认知无线电技术在煤矿井下的应用研究

针对现有煤矿井下无线通信系统载频和调制方式等参数固定、无法适应巷道信道模型变化而导致通信可靠性低的问题,提出了在煤矿井下无线通信系统中应用认知无线电技术的方案,即利用认知无线电技术感知通信系统所处巷道的频谱和信道模型,实时、自适应地调整载频、调制方式等传输参数的特点,从而优化煤矿井下无线通信网络的传输性能;综合分析了认知无线电在煤矿井下应用的可行性;最后给出了认知无线电在煤矿井下应用的实现模式。

Application Research of Cognitive Radio Technology in Coal Mine Underground

In order to solve the problem of bad reliability of data transmission of wireless communication system of coal mine underground because the system's parameters such as carrier frequency,modulation mode are settled and so it can't adapted to change of tunnel's channel model,the paper proposed a scheme of applying cognitive radio technology in wireless communication system of coal mine underground.The cognitive radio technology can perceive frequency spectrum and channel model of tunnel through which radio signal of communication system passes,and real-timely and self-adaptively adjust some transmission parameters such as carrier frequency,modulating mode and so on,so as to optimize transmission performance of wireless communication network of coal mine underground.The paper comprehensively analyzed the feasibility of cognitive radio applied in coal mine underground too.At last,it concluded concrete realization mode of cognitive radio applied in coal mine underground.