Research on an End-to-end Service Quality Assurance Algorithm of Application Layer Applied in Mobile Client Multimedia Conference Yuefei LI 

Hunan Information College, Changsha Hunan 410151, CHINA 

Abstract: Since the long delay of one-way transmission of wireless network leads the multimedia video to frame loss, frame skip, interruption and other issues, this paper presents an end-to-end service quality assurance algorithm of application layer. For the characteristics of bandwidth limitations, sensitive delay and channel status about multimedia video, this algorithm combines the subsection and restructuring of data packet with heterogeneous transmission of path diversity about wireless network, segment and transmit the data packet in considering the bandwidth, delay, length and weighting and other parameters. Each subsection reaches the client after the transmission of path diversity, and then does validity checking and bandwidth limitation restructuring. Simulation experiment shows that: this algorithm can effectively integrate heterogeneous bandwidth of wireless network, and reduce the one-way delay of video streaming transmission. 

Keywords: Wireless Network; Multimedia; Quality Assurance; Path Diversity Transmission