Ismael de Fez

Ismael de Fez

Associate Researcher · Master’s Director at VIU
Ismael de Fez was born in Valencia, Spain in 1983. He received his Telecommunications Engineering degree in 2007 and his M.S. in Telematics in 2010 from the Universitat Politècnica de València (UPV), where his M.Sc. thesis was awarded by the Telefónica chair of UPV. He obtained his PhD in Telecommunications from UPV in 2014 and an MBA from UPV in 2017. He worked as an R&D Engineer at the Institute of Telecommunications and Multimedia Applications (iTEAM, UPV) from 2008 to 2021. Since 2021 he has been Director of the Master’s in Development of Web Applications and Services at the Valencian International University (VIU). His research interests include multimedia transmission, DASH adaptive streaming, QoE modelling, AL-FEC coding for unidirectional wireless environments, and file encoding.
A DASH server-side delay-based representation switching solution to improve the quality of experience for low-latency live video streaming featured image

A DASH server-side delay-based representation switching solution to improve the quality of experience for low-latency live video streaming

SSRS for LL-DASH live streaming uses server-measured client request delays to adapt video quality, achieving good quality-latency trade-offs without player modifications.

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Román Belda
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Performance Evaluation and Testbed for Delivering SRT Live Content using DASH Low Latency Streaming Systems featured image

Performance Evaluation and Testbed for Delivering SRT Live Content using DASH Low Latency Streaming Systems

A testbed for evaluating LL-DASH live streaming from SRT/RTSP sources, achieving end-to-end delays under 2 seconds using FFmpeg and open-source players.

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Román Belda
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Uso de contenedores Docker en el entorno educativo featured image

Uso de contenedores Docker en el entorno educativo

Using Docker containers in university lab courses to provide reproducible, cross-platform environments that simplify deployment of complex networking scenarios for students.

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Ismael de Fez
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New objective QoE models for evaluating ABR algorithms in DASH featured image

New objective QoE models for evaluating ABR algorithms in DASH

Three new objective QoE models for DASH based on PSNR and VMAF, validated subjectively and via the Look Ahead ABR algorithm, outperforming existing models.

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Ismael de Fez
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Look ahead to improve QoE in DASH streaming featured image

Look ahead to improve QoE in DASH streaming

The Look Ahead ABR algorithm for DASH streaming leverages variable bitrate information from constant-quality encodings to minimize stalls while maintaining high QoE, outperforming …

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Román Belda
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Proxy-based near real-time TV content transmission in mobility over 4G with MPEG-DASH transcoding on the cloud featured image

Proxy-based near real-time TV content transmission in mobility over 4G with MPEG-DASH transcoding on the cloud

A proxy and cloud transcoding architecture that delivers near real-time broadcast TV to mobile devices over 4G using MPEG-DASH adaptive streaming.

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Pau Arce
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Look Ahead: A DASH Adaptation Algorithm featured image

Look Ahead: A DASH Adaptation Algorithm

Look Ahead is an ABR algorithm for DASH that uses knowledge of upcoming segment bitrates from constant-quality encodings to reduce stalls and improve QoE.

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Román Belda
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A personalized system for scalable distribution of multimedia content in multicast wireless networks featured image

A personalized system for scalable distribution of multimedia content in multicast wireless networks

This paper presents a novel architecture for scalable multimedia content delivery over wireless networks. The architecture takes into account both the user preferences and context …

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Ismael de Fez
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An Adaptive Mechanism for Optimal Content Download in Wireless Networks featured image

An Adaptive Mechanism for Optimal Content Download in Wireless Networks

This paper presents an adaptive mechanism for improving the content download in wireless environments. The solution is based on the use of the file delivery over unidirectional …

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Ismael de Fez
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Evaluation of Background Push Content Download Services to Mobile Devices Over DVB Networks featured image

Evaluation of Background Push Content Download Services to Mobile Devices Over DVB Networks

This paper proposes a multicast content download service based on the use of residual network capacity to push multimedia content to available local storage in personal multimedia …

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Francisco Fraile
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