移动节点随机事件捕获性能的统计分析

Statistical Analysis of Random Events Capture Performance for a Mobile Node

在事件随机变量参数未知的指数分布下,讨论分布参数的Bayes估计。首先,通过不同调度方案分析移动节点随机事件捕获的性能;其次,采用随机事件参数未知下的在线变速调度方案和随机事件参数已知下的离线匀速调度方案,研究移动节点事件捕获性能对工作状态速度的影响;最后,采用MATLAB软件进行仿真,结果表明:在线变速调度方案下的捕获性能优于离线变速或匀速调度方案、在线匀速调度方案,且在线变速调度方案是离线匀速调度方案的一种实时修正。

Under the exponential distribution of the event random variable with unknown parameter,this paper mainly discusses the Bayes estimation of the distribution parameters.Firstly,this paper analyses the performance of random event capture of a mobile node based on different scheduling schemes.Secondly,it studies the effect of the mobile node event capture performance on the work state speed under the conditions of both the online variable speed scheduling scheme with unknown random event parameters and the off-line constant speed scheduling scheme with known random event parameters.Finally,the simulation results by using MATLAB software show that the acquisition performance of online variable speed scheduling scheme is better than off-line variable speed or constant speed scheduling scheme and online constant speed scheduling scheme;furthermore,the online variable speed scheduling scheme is a real-time modification of off-line constant speed scheduling scheme.