对LED小灯的输出口初始化，启动或禁用Led显示，设置Led灯的显示状态

认为不同的认知节点信噪比( SNR) 导致了各节点本地检测结果的可靠性不同,故在此基础上提出了一种基于融合中心进行SNR比较 的认知无线电协作频谱检测算法。-That the different cognitive node SNR (SNR) has led to the detection results of the reliability of the local node is different on this basis it was proposed based on f

这是一个介绍可见光通信OFDM的ppt 介绍了LED白光可见光通信的优点及发张潜力，并结合OFDM技术对可见光通信做了深入的说明。-This is an introduction of visible light communication ppt describes the advantages of OFDM white LED visible light communication and sent Zhang potential, combined with OFDM technolog

Technological and security enhancements in third generation (3G) architecture led to the development of the fourth generation (4G) technology. 4G is developed and standardized by the 3GPP which is a fully IP based topology and also referred to as t