Liberal Malaina Fidel

Liberal Malaina, Fidel

Personal information

Liberal Malaina, Fidel

Address: Alda. de Urquijo s/n. C.P.: 48013. Bilbao
Office: 3A18
Email: fidel.liberal@ehu.es
Telephone: +34 94 601 4129
Fax: +34 94 601 4259

 

Academic degrees

University degrees

Career: Engineering in Telecommunications
Intensification: Telematics
Center: University of the Basque Country
Date of achievement: 2001

Doctorate

Program title: Tecnologías de la Información Electrónica y Control
DEA date of achievement: 2003
Thesis titlePropuesta de un modelo y una metodología para la gestión de la calidad en los servicios de telecomunicación
Date of achievement: 2005

Publications

Video Quality Prediction Models Based on Video Content Dynamics for H.264 Video over UMTS Networks

Authors:
Asiya Khan, Lingfen Sun, Emmanuel Ifeachor, Jose Oscar Fajardo, Fidel Liberal, Harilaos Koumaras
Year:
2010
Journal:
International Journal of Digital Multimedia Broadcasting
Volume:
2010. Special Issue on 'IP and Broadcasting Systems Convergence'
Description:

<span lang="en">The aim of this paper is to present video quality prediction models for objective non-intrusive, prediction of H.264 encoded video for all content types combining parameters both in the physical and application layer over Universal Mobile Telecommunication Systems (UMTS) networks. In order to characterize the Quality of Service (QoS) level, a learning model based on Adaptive Neural Fuzzy Inference System (ANFIS) and a second model based on non-linear regression analysis is proposed to predict the video quality in terms of the Mean Opinion Score (MOS). The objective of the paper is two-fold. First, to find the impact of QoS parameters on end-to-end video quality for H.264 encoded video. Second, to develop learning models based on ANFIS and non-linear regression analysis to predict video quality over UMTS networks by considering the impact of radio link loss models. The loss models considered are 2-state Markov models. Both the models are trained with a combination of physical and application layer parameters and validated with unseen dataset. Preliminary results show that good prediction accuracy was obtained from both the models. The work should help in the development of a reference-free video prediction model and QoS control methods for video over UMTS networks.</span>

More information

Conference Papers