论文标题
在通用传输延迟下的不正确信息的年龄分析
Analysis of Age of Incorrect Information under Generic Transmission Delay
论文作者
论文摘要
本文调查了通信系统中的不正确信息（AOII）的年龄，该通信系统的频道随机延迟。我们考虑了一个开槽的时间系统，在该系统中，发射器观察动态源，并决定何时通过通信渠道将更新发送给远程接收器。阈值策略只有在AOII超过阈值时，发射器才会启动传输，该阈值控制发射机的决定。在本文中，我们根据所达到的AOII分析和计算阈值策略的性能。使用Markov链来表征系统的演变，可以通过求解大小是有限的并取决于阈值的线性方程系统来精确获得预期的AOII。我们还在两个特定阈值下给出了预期AOII的封闭式表达式。最后，计算结果表明，比发射器不断传输新更新更好。
This paper investigates the Age of Incorrect Information (AoII) in a communication system whose channel suffers a random delay. We consider a slotted-time system where a transmitter observes a dynamic source and decides when to send updates to a remote receiver through the communication channel. The threshold policy, under which the transmitter initiates transmission only when the AoII exceeds the threshold, governs the transmitter's decision. In this paper, we analyze and calculate the performance of the threshold policy in terms of the achieved AoII. Using the Markov chain to characterize the system evolution, the expected AoII can be obtained precisely by solving a system of linear equations whose size is finite and depends on the threshold. We also give closed-form expressions of the expected AoII under two particular thresholds. Finally, calculation results show that there are better strategies than the transmitter constantly transmitting new updates.
