Application-Layer Protocol for Collaborative Multimedia Presentations

Eenjun Hwang, B. Prabhakaran

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Many multimedia presentation applications involve retrieval of objects from more than one collaborating server. Presentations of objects from different collaborating servers might be interdependent. For instance, we can consider distributed video servers where blocks of movies are distributed over a set of servers. Here, blocks of a movie from different video servers have to be retrieved and presented continuously without any gaps in the presentation. Such applications first need an estimate of the available network resources to each of the collaborating server in order to identify a schedule for retrieving the objects composing the presentation. A collaborating server can suggest modifications of the retrieval schedule depending on its load. These modifications can potentially affect the retrieval schedule for other collaborating applications. Hence, a sequence of negotiations have to be carried out with the collaborating servers in order to commit for a retrieval schedule of the objects composing the multimedia presentation. In this paper, we propose an application sub-layer protocol, Resource Lock Commit Protocol (RLCP), for handling the negotiation and commitment of the resources required for a collaborative multimedia presentation application.

Original languageEnglish
Pages (from-to)103-123
Number of pages21
JournalMultimedia Tools and Applications
Issue number2
Publication statusPublished - 2003 Nov
Externally publishedYes

Bibliographical note

Funding Information:
Eenjun Hwang was partly supported by Ajou Research Fund Grant, Ministry of Education of Korea (BK21 Project supervised by Korea Research Foundation) and University Research Program by Ministry of Information and Communication in Korea. B. Prabhakaran has been supported in part by the NSF CAREER grant #IIS-0237954.


  • Application sub-layer
  • Collaborative multimedia presentations
  • Collaborative resource negotiation
  • Multimedia presentations
  • Retrieval scheduling

ASJC Scopus subject areas

  • Software
  • Media Technology
  • Hardware and Architecture
  • Computer Networks and Communications


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