论文标题
随后服务的信息年龄
Age of Information with On-Off Service
论文作者
论文摘要
本文考虑了一个通信系统，其中源将时间敏感的信息发送到其目的地。我们假设消息的到达过程和服务过程都是无记忆的，并且源具有没有缓冲区的单个服务器。此外，我们认为该服务被一个独立的随机过程中断，我们使用on-Off过程对其进行建模。对于此设置，我们研究了两个排队学科的信息年龄：1）非抢占的，在服务器被占用时到达的消息被丢弃，以及2）先发制人，其中服务中的消息被替换为在OFF状态中的新到达消息。对于这些学科，我们得出平均峰值年龄和平均年龄的封闭形式表达式。
This paper considers a communication system where a source sends time-sensitive information to its destination. We assume that both arrival and service processes of the messages are memoryless and the source has a single server with no buffer. Besides, we consider that the service is interrupted by an independent random process, which we model using the On-Off process. For this setup, we study the age of information for two queueing disciplines: 1) non-preemptive, where the messages arriving while the server is occupied are discarded, and 2) preemptive, where the in-service messages are replaced with newly arriving messages in the Off states. For these disciplines, we derive closed-form expressions for the mean peak age and mean age.
