The Design And Implementation Of Streaming Media System Based On Wireless Network

Multimedia information including the audio and video has already become the most important transmission content in the network, so with unique technological advantages, streaming media is widely used. In recent years, the rapid development of wireless network and the increasing wireless bandwidth make it possible that streaming media technology is used in the wireless network. Currently, the streaming media based on wireless network is a research focus, and it is also a difficulty.Wireless Streaming Media combines the wireless network technology and streaming media technology. In wireless networks field, 3G networks soon will be launched, according to ITU-T definition, which will be available 2Mkbps maximum data transmission rate, and Wi-Fi networks can achieve maximum 54Mbps (802.11a) transmission rate now, according to the IEEE802.11 series. In the streaming media field, the new H.264 coding standard can provide better quality than any previous coding technology in the same limited bandwidth circumstances and streaming media transmission protocol, such as RTP/RTSP, are also mature. In mobile streaming media field, 3GPP and 3GPP2 have already separately proposed the PSS and the MSS standard for providing streaming media services in the 3G network.Based on the study of wireless streaming media key technologies, this paper proposes a solution for streaming media system based on wireless network. The system is implemented and tested in the Wi-Fi and Internet/Intranet environment.Firstly, this paper states the research background and the development of wireless streaming media. Secondly, the key technologies of streaming media, including transmission protocols and coding standards, are presented. This part of the paper focuses on how to implement these technologies in the system. Third, how to implement streaming media in the wireless network is detailedly studied, such as QoS of wireless streaming media, the streaming media services in the 3GPP standard and H.264 transmission in wireless network. Finally, the design, framework and implement of the streaming media system based on wireless network are introduced. The implement and the result are the emphasis.