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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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Název: Virtual Reality Transfer Protocol (VRTP): Implementing a Monitor Application for the Real-Time Transport Protocol (RTP) Using the JAVA Media Framework (JMF)
Autoři: Afonso, Francisco C.
Přispěvatelé: NAVAL POSTGRADUATE SCHOOL MONTEREY CA
Zdroj: DTIC AND NTIS
Rok vydání: 1999
Sbírka: Defense Technical Information Center: DTIC Technical Reports database
Témata: 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)
Popis: 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.
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Jazyk: English
Relation: http://www.dtic.mil/docs/citations/ADA375849
Dostupnost: http://www.dtic.mil/docs/citations/ADA375849
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA375849
Rights: APPROVED FOR PUBLIC RELEASE
Přístupové číslo: edsbas.F864C1C7
Databáze: BASE
Popis
Abstrakt: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.