基于分布云的微格录播系统的可靠调度设计  

Design for reliable scheduling of micro recording and broadcasting system based on distributed cloud

作　　者：张春辉[1] ZHANG Chunhui(Electrified Teaching Center,Taiyuan Normal University,Taiyuan 030031,China)

机构地区：[1]太原师范学院电教中心,山西太原030031

出　　处：《现代电子技术》2017年第19期169-172,共4页Modern Electronics Technique

摘　　要：传统的微格录播系统受网络环境干扰,无法进行有效的可靠调度,为了解决这一问题,设计基于分布云的微格录播系统可靠调度模型,提出可靠调度方法。分布云对模型中教学任务和调度量的可靠性度量值进行了定义。教学任务的传输介质是独立载波和聚集载波,通过分析可靠性度量值,在MAC层上设计独立载波和聚集载波的可靠调度方法,使用M/G/1的排队理论对两种方法进行融合,使系统不同通道中的教学任务实现动态平衡调度。实验结果表明,所提设计方法的有效性强,对信道实时吞吐量的增益效果明显。The traditional micro recording and broadcasting system interfered on network environment can′t perform the effective reliable operation.In order to solve this problem,a reliable scheduling model of micro recording and broadcasting systembased on distributed cloud is designed,and the reliable scheduling method is proposed.The distributed cloud is used to definethe reliability measure values of teaching task and scheduling quantity in the model.Taking the independent carrier and aggregation carrier as the transmission mediums of teaching task and analyzing the reliability measure values,the reliable dispatchingmethods of independent carrier and aggregation carrier were designed on MAC layer.The M/G/1queuing theory is adopted tofuse the two methods to make the teaching task in different channels realize the dynamic balance scheduling.The experimentalresults show that the proposed method has strong effectiveness,and obvious gain effect of the real-time channel throughput.

关 键 词：分布云 微格录播系统 可靠调度 多载波 

分 类 号：TN921-34[电子电信—通信与信息系统] TP393.09[电子电信—信息与通信工程]