论文标题
信息年龄不协调的更新不协调
Age of Information in Uncoordinated Unslotted Updating
论文作者
论文摘要
传感器来源通过一个未经间隙，不协调的多个访问碰撞频道向监视器提交更新。该渠道不可靠；在监视器上成功接收了无碰撞传输，并具有一定的传输成功概率。对于无限用户模型，在该模型中，传感器将更新作为泊松过程和每个更新都具有独立的指数传输时间，使用随机混合系统（SHS）方法来得出信息的平均信息（AOI）作为所提供的负载的函数，并取得成功概率。然后进行分析以评估所选来源的个体年龄。当来源的数量和更新传输速率以固定比例的比例增长较大时，限制渐近个体年龄可为少数来源提供准确的个体年龄近似。
Sensor sources submit updates to a monitor through an unslotted, uncoordinated, unreliable multiple access collision channel. The channel is unreliable; a collision-free transmission is received successfully at the monitor with some transmission success probability. For an infinite-user model in which the sensors collectively transmit updates as a Poisson process and each update has an independent exponential transmission time, a stochastic hybrid system (SHS) approach is used to derive the average age of information (AoI) as a function of the offered load and the transmission success probability. The analysis is then extended to evaluate the individual age of a selected source. When the number of sources and update transmission rate grow large in fixed proportion, the limiting asymptotic individual age is shown to provide an accurate individual age approximation for a small number of sources.
