Evaluation of the MDC and FEC over the quality of service and quality of experience for video distribution in ad hoc networks
May 26, 2012·
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0 min read
Patricia Acelas
Pau Arce
Juan Carlos Guerri
Wilder Castellanos
Abstract
Mobile ad hoc networks (MANETs) offer an excellent scenario for deploying communication applications because of the connectivity and versatility of this kind of networks. In contrast, the topology is usually extremely dynamic causing high rate of packet loss, so that ensuring a specific Quality of Service (QoS) for real-time video services becomes a hard challenge. In this paper, we evaluate the effect of using Multiple Description Coding (MDC) and Forward Error Correction (FEC) techniques for improving video quality in a multimedia content distribution system. A hybrid architecture using fixed and wireless ad hoc networks is proposed, which enables the use of multipoint-to-point transmission. MDC and FEC mechanisms can be combined with multipath transmission to increase the network efficiency and recover lost packets, improving the overall Quality of Experience (QoE) of the receiver. Simulations have been analyzed paying attention to objective parameters (Peak Signal to Noise Ratio, Packet Delivery Ratio, Decodable Frame Rate and interruptions) and subjective parameters. Results show that MDC increases the probability of packet delivery and FEC is able to recover lost frames and reduce video interruptions in moderate mobility scenarios, resulting in the improvement of video quality and the final user experience.
Type
Publication
Multimedia Tools and Applications, 68(3), 969–989. Springer Science and Business Media LLC
Authors
Associate Professor
Pau Arce Vila received his Telecommunications Engineering degree in 2005, his M.S. in Communication Technologies, Systems and Networks in 2008, and his PhD in Telecommunications in 2014, all from the Universitat Politècnica de València (UPV), Spain. He is a Profesor Permanente Laboral in the Communications Department at UPV and a researcher at the Institute of Telecommunications and Multimedia Applications (iTEAM) since 2005. His research interests include multimedia QoS, adaptive video streaming (DASH), quality of experience, routing in wireless ad hoc networks, and performance evaluation of multimedia systems.
Authors
Full Professor · Head of the group
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.
Authors
PhD 2015
Wilder Castellanos received his Electronic Engineering degree from the Universidad Industrial de Santander (Colombia) in 2002 and the M.Sc. in Telematics Engineering from UPV in 2009. He obtained his PhD in Telecommunications from UPV in 2015 with a thesis on QoS routing and mechanisms for improving video streaming over mobile ad hoc networks.