Optimal Feedback for Quality Source-Adaptive Schemes in Multicast Multi-layered Video Environments

Gonçalves, Paulo André da S.; Rezende, José Ferreira de; Duarte, Otto Carlos Muniz Bandeira; Pujolle, Guy

doi:10.1007/3-540-47906-6_45

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…propagation delays, and thus different source-to-receiver transmission delays. Applications such as adaptive multicast video distribution [13,14] can benefit from shortest-path trees because smaller round-trip times allow faster adaptation. The ability to construct ShortestPath Trees is therefore advantageous to the multicast routing protocol.…”

Section: The Problems Of Asymmetric Unicast Routingmentioning

confidence: 99%

Analyzing the effects of asymmetric unicast routes on multicast routing protocols

Costa¹,

Fdida²,

Duarte³

2001

J. Braz. Comp. Soc.

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Different multicast routing protocols construct their distribution trees based on the information obtained from the unicast routing infrastructure. Nevertheless, the design of most of these protocols do not take into account that unicast routes may be asymmetric. Indeed, unicast routes in the Internet are very asymmetric. The effects on the quality of the multicast trees vary according to the routing protocol. These are particularly important for protocols that use the recursive unicast approach to allow the progressive deployment of the multicast service. This paper analyses the effects of asymmetric unicast routing on different multicast protocols. We concentrate on two approaches that implement the multicast service trough recursive unicast trees, HBH (Hop-By-Hop multicast routing protocol) and REUNITE (Recursive UNIcast TrEes). Both protocols construct source-specific trees exclusively, which simplify address allocation. As data packets have unicast destination addresses, pure unicast routers are transparently supported. The branching-nodes recursively create packet copies to implement the distribution. Nevertheless, the tree construction algorithms implemented by HBH and REUNITE are different. The design of HBH takes into account the unicast routing asymmetries of the network. HBH is able to always construct a Shortest-Path Tree. Consequently, HBH provides shorter delay routes in asymmetric networks, and provides smaller bandwidth consumption because useless data duplication is avoided. The results obtained from simulation show the effects of unicast routing asymmetries in the different multicast protocols.

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Section: The Problems Of Asymmetric Unicast Routingmentioning

confidence: 99%

Analyzing the effects of asymmetric unicast routes on multicast routing protocols

Costa¹,

Fdida²,

Duarte³

2001

J. Braz. Comp. Soc.

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“…Several studies analyze multimedia data services [1][2][3][4][5][6][7][8] for a variety of communication media and devices. The process of providing real-time multimedia services over mobile and broadband Internet connection has different requirements in terms of the Quality of Service (QoS) [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. This prompts the division of multimedia data into two layers-the base layer and the enhancement layer.…”

Section: Introductionmentioning

confidence: 99%

Transmission Algorithm with QoS Considerations for a Sustainable MPEG Streaming Service

2017

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With the proliferation of heterogeneous networks, there is a need to provide multimedia stream services in a sustainable manner. It is especially critical to maintain the Quality of Service (QoS) standards. Existing multimedia streaming services have been studied to guarantee QoS on the receiving side. QoS has not been ensured due to the fact that the loss of streaming data to be transmitted has not been considered in network conditions. With an algorithm that considers the QoS and can reduce the overhead of the network, it will be possible to reduce the transmission error and wastage of communication network resources. In this paper, we propose a scheme that improves the reliability of multimedia transmissions by using an adaptive algorithm that switches between UDP (User Datagram Protocol) and TCP (Transmission Control Protocol) based on the size of the data. In addition, we present a method that retransmits essential portions of the multimedia data, thus improving transmission efficiency. We simulate an MPEG (Moving Picture Experts Group) stream service and evaluate the performance of the proposed adaptive MPEG stream service.

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Optimal Feedback for Quality Source-Adaptive Schemes in Multicast Multi-layered Video Environments

Cited by 2 publications

References 15 publications

Analyzing the effects of asymmetric unicast routes on multicast routing protocols

Analyzing the effects of asymmetric unicast routes on multicast routing protocols

Transmission Algorithm with QoS Considerations for a Sustainable MPEG Streaming Service

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