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Proceedings Paper

Campus-wide asynchronous lecture distribution using wireless laptops
Author(s): Xuwen Yu; Surendar Chandra
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Paper Abstract

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.

Paper Details

Date Published: 28 January 2008
PDF: 8 pages
Proc. SPIE 6818, Multimedia Computing and Networking 2008, 68180M (28 January 2008); doi: 10.1117/12.774897
Show Author Affiliations
Xuwen Yu, Univ. of Notre Dame (United States)
Surendar Chandra, Univ. of Notre Dame (United States)

Published in SPIE Proceedings Vol. 6818:
Multimedia Computing and Networking 2008
Reza Rejaie; Roger Zimmermann, Editor(s)

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