An Experimental Study on the Quality-of-Service of Video Encoded Sequences Over an Emulated Rain-Faded Satellite Channel

Celandroni, Nedo; Davoli, Franco; Ferro, Erina; Vignola, Stefano; Zappatore, Sandro; Zinicola, A.

doi:10.1109/jsac.2003.819971

Cited by 9 publications

(4 citation statements)

References 5 publications

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“…This chapter tackles in a unified framework both the (satellite) wireless channel modeling and scalable video coding components in the context of satellite-terrestrial broadcasting/multicasting systems (Kiang et al, 2008). It should be mentioned that the literature is poor in the analysis of the effects produced by corrupted bits in compressed video streams (Celandroni et al, 2004), and an attempt is done here to contribute some results to this open field of research. Some technical aspects both in terms of the video coding system and the satellite channel are provided in Section II.…”

Section: Introductionmentioning

confidence: 99%

Scalable Video Coding in Fading Hybrid Satellite-Terrestrial Networks

Avdiko¹

2011

Effective Video Coding for Multimedia Applications

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Section: Introductionmentioning

confidence: 99%

Scalable Video Coding in Fading Hybrid Satellite-Terrestrial Networks

Avdiko¹

2011

Effective Video Coding for Multimedia Applications

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“…However, although IS achieves a significant gain in performance over direct simulation, the resources required to simulate complex FEC schemes are still huge. An experimental study was presented in [11], where the authors have studied the end-to-end quality of a videoconferencing system using measured fading patterns. These fading patterns cannot be exported directly to other sites since fading statistics are dependent on the meteorological information, link characteristics and actual location of the earth station.…”

Section: Introductionmentioning

confidence: 99%

Accurate modelling of Ka-band videoconferencing systems based on the quality of experience

Farrugia

Debono

2009

IET Commun.

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This work formed part of the project TWISTER, which was financially supported under the European Union 6th Framework Programme (FP6). The authors are solely responsible for the contents of the paper, which does not represent the opinion of the European Commission.Ka-band satellite multimedia communication networks play important roles because of their capability to provide the required bandwidth in remote places of the globe. However, because of design complexity, in practice they suffer from poor design and performance degradation because of being practically forced to guarantee acceptable end-user satisfaction in conditions of extremely low bit error rates, which is emphasised with the vulnerability of compressed video content to transmission errors, often impossible to be applied during the service development phase. A novel discrete event simulation model is presented, which provides performance estimation for such systems based on subjective measurement and a better quality of experience. The authors show that the proposed model reduces implementation cost and is flexible to be used for different network topologies around the globe.peer-reviewe

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“…Hardware emulators were used in the past [8]- [10] to derive the performance of a communication system by implementing the channel and coding schemes on either Field Programmable Gate Arrays (FPGA) or Digital Signal Processor (DSP) boards. These emulators are accurate and can run up to 10 6 times faster than software emulators.…”

Section: Introductionmentioning

confidence: 99%

A Statistical Bit Error Generator for Emulation of Complex Forward Error Correction Schemes

Farrugia

Debono

2007

2007 IEEE International Conference on Communications

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Forward Error Correction (FEC) schemes are generally used in wireless communication systems to maintain an acceptable quality of service. Various models have been proposed in literature to predict the end-to-end quality of wireless video systems. However, most of these models utilize simplistic error generators which do not accurately represent any practical wireless channel. A more accurate way is to evaluate the quality of a video system using Monte Carlo techniques. However these necessitate huge computational times, making these methods unpractical. This paper proposes an alternative method that can be used in modeling of complex communications systems with minimal computational time. The proposed three random variable method was used to model two FEC schemes adopted by the Digital Video Broadcasting (DVB) standard. Simulation results confirm that this method closely matches the performance of the considered communication systems in both bit error rate (BER) and peak signal-to-noise ratio (PSNR).

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An Experimental Study on the Quality-of-Service of Video Encoded Sequences Over an Emulated Rain-Faded Satellite Channel

Cited by 9 publications

References 5 publications

Scalable Video Coding in Fading Hybrid Satellite-Terrestrial Networks

Scalable Video Coding in Fading Hybrid Satellite-Terrestrial Networks

Accurate modelling of Ka-band videoconferencing systems based on the quality of experience

A Statistical Bit Error Generator for Emulation of Complex Forward Error Correction Schemes

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