Columbia's VoD and Multimedia Research Testbed with Heterogeneous Network Support

Chang, S-F; Eleftheriadis, A; Anastassiou, D; Jacobs, S; Kalva, H; Zamora, J

dc.contributor.author	Chang, S-F	en
dc.contributor.author	Eleftheriadis, A	en
dc.contributor.author	Anastassiou, D	en
dc.contributor.author	Jacobs, S	en
dc.contributor.author	Kalva, H	en
dc.contributor.author	Zamora, J	en
dc.date.accessioned	2014-03-01T01:45:54Z
dc.date.available	2014-03-01T01:45:54Z
dc.date.issued	1997	en
dc.identifier.issn	13807501	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/24783
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0031236855&partnerID=40&md5=1573cb81ac851e979013c7e5552e2862	en
dc.subject	Interactive video	en
dc.subject	Internet video	en
dc.subject	MPEG-2 video over ATM	en
dc.subject	Video interoperability	en
dc.subject	Video on demand	en
dc.subject	Video servers	en
dc.subject.other	Asynchronous transfer mode	en
dc.subject.other	Computer hardware	en
dc.subject.other	Computer software	en
dc.subject.other	Decoding	en
dc.subject.other	Image communication systems	en
dc.subject.other	Image compression	en
dc.subject.other	Network protocols	en
dc.subject.other	Interactive video	en
dc.subject.other	Internet video	en
dc.subject.other	Video interoperability	en
dc.subject.other	Video on demand	en
dc.subject.other	Video server	en
dc.subject.other	Voice/data communication systems	en
dc.title	Columbia's VoD and Multimedia Research Testbed with Heterogeneous Network Support	en
heal.type	journalArticle	en
heal.publicationDate	1997	en
heal.abstract	This paper reports our progress in developing an advanced video-on-demand (VoD) testbed, which will be used to accommodate various multimedia research and applications such as Electronic News on Demand, Columbia's Video Course Network, and Digital Libraries. The testbed supports delivery of MPEG-2 audio/video stored as transport streams over various types of networks, e.g., ATM, Ethernet, and wireless. Both software and hardware video encoders/decoders are used in the testbed. A real-time video pump and a distributed application control protocol (MPEG-2's DSM-CC) have been incorporated. Hardware decoders and set-tops are being used to test wide-area video interoperability. Our VoD testbed also provides an advanced platform for implementing proof-of-concept prototypes of related research. Our current research focus covers video transmission with heterogeneous quality-of-service (QoS) provision, variable bitrate (VBR) traffic modeling, VBR server scheduling, video over Internet, and video transmission over IP-ATM hybrid networks. An important aim is to enhance interoperability. Accommodation of practical multimedia applications and interoperability testing with external VoD systems has also been undertaken.	en
heal.journalName	Multimedia Tools and Applications	en
dc.identifier.volume	5	en
dc.identifier.issue	2	en
dc.identifier.spage	171	en
dc.identifier.epage	184	en