Improving Video Transmission over Heterogeneous Networks
December 1, 2018·
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0 min read
Wilder Castellanos
Juan Carlos Guerri
Mónica Chacón
Abstract
Mobile Ad-doc Networks (MANETs) have been conceived to operate as stand-alone networks, which means that data traffic will be restricted within the MANETs. However, in most practical applications of MANETs, mobile devices require access to wired hosts (e.g. video servers) located beyond the limits of the mobile ad hoc network. Therefore, routing protocols originally designed for an ad hoc environment must be extended to support the interoperability with other networks. This work presents a new algorithm that is integrated into the AQA-AODV routing protocol in order to improve the interoperability between MANETs and wired networks (heterogeneous networks). The proposed algorithm has been designed to improve the network conditions for video transmission over heterogeneous networks. Therefore, a performance evaluation of the video streaming over a simulated network was carried out using the proposed approach. The simulations experiments performed in this study involve the transmission of H.264/AVC streams with different spatial and temporal characteristics. The results reveal that the rate-adaptive strategy helps avoid or reduce the congestion obtaining an improvement of the received video quality.
Type
Publication
IEEE Latin America Transactions, 16(12), 2987–2995. Institute of Electrical and Electronics Engineers (IEEE)
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.
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.