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Virtual Reality Transfer Protocol (VRTP): Implementing a Monitor Application for the Real-Time Transport Protocol (RTP) Using the JAVA Media Framework (JMF)

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Bibliographic Details
Title: Virtual Reality Transfer Protocol (VRTP): Implementing a Monitor Application for the Real-Time Transport Protocol (RTP) Using the JAVA Media Framework (JMF)
Authors: Afonso, Francisco C.
Contributors: NAVAL POSTGRADUATE SCHOOL MONTEREY CA
Source: DTIC AND NTIS
Publication Year: 1999
Collection: Defense Technical Information Center: DTIC Technical Reports database
Subject Terms: Computer Systems, VIRTUAL REALITY, COMMUNICATIONS PROTOCOLS, DATA BASES, AUTOMATION, DISTRIBUTED DATA PROCESSING, REAL TIME, THESES, DATA DISPLAYS, VIDEO SIGNALS, INTERNET, MULTIPLE ACCESS, DISTRIBUTED INTERACTIVE SIMULATION, GRAPHICAL USER INTERFACE, JAVA PROGRAMMING LANGUAGE, MULTICAST COMMUNICATIONS, VIDEO TELECONFERENCING, RTP(REAL TIME TRANSPORT PROTOCOL), API(APPLICATION PROGRAM INTERFACE)
Description: The Real-time Transport Protocol (RTP) supports the transmission of time-based media, such as audio and video, over wide-area networks (WANs), by adding synchronization and quality-of-service (QoS) feedback capabilities to the existing transport protocol. RTP has been widely used in the Multicast Backbone (MBone), a virtual network that has become a shared worldwide medium for Internet multicast communications. This work presents the design patterns, architecture and implementation of an RTP monitor application using the Java Media Framework (JMF), a new Java Application Programming Interface (API) for multimedia support. An RTP monitor is an application that receives packets from all participants in a multicast session in order to estimate the quality of service for distribution monitoring, fault diagnosis and both short and long-term statistics. This new RTP monitor is available as a component of the Virtual Reality Transfer Protocol (vrtp), a protocol being developed to support large-scale virtual environments (LSVEs) over the Internet. Initial test results are satisfactory for audio and video streams, as well as prototype RTP-compliant Distributed Interactive Simulation (DIS) protocol streams. Future work includes automated monitoring across WANs and standardizing structured data formats to comply with Management Information Base (MIB) requirements using Extensible Markup Language (XML) target set definitions.
Document Type: text
File Description: text/html
Language: English
Relation: http://www.dtic.mil/docs/citations/ADA375849
Availability: http://www.dtic.mil/docs/citations/ADA375849
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA375849
Rights: APPROVED FOR PUBLIC RELEASE
Accession Number: edsbas.F864C1C7
Database: BASE
Description
Abstract:The Real-time Transport Protocol (RTP) supports the transmission of time-based media, such as audio and video, over wide-area networks (WANs), by adding synchronization and quality-of-service (QoS) feedback capabilities to the existing transport protocol. RTP has been widely used in the Multicast Backbone (MBone), a virtual network that has become a shared worldwide medium for Internet multicast communications. This work presents the design patterns, architecture and implementation of an RTP monitor application using the Java Media Framework (JMF), a new Java Application Programming Interface (API) for multimedia support. An RTP monitor is an application that receives packets from all participants in a multicast session in order to estimate the quality of service for distribution monitoring, fault diagnosis and both short and long-term statistics. This new RTP monitor is available as a component of the Virtual Reality Transfer Protocol (vrtp), a protocol being developed to support large-scale virtual environments (LSVEs) over the Internet. Initial test results are satisfactory for audio and video streams, as well as prototype RTP-compliant Distributed Interactive Simulation (DIS) protocol streams. Future work includes automated monitoring across WANs and standardizing structured data formats to comply with Management Information Base (MIB) requirements using Extensible Markup Language (XML) target set definitions.