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首页> 外文会议>Conference on Multimedia Computing and Networking; 20080130-31; San Jose,CA(US) >Campus-wide asynchronous lecture distribution using wireless laptops
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Campus-wide asynchronous lecture distribution using wireless laptops

机译：使用无线笔记本电脑在校园范围内分发异步讲座

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摘要

This work explored mechanisms to asynchronously distribute video objects to intranet users. The primary application driver was to disseminate lecture videos created by the instructor as well as annotated videos from students. The storage requirements made remote storage mechanisms as well as local infrastructure storage impractical. Hence, we investigated the feasibility of distributing video contents from user devices. Based on the recent trend of devices going wireless, we analyzed the viability of using laptop devices. We envision a variant of RSS feed mechanism that searched for the lectures among currently available replicas. The effectiveness of this distribution mechanism depended on the total number of voluntary replicas and availability patterns of wireless devices. Using extensive analysis of the observed node behavior, we showed that though laptop users were online for shorter durations, their temporal consistency can provide reasonable availability, especially at the times of the day when students were typically active.
机译：这项工作探索了将视频对象异步分发给Intranet用户的机制。主要的应用程序驱动程序是分发由教师创建的演讲视频以及来自学生的带注释的视频。存储需求使远程存储机制以及本地基础结构存储不可行。因此，我们研究了从用户设备分发视频内容的可行性。基于设备无线化的最新趋势，我们分析了使用笔记本电脑设备的可行性。我们设想了一种RSS提要机制的变体，它可以在当前可用的副本中搜索讲座。这种分发机制的有效性取决于无线设备的自愿复制总数和可用性模式。通过对观察到的节点行为的广泛分析，我们发现，尽管笔记本电脑用户上网时间较短，但他们的时间一致性可以提供合理的可用性，尤其是在学生通常很活跃的一天中。

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