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Chih-Heng Ke,Yeong-Sheng Chen,Yun-Shuai Yu 한국통신학회 2017 Journal of communications and networks Vol.19 No.6
Recently, increasing attention has been paid to the studyof applying software defined networks to improve video transmission. Compared with the existing studies which focus on a wirednetwork, this study proposed a multi-path transmission mechanismfor improving the performance of transmitting videos from awired network to a wireless one in a software defined network environment. In the proposed mechanism, a mobile host could applynetwork bonding to integrate several physical or virtual wirelessnetwork modules, each of which was connected to a different accesspoint, into a combined device. Thus, multiple wireless links ofthe mobile host could be established and hence multiple transmissionpaths from the video source in the wired network to the mobilehost were derived. In addition, different amount of video packetswere allocated onto different transmission paths so as to maximizethe performance of the multi-path transmission. According to theresults of our experiments, the proposed mechanism can enhancethe performance of transmission in terms of Peak Signal to NoiseRatio (PSNR).