Providing interactive video on demand services in distributed architecture

Qazzaz,; Suppi, Remo; Ripoll,; Hernández,; Luque, Emilio

doi:10.1109/eurmic.2003.1231592

Cited by 7 publications

(5 citation statements)

References 13 publications

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“…Various studies have shown how such segments could constitute a traffic bottleneck that could compromise the performance of VoD services [3][4] [5].…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of video server replication in metro/access networks

et al. 2015

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Internet traffic is increasingly becoming a media-streaming traffic. Especially, Video-on-Demand (VoD) services are pushing the demand for broadband connectivity to the Internet, and optical fiber technology is being deployed in the access network to keep up with such increasing demand. To provide a more scalable network architecture for video delivery, network operators are currently considering novel metro/access network architectures which can accommodate replicated video servers directly in their infrastructure. When servers for VoD delivery are placed nearer to the end users, part of the traffic can be offloaded from the core segment of the network, and the end users can experience better Quality of Service (QoS). While the deployment of caching systems for traffic offloading has been studied in the core network, no work has already investigated the potential performance gains by replicating the content in the metro/access segment of the network, even closer to the users. In our work, we will compare the performance of video server replication in different metro/access network architectures, i.e. a metro ring architecture and a tree-based architecture, by considering both active and passive technologies. We will evaluate using both simulative and analytical methodologies how content providers could benefit from the deployment of replicas of video servers in terms of blocking probability of the VoD requests.

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“…Various studies have shown how such segments could constitute a traffic bottleneck that could compromise the performance of VoD services [3][4] [5].…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of video server replication in metro/access networks

et al. 2015

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“…Our research group have designed a distributed Video on Demand (VoD) system architecture for dedicated networks (Qazzaz et al, 2003). This platform works very well in Local Area Network (LAN) environments, but many problems appear that need to be solved whilst trying to provide a service in nondedicated Wide Area Network (WAN) environments.…”

Section: Introductionmentioning

confidence: 99%

A Network Traffic Scheduler for a Vod Server on the Internet

Balladini

Souza²,

Suppi

2006

Proceedings of the International Conference on Signal Processing and Multimedia Applications

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Most of the Video on Demand (VoD) systems were designed to work in dedicated networks. However, there are some approaches that provide VoD service in nondedicated and best effort networks, but they adapt the media's quality according to the available network bandwidth. Our research activities focus on VoD systems with high quality service on nondedicated networks. Currently, we have designed and developed, to integrate in the VoD server, a network manager that provides: total network control, network state information, and adaptation of the transmission rate in a TCP-Friendly way. The present work describes this network manager, named Network Traffic Scheduler (NTS), which incorporates a congestion control algorithm named "Enhanced Rate Adaptation Protocol" (ERAP). ERAP is an optimization of the well-known protocol denominated "Rate Adaptation Protocol" (RAP). Maintaining the basic behavior of RAP, ERAP increases the efficiency of the NTS by reducing the resources usage (of the server and the network). These components has been extensively evaluated by simulations and real tests in which the resource consumption and the performance were measured. This paper presents the advantages of using ERAP instead of RAP in a VoD server, and its viability to be integrated within the NTS in a VoD server on nondedicated networks.

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“…Qazzaz et al [9] describes allocating some resource channels for providing VCR functionalities. It uses large size buffers at client side.…”

Section: Related Workmentioning

confidence: 99%