论文标题
带度假服务器的单个缓冲系统的信息年龄
Age of Information for Single Buffer Systems with Vacation Server
论文作者
论文摘要
在这项研究中，我们使用单个缓冲区和服务器进行多次假期研究M/g/1排队系统中的信息新鲜度。该系统在通信系统中具有广泛的应用。我们旨在通过I.I.D.评估该系统中的信息新鲜度。和non-i.i.d。在三种不同的调度策略下的假期，即传统的缓冲系统（CBS），缓冲液放松系统（BRS）和常规缓冲系统，并具有先得服务（CBS-P）。对于I.I.D.的系统假期，我们得出了新鲜度指标的封闭形式表达式，例如预期的信息年龄（AOI），预期的信息年龄（PAOI）和每个政策下峰值年龄的差异。对于非i.i.d的系统。假期，我们以投票系统为例，并在每个政策下提供其PAOI的封闭式表达。我们探讨了其中一项政策比其他政策在每个信息方面具有优势的条件。我们进一步进行数值研究以验证我们的结果并发展见解。
In this research, we study the information freshness in M/G/1 queueing system with a single buffer and the server taking multiple vacations. This system has wide applications in communication systems. We aim to evaluate the information freshness in this system with both i.i.d. and non-i.i.d. vacations under three different scheduling policies, namely Conventional Buffer System (CBS), Buffer Relaxation System (BRS), and Conventional Buffer System with Preemption in Service (CBS-P). For the systems with i.i.d. vacations, we derive the closed-form expressions of information freshness metrics such as the expected Age of Information (AoI), the expected Peak Age of Information (PAoI), and the variance of peak age under each policy. For systems with non-i.i.d. vacations, we use the polling system as an example and provide the closed-form expression of its PAoI under each policy. We explore the conditions under which one of these policies has advantages over the others for each information freshness metric. We further perform numerical studies to validate our results and develop insights.
