论文标题
有效广播移动网络中的及时更新
Efficient Broadcast for Timely Updates in Mobile Networks
论文作者
论文摘要
这项研究考虑了一个无线网络，其中访问点（AP）向众多移动用户广播及时更新。用户拥有的信息的及时性的特点是信息时代。经常以恒定的最大功率广播及时更新可以最大程度地减少所有用户的信息年龄，但会浪费宝贵的通信资源（即时间和能量）。为了解决年龄 - 能量的权衡，至关重要的是，开发一种有效的调度算法来识别广播时间并分配电力。此外，不可预测的用户运动将导致迅速变化的通信渠道；特别是，这些渠道可能是非平稳的。我们的主要贡献是为具有可证明性能保证的移动网络开发在线调度算法和频道不合时宜的调度算法。
This study considers a wireless network where an access point (AP) broadcasts timely updates to numerous mobile users. The timeliness of information owned by a user is characterized by the age of information. Frequently broadcasting the timely updates at constant maximum power can minimize the age of information for all users, but wastes valuable communication resources (ie., time and energy). To address the age-energy trade-off, it is critical to develop an efficient scheduling algorithm that identifies broadcast times and allocates power. Moreover, unpredictable user movement would cause rapidly varying communication channels; in particular, those channels can be non-stationary. Our main contribution is to develop an online scheduling algorithm and a channel-agnostic scheduling algorithm for such a mobile network with a provable performance guarantee.
