论文标题
无线驱动通信系统的极端信息年龄
Extreme Age of Information for Wireless-Powered Communication Systems
论文作者
论文摘要
对于无线通信系统，分析了信息的极端或最大信息年龄（AOI）。特别是，在独立的瑞利效率通道下操作时，考虑了配备多个天线的无线电单源节点和配备有多个天线的接收器（连接到电网）。通过极值理论及其相应的统计特征，我们证明了极端AOI收敛到牙龈分布，而其相应的参数则以直接的封闭形式表达式获得。利用这一结果，根据一些相关的绩效指标对极端AOI实现的风险进行了分析，而某些有用的工程见解则表现出来。
The extreme or maximum age of information (AoI) is analytically studied for wireless communication systems. In particular, a wireless powered single-antenna source node and a receiver (connected to the power grid) equipped with multiple antennas are considered when operated under independent Rayleigh-faded channels. Via the extreme value theory and its corresponding statistical features, we demonstrate that the extreme AoI converges to the Gumbel distribution whereas its corresponding parameters are obtained in straightforward closed-form expressions. Capitalizing on this result, the risk of the extreme AoI realization is analytically evaluated according to some relevant performance metrics, while some useful engineering insights are manifested.
