Performance Evaluation of Advanced High-Speed Data Transfer Methods in Long-Distance Broadband Networks

Noro, Masaaki; Tameshige, F.; K, Baba; Shimojo, Shinsuke

doi:10.1109/waina.2008.170

Cited by 4 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Fig. (12). it can be show the response graphic, and it is similar with bidirectional links with other values.…”

Section: Unidirectional Linkmentioning

confidence: 55%

Hybrid Contribution of JPEG200 Video Files for Professional Production Centers Reliability and Non-Reliability Transmission File Based in Image Quality Needed

Barbero

2012

RPTSP

View full text Add to dashboard Cite

ATM, SDH or satellite have been used in the last century as the contribution network of Broadcasters. However the attractive price of IP networks is changing the infrastructure of these networks in the last decade. Nowadays, IP networks are widely used, but their characteristics do not offer the level of performance required to carry high quality video under certain circumstances. Data transmission is always subject to errors on line. In the case of streaming, correction is attempted at destination, while on transfer of files, retransmissions of information are conducted and a reliable copy of the file is obtained. In the latter case, reception time is penalized because of the low priority this type of traffic on the networks usually has. While in streaming, image quality is adapted to line speed, and line errors result in a decrease of quality at destination, in the file copy the difference between coding speed vs line speed and errors in transmission are reflected in an increase of transmission time. The way news or audiovisual programs are transferred from a remote office to the production centre depends on the time window and the type of line available; in many cases, it must be done in real time (streaming), with the resulting image degradation. The main purpose of this work is the workflow optimization and the image quality maximization, for that reason a transmission model for multimedia files adapted to JPEG2000, is described based on the combination of advantages of file transmission and those of streaming transmission, putting aside the disadvantages that these models have. The method is based on two patents and consists of the safe transfer of the headers and data considered to be vital for reproduction. Aside, the rest of the data is sent by streaming, being able to carry out recuperation operations and error concealment. Using this model, image quality is maximized according to the time window.In this paper, we will first give a briefest overview of the broadcasters' requirements and the solutions with IP networks. We will then focus on a different solution for video file transfer. We will take the example of a broadcast center with mobile units (unidirectional video link) and regional headends (bidirectional link), and we will also present a video file transfer file method that satisfies the broadcaster' requirements.

show abstract

“…In Fig. (12). it can be show the response graphic, and it is similar with bidirectional links with other values.…”

Section: Unidirectional Linkmentioning

confidence: 55%

Hybrid Contribution of JPEG200 Video Files for Professional Production Centers Reliability and Non-Reliability Transmission File Based in Image Quality Needed

Barbero

2012

RPTSP

View full text Add to dashboard Cite

show abstract

“…use Transmission Control Protocol (TCP) to guarantee the transfer using acknowledgements and if necessary retransmissions and a "sliding window" flow control mechanism. Originally TCP only supported a maximum window size of 64 kB, which limits the throughput, for example 100 Mbit/s for a Round-Trip Time of 5 ms [12]. On a congested network, the effects of packet loss mean that the traditional ftp algorithm performs poorly.…”

Section: Bidirectional Linksmentioning

confidence: 99%

Hybrid Contribution of JPEG200 Video Files for Professional Production Centers Reliability and Non-Reliability Transmission File Based in Image Quality Needed

Barbero¹

2012

RPTSP

View full text Add to dashboard Cite

ATM, SDH or satellite have been used in the last century as the contribution network of Broadcasters. However the attractive price of IP networks is changing the infrastructure of these networks in the last decade. Nowadays, IP networks are widely used, but their characteristics do not offer the level of performance required to carry high quality video under certain circumstances. Data transmission is always subject to errors on line. In the case of streaming, correction is attempted at destination, while on transfer of files, retransmissions of information are conducted and a reliable copy of the file is obtained. In the latter case, reception time is penalized because of the low priority this type of traffic on the networks usually has. While in streaming, image quality is adapted to line speed, and line errors result in a decrease of quality at destination, in the file copy the difference between coding speed vs line speed and errors in transmission are reflected in an increase of transmission time. The way news or audiovisual programs are transferred from a remote office to the production centre depends on the time window and the type of line available; in many cases, it must be done in real time (streaming), with the resulting image degradation. The main purpose of this work is the workflow optimization and the image quality maximization, for that reason a transmission model for multimedia files adapted to JPEG2000, is described based on the combination of advantages of file transmission and those of streaming transmission, putting aside the disadvantages that these models have. The method is based on two patents and consists of the safe transfer of the headers and data considered to be vital for reproduction. Aside, the rest of the data is sent by streaming, being able to carry out recuperation operations and error concealment. Using this model, image quality is maximized according to the time window. In this paper, we will first give a briefest overview of the broadcasters' requirements and the solutions with IP networks. We will then focus on a different solution for video file transfer. We will take the example of a broadcast center with mobile units (unidirectional video link) and regional headends (bidirectional link), and we will also present a video file transfer file method that satisfies the broadcaster' requirements.

show abstract

A Protocol-Aware Network Control Method for Large-Scale Data Transfer in Long-Distance Broadband Networks

Jin

Abe

2011

2011 Proceedings of 20th International Conference on Computer Communications and Networks (ICCCN)

View full text Add to dashboard Cite

Performance Evaluation of Advanced High-Speed Data Transfer Methods in Long-Distance Broadband Networks

Cited by 4 publications

References 13 publications

Hybrid Contribution of JPEG200 Video Files for Professional Production Centers Reliability and Non-Reliability Transmission File Based in Image Quality Needed

Hybrid Contribution of JPEG200 Video Files for Professional Production Centers Reliability and Non-Reliability Transmission File Based in Image Quality Needed

Hybrid Contribution of JPEG200 Video Files for Professional Production Centers Reliability and Non-Reliability Transmission File Based in Image Quality Needed

A Protocol-Aware Network Control Method for Large-Scale Data Transfer in Long-Distance Broadband Networks

Contact Info

Product

Resources

About