A status updating system is considered in which data from multiple sources are sampled by an energy harvesting sensor and transmitted to a remote destination through an erasure channel. The goal is to deliver status updates of all sources in a timely manner, such that the cumulative long-term average age-of-information (AoI) is minimized. The AoI for each source is defined as the time elapsed since the generation time of the latest successful status update received at the destination from that source. Transmissions are subject to energy availability, which arrives in units according to a Poisson process, with each energy unit capable of carrying out one transmission from only one source. The sensor is equipped with a unit-sized battery to save the incoming energy. A scheduling policy is designed in order to determine which source is sampled using the available energy. The problem is studied in two main settings: no erasure status feedback, and perfect instantaneous feedback.

中文翻译：

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使用能量收集传感器通过擦除通道及时更新状态：单个和多个来源

考虑一种状态更新系统，其中来自多个来源的数据由能量收集传感器采样并通过擦除通道传输到远程目的地。目标是及时提供所有来源的状态更新，从而使累积的长期平均信息年龄 (AoI) 最小化。每个源的 AoI 定义为自在目的地从该源接收到的最新成功状态更新的生成时间以来经过的时间。传输受能量可用性的影响，根据泊松过程以单元形式到达，每个能量单元只能从一个源进行一次传输。传感器配备一个单元大小的电池以节省输入的能量。调度策略旨在确定使用可用能量对哪个源进行采样。该问题在两个主要设置中进行研究：无擦除状态反馈和完美的瞬时反馈。