Low-complexity adaptive error-control schemes for real-time scalable video transmission over WLANs

Authors:
Chen-Wei Lee;Tien-Wen Sung;Yih-Ching Su;Chu-Sing Yang
Affiliations:
Department of Electronic Engineering, Institute of Computer and Communication Engineering, Jinwen University of Science and Technology, Taipei 231, Taiwan;Department of Electrical Engineering, Institute of Computer and Communication Engineering, National Cheng Kung University, Tainan 701, Taiwan/ Department of Applied Information, Hsing Kuo Universi ...;Department of Information Engineering, I-Shou University, Kaohsiung 840, Taiwan;Department of Electrical Engineering, Institute of Computer and Communication Engineering, National Cheng Kung University, Tainan 701, Taiwan
Venue:
International Journal of Ad Hoc and Ubiquitous Computing
Year:
2012

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Abstract

In this paper, an adaptive video packet transmission mechanism under WLAN is proposed. In terms of the following characteristics: optimal packet length, layering and scalability of MPEG-4 FGS and Unequal Error Protection (UEP), the low calculation complication is applicable to real-time environments. The findings show that the optimal packet length can be obtained through mathematical analysis according to the current wireless network transmission status and the header overhead. Compared to several distinct scalable video transmission schemes, the simulation results reveal that our transmission scheme is capable of reacting to the varying channel condition with less and smoother quality degradation.