Joint Adoption of QoS Schemes for MPEG Streams

Ziviani, Artur; Wolfinger, Bernd E.; Rezende, José Ferreira de; Duarte, Otto Carlos Muniz Bandeira; Fdida, Serge

doi:10.1007/s11042-005-6849-4

Cited by 74 publications

(40 citation statements)

References 25 publications

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“…During period of the decoding process, some data are useful, while some are useless. According to the data usability, two metrics, "Decodable Frame Ratio" (DFR) and "Useless Data Received Ratio" (UDRR) [16], were adopted to examine the efficiency of these retransmission methods. DFR is defined as a percentage of the received effective frames (EF), which can be decoded into an effective GOP, among the total frames in the traffic trace file.…”

Section: Simulation and Evaluationmentioning

confidence: 99%

Retransmission Mechanism for Partially Reliable Transport Protocols Based on Multimedia Applications Transmission

Lai¹,

Chen²

2015

JACN

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Abstract-The partially reliable transport protocol can enhance the quality of services (QoS) of multimedia applications because it reliably transmits some packets and unreliably transmits other packets. Nevertheless, determining which packets require reliable, i.e., these packets will be retransmitted if they were lost, significantly influences the performance of multimedia applications. For the determination, existing approaches adopt a fixed threshold or require information from other layers. This paper proposes a Timeliness-aware Retransmission Mechanism (TRM) that dynamically determines which lost packets should be retransmitted without any information provided from other layers. The receiver using TRM determines a threshold, which is the packet sequence number having timeliness, according to the packet consumed rate and the Round-Trip Time (RTT). Thus the sender retransmits lost packets that can timely arrive, namely, the packets have sequence numbers larger than this threshold. Simulation results shows that PR-DCCP, a partially reliable transport protocol, with TRM can efficiently increase the Decodable Frame Ratios (DFRs), which represents QoS, and decrease the Useless Data Received Ratios (UDRRs), which represents the bandwidth waste. In the simulations, TRM can achieve 8.6~10.6% DFR improvement and 15.1%~17.6% UDRR improvement on average, compared with other retransmission methods.Index Terms-Timeliness-aware retransmission, multimedia applications, partial reliability transmission.

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Section: Simulation and Evaluationmentioning

confidence: 99%

Retransmission Mechanism for Partially Reliable Transport Protocols Based on Multimedia Applications Transmission

Lai¹,

Chen²

2015

JACN

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“…First, we need to obtain measures of the user-perceived performances for representative applications/services (i.e., M 1 , · · · , M N M ) -e.g., web page delay defined as the average time taken to download an entire web page [11] and the fraction of decodable frames per group of pictures (GoP) (also called "decodable frame rate (DFR)") for streaming video [18] -of the reference architecture for the line rates of…”

Section: A Comparative Analysis Frameworkmentioning

confidence: 99%

“…The implemented traffic module can generate frames based on trace files from the ASU video trace library [26]. As a measure of user-perceived quality of video stream, we adopt the DFR which is defined as the ratio of successfully decoded frames at a receiver to the total number of frames sent by a video source [18]: The larger the value of DFR, the better the video quality perceived by the end-user. For details of the implemented traffic models, readers are referred to [23], [2].…”

Section: Virtual Test Bed For Experimentsmentioning

confidence: 99%

A Research Framework for the Clean-Slate Design of Next-Generation Optical Access

Kim

2012

Fiber and Integrated Optics

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Abstract-A comprehensive research framework for a comparative analysis of candidate network architectures and protocols in the clean-slate design of next-generation optical access is proposed. The proposed research framework consists of a comparative analysis framework based on multivariate noninferiority testing and a notion of equivalent circuit rate taking into account user-perceived performances, and a virtual test bed providing a complete experimental platform for the comparative analysis. The capability of the research framework is demonstrated through numerical results from the study of the elasticity of hybrid TDM/WDM-PON based on tunable transceivers.Index Terms-Next-generation optical access, comparative analysis, equivalent circuit rate (ECR), statistical hypothesis testing, non-inferiority testing, quality of experience (QoE).

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“…For the first two parameters we adopt the fraction of decodable frames criterion [21], that estimates the output quality as the ratio between decoded and expected frames:…”

Section: User Experiencementioning

confidence: 99%

P2P vs. IP multicast: Comparing approaches to IPTV streaming based on TV channel popularity

et al. 2011

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Already a popular application in the Internet, IPTV is becoming, among the service provid-ers, a preferred alternative to conventional broadcasting technologies. Since many of the existing deployments have been done within the safe harbor of telco-owned networks, IP multicast has been the desired streaming solution. However, previous studies showed that the popularity of the TV channels follows the Pareto principle, with the bulk of TV channels being watched only by a small fraction of viewers. Recognizing the potential scalability issues, we believe that multicast streaming approach may not be desirable for unpopular TV channels, especially when there are many such channels in the provider's service package. For this reason, the peer-to-peer content distribution paradigm is seen as an alternative, in particular for non-popular content. In order to analyse its viability, in this paper we perform a comparative analysis between IP multicast and a peer-to-peer overlay using unicast connections as streaming approaches, in the context of channels with different degrees of popularity. The analysis targets the bandwidth utilization, video quality and scalability issues, and our findings show that while multicast is always more efficient, peer-to-peer has a comparable performance for unpopular channels with a low number of viewers.

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Joint Adoption of QoS Schemes for MPEG Streams

Cited by 74 publications

References 25 publications

Retransmission Mechanism for Partially Reliable Transport Protocols Based on Multimedia Applications Transmission

Retransmission Mechanism for Partially Reliable Transport Protocols Based on Multimedia Applications Transmission

A Research Framework for the Clean-Slate Design of Next-Generation Optical Access

P2P vs. IP multicast: Comparing approaches to IPTV streaming based on TV channel popularity

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