研究了将无人机作为通信中继平台对战区实施无线通信覆盖时的信息传输调度算法。首先介绍了几种基于信息特征(如优先级、长度、信息在系统总的占用时间等)的调度算法。为了克服传统调度算法的缺点,提出了一种改进的动态优先权调度(DPS,D...研究了将无人机作为通信中继平台对战区实施无线通信覆盖时的信息传输调度算法。首先介绍了几种基于信息特征(如优先级、长度、信息在系统总的占用时间等)的调度算法。为了克服传统调度算法的缺点,提出了一种改进的动态优先权调度(DPS,Dynam ic Priority Scheduling)算法,将信息的优先级与接受系统服务的时间联系起来,动态调整信息的优先权,从而获得较小的系统平均时延,而且对不同信息又不失“公平性”。最后给出了几种调度算法的仿真结果,并对结果进行了分析。分析表明,动态优先权调度算法是一种比较适合无人机通信中继的实用调度算法。展开更多
This paper analyzes the threat of TCG Software Stack(TSS)/TCM Service Module(TSM) deadlock in multi-user environment such as cloud and discusses its causes and mechanism.In addition,this paper puts forward a dynamic p...This paper analyzes the threat of TCG Software Stack(TSS)/TCM Service Module(TSM) deadlock in multi-user environment such as cloud and discusses its causes and mechanism.In addition,this paper puts forward a dynamic priority task scheduling strategy based on value evaluation to handle this threat.The strategy is based on the implementation features of trusted hardware and establishes a multi-level ready queue.In this strategy,an algorithm for real-time value computing is also designed,and it can adjust the production curves of the real time value by setting parameters in different environment,thus enhancing its adaptability,which is followed by scheduling and algorithm description.This paper also implements the algorithm and carries out its performance optimization.Due to the experiment result from Intel NUC,it is shown that TSS based on advanced DPTSV is able to solve the problem of deadlock with no negative influence on performance and security in multi-user environment.展开更多
文摘研究了将无人机作为通信中继平台对战区实施无线通信覆盖时的信息传输调度算法。首先介绍了几种基于信息特征(如优先级、长度、信息在系统总的占用时间等)的调度算法。为了克服传统调度算法的缺点,提出了一种改进的动态优先权调度(DPS,Dynam ic Priority Scheduling)算法,将信息的优先级与接受系统服务的时间联系起来,动态调整信息的优先权,从而获得较小的系统平均时延,而且对不同信息又不失“公平性”。最后给出了几种调度算法的仿真结果,并对结果进行了分析。分析表明,动态优先权调度算法是一种比较适合无人机通信中继的实用调度算法。
基金supported by the State Key Program of National Natural Science Foundation of China(Grant No.91118003)the National Natural Science Foundation of China(Grant No.61173138,61272452,61332019)+1 种基金the National Basic Research Program of China("973"Program)(Grant No.2014CB340600)the National High-Tech Research and Development Program of China("863"Program)(Grant No.2015AA016002)
文摘This paper analyzes the threat of TCG Software Stack(TSS)/TCM Service Module(TSM) deadlock in multi-user environment such as cloud and discusses its causes and mechanism.In addition,this paper puts forward a dynamic priority task scheduling strategy based on value evaluation to handle this threat.The strategy is based on the implementation features of trusted hardware and establishes a multi-level ready queue.In this strategy,an algorithm for real-time value computing is also designed,and it can adjust the production curves of the real time value by setting parameters in different environment,thus enhancing its adaptability,which is followed by scheduling and algorithm description.This paper also implements the algorithm and carries out its performance optimization.Due to the experiment result from Intel NUC,it is shown that TSS based on advanced DPTSV is able to solve the problem of deadlock with no negative influence on performance and security in multi-user environment.
