caa a22 4500 605447659 CHVBK 20210128100133.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s11042-013-1813-1 doi (NATIONALLICENCE)springer-10.1007/s11042-013-1813-1 Robust bandwidth aggregation for real-time video delivery in integrated heterogeneous wireless networks [Elektronische Daten] [Jiyan Wu, Yanlei Shang, Xiuquan Qiao, Bo Cheng, Junliang Chen] Bandwidth aggregation is the process of integrating the limited channel resources available in heterogeneous wireless networks. Optimizing this process is an important step towards improving the throughput and reliability for the bandwidth-demanding video applications. In this paper, we investigate the bandwidth aggregation for real-time video delivery in heterogeneous wireless networks from a video server to a multihomed client. Forward Error Correction (FEC) coding is commonly adopted for data protection in implementing loss-resilient wireless video transmission systems. However, the inherent channel unreliability, along with the video traffic variability, can significantly degrade the FEC performance. To address the critical issues, we propose a ROBust BandwIdth Aggregation (ROBBIA) scheme that includes three phases: (1) FEC redundancy adaption, (2) transmission rate assignment, and (3) path interleaving. We present a mathematical formulation of the transmission scheduling to minimize end-to-end video distortion and provide comprehensive analysis for the channel distortion. We conduct the performance evaluation in the Exata and simulation results show that ROBBIA outperforms existing bandwidth aggregation approaches in improving video quality in terms of PSNR (Peak Signal-to-Noise Ratio). Springer Science+Business Media New York, 2013 Heterogeneous wireless networks nationallicence Bandwidth aggregation nationallicence Streaming video nationallicence Forward error correction nationallicence Path interleaving nationallicence Wu Jiyan State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, 100876, Beijing, P. R., China aut Shang Yanlei State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, 100876, Beijing, P. R., China aut Qiao Xiuquan State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, 100876, Beijing, P. R., China aut Cheng Bo State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, 100876, Beijing, P. R., China aut Chen Junliang State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, 100876, Beijing, P. R., China aut Multimedia Tools and Applications Springer US; http://www.springer-ny.com 74/11(2015-06-01), 4117-4138 1380-7501 74:11<4117 2015 74 11042 https://doi.org/10.1007/s11042-013-1813-1 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11042-013-1813-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wu Jiyan State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, 100876, Beijing, P. R., China aut NATIONALLICENCE 700 1- Shang Yanlei State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, 100876, Beijing, P. R., China aut NATIONALLICENCE 700 1- Qiao Xiuquan State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, 100876, Beijing, P. R., China aut NATIONALLICENCE 700 1- Cheng Bo State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, 100876, Beijing, P. R., China aut NATIONALLICENCE 700 1- Chen Junliang State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, 100876, Beijing, P. R., China aut NATIONALLICENCE 773 0- Multimedia Tools and Applications Springer US; http://www.springer-ny.com 74/11(2015-06-01), 4117-4138 1380-7501 74:11<4117 2015 74 11042