Evaluation of adaptive LDPC AL-FEC codes for content download services
January 1, 2011·
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Ismael de Fez
Francisco Fraile
Román Belda
Juan Carlos Guerri Cebollada
Abstract
This paper proposes and evaluates the use of adaptive LDPC (Low Density Parity Check) AL-FEC (Application Layer Forward Error Correction) codes for content download services over erasure channels. In the proposed adaptive scheme, clients inform the server of packet losses, enabling the server to generate an optimal number of FEC repair symbols adaptively. Performance is evaluated against non-adaptive AL-FEC codes and an ideal rateless code, demonstrating the effectiveness and efficiency of the adaptive approach in content download scenarios.
Type
Publication
2011 IEEE International Conference on Multimedia and Expo
Authors
Master’s Programme Director at Valencian International University (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.
Authors
Associate Professor at Universitat Politècnica de València
Román Belda received his degree in Computer Science in 2004 and an M.S. in Telematics in 2013 from the Universitat Politècnica de València (UPV), Spain. He obtained his Ph.D. in Telecommunications from UPV in 2021. He is currently an Associate Professor at the Universitat Politècnica de València and a member of the Institute of Telecommunications and Multimedia Applications (iTEAM). His research interests include mobile applications and multimedia transmission protocols.
Authors
Full Professor at Universitat Politècnica de València
Juan Carlos Guerri Cebollada was born in Valencia, Spain in 1969. He received his M.S. and Ph.D. degrees in Telecommunication Engineering from the Universitat Politècnica de València (UPV) in 1993 and 1997, respectively. He is a Full Professor in the Department of Communications Engineering at UPV, where he teaches at the ETSI Telecomunicación. He leads the Multimedia Communications research group (COMM) of the iTEAM (Institute of Telecommunications and Multimedia Applications). His research spans multimedia communications, adaptive video streaming (DASH), quality of experience, wireless and ad hoc networks, and the application of multimedia technologies to industry, medicine, education and communications.