Design issues for interactive television systems

Furht, Borko; Kalra, Devendra; Kitson, F.L.; Rodriguez, Arturo A.; Wall, W.E.

doi:10.1109/2.384116

Cited by 64 publications

(24 citation statements)

References 10 publications

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“…6 Below, we summarize functionality of the delivery algorithm by discussing how packets are processed at an agent. Fig.…”

Section: Request Life Cyclementioning

confidence: 99%

“…on the one hand and introduction of effective encoding techniques, such as MPEG-4, that allow streaming of continuous media (e.g., video and audio) with reasonably low bandwidth requirements on the other hand enabled the emergence of an enormous number of multimedia applications such as video-on-demand (VOD) [1], [2], [3], teleconferencing [4], distance learning [5], and interactive TV [6]. Researchers in academia and industry have been struggling for more than a decade to design highperformance centralized continuous media servers (CCMSs) [7], [8], [9], [10] and provide facilities to support specific QOS requirements of continuous media communications on the network [11], [12], [13], [14], all motivated by a desire to realize wide-spread use of these applications.…”

Section: Introductionmentioning

confidence: 99%

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Decentralized resource management for a distributed continuous media server

Shahabi¹,

Banaei-Kashani²

2002

IEEE Trans. Parallel Distrib. Syst.

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AbstractÐDistributed continuous media server (DCMS) architectures are proposed to minimize the communication-storage cost for those continuous media applications that serve a large number of geographically distributed clients. Typically, a DCMS is designed as a pure hierarchy (tree) of centralized continuous media servers. In an earlier work, we proposed a redundant hierarchical topology for DCMS networks, termed RedHi, which can potentially result in higher utilization and better reliability over pure hierarchy. In this paper, we focus on the design of a resource management system for RedHi that can exploit the resources of its DCMS network to achieve these performance objectives. Our proposed resource management system is based on a fully decentralized approach to achieve optimal scalability and robustness. In general, the major drawback of a fully decentralized design is the increase in latency time and communication overhead to locate the requested object. However, as compared to the typically long duration and high resource/ bandwidth requirements of continuous media objects, the extra latency and overhead of a decentralized resource management approach become negligible. Moreover, our resource management system collapses three management tasks, 1) object location, 2) path selection, and 3) resource reservation, into one fully decentralized object delivery mechanism, reducing the latency even further. In sum, decentralization of the resource management satisfies our scalability and robustness objectives, whereas collapsing the management tasks helps alleviate the latency and overhead constraints. To achieve a high resource utilization, the object delivery scheme uses our proposed cost function, as well as various object location and resource reservation policies to select and allocate the best streaming path to serve each request. The object delivery scheme is designed as an application layer resource management middleware for the DCMS architecture to be independent of the underlying telecommunication infrastructure. Our experiments show that our resource management system is successful in realization of the higher resource utilization for the DCMS networks with the RedHi topology.Index TermsÐDistributed continuous media servers, decentralized resource management, distributed multimedia systems, content delivery networks, distributed information systems, video-on-demand.

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“…6 Below, we summarize functionality of the delivery algorithm by discussing how packets are processed at an agent. Fig.…”

Section: Request Life Cyclementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Decentralized resource management for a distributed continuous media server

Shahabi¹,

Banaei-Kashani²

2002

IEEE Trans. Parallel Distrib. Syst.

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“…Scalability is provided by using clusters of storage nodes with disk arrays. Concurrent access to multiple requests and parallel access to multiple disks for the same request in the disk array provide better throughput [12].…”

Section: Introductionmentioning

confidence: 99%

“…It is not practical to have a centralized server facility serve all the users, due to tremendous networking requirements; at the same time, it is not possible to have many replicated facilities to respond locally to individual user populations. To strike a balance between availability and cost-effectiveness, hierarchical configurations of multimedia servers and network switches are employed [12]. Typically, a neighborhood server will handle requests from a particular user population and the server on the next level will handle requests from several user populations if they cannot be handled at their local servers.…”

Section: Introductionmentioning

confidence: 99%

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Load management in a distributed multimedia streaming environment using a fault-tolerant hierarchical system

Aybay¹,

Shah²

2015

Turk J Elec Eng & Comp Sci

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Abstract:In contrast to text-only forms of communications, multimedia uses a combination of audiovisual means alongside textual modes of communication. Streaming multimedia is such multimedia that is constantly delivered by a provider of the multimedia to a client. In streaming multimedia the streamed content is continually presented to and received by the end user. Distributed multimedia systems (DMSs) deliver multimedia content to end-users by means of distributed multimedia databases and distributed information servers. These DMSs are designed to deliver multimedia content over a network. A fault-tolerant redundant hierarchy (Red-HI)-based load management policy for a distributed multimedia streaming system is proposed in this paper. The main objectives of this policy are to provide fault tolerance while increasing the flexibility offered in the network by improving network resource utilization. Another advantage of this policy is that it provides popularity-zone centric dynamic multimedia object placement. The load management and fault tolerance are achieved using Red-HI for the multimedia servers coupled with parent-only query flooding policy.We show through simulations that our scheme outperforms the traditional pure hierarchy employed in most distributed multimedia systems.

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Set‐Top Boxes

Nutt

1999

Wiley Encyclopedia of Electrical and Electronics Engineering

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The sections in this article are Basic Functionality Embedded Systems: The Move Toward Software The Network Interactive Television STB Architecture STB Software The Future of STB s

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Design issues for interactive television systems

Cited by 64 publications

References 10 publications

Decentralized resource management for a distributed continuous media server

Decentralized resource management for a distributed continuous media server

Load management in a distributed multimedia streaming environment using a fault-tolerant hierarchical system

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