Since the network is not cram-full, the sender sends a RTS with a maximum power to make sure that the signal strength is high enough to maintain the SINR level at the receiver in case of interference; the protocol used is thus locally aware. 由于网络节点较为稀疏,发送端发送一个具有最大功率的RTS请求发送帧,以确保信号强度高到足以维持在干扰的情况下接收端的SINR信噪比级别。因此该协议叫做局部感知。
Maximum module characteristics of both useful signal and noise are analyzed. In order to overcome the difficulty in determining decomposition level of wavelet denoising and reconstruction order of singular value decomposition, a self-adaptive determination method for decomposition level and reconstruction order is proposed. 分析有用信号与噪声的模极大值特点,针对小波降噪中分解层数以及奇异值降噪中重构阶次难以确定的问题,研究一种分解层数以及重构阶次的自适应确定法。