 2.4 GHz is becoming more and more prominent.The interference between Bluetooth signal and ZigBee signal in multimode heterogeneous system is analyzed in this paper. A simple mathematical model of ZigBee transmission network based on Markov chain concept is designed. The ZigBee device＇s abnormal conditions in the data throughout and CCA（clear channel assessment）caused by the interference of Bluetooth heterogeneous signals with same frequency are analyzed by means of the mathematical model.
出处
《现代电子技术》
北大核心
2015年第24期104-106,110,共4页
Modern Electronics Technique
基金
江苏省自然科学基金(2009406)
