Video streaming on moving vehicles over seamless internetworks of WLANs and cellular networks

IEEE International Conference on Vehicular Electronics and Safety, 2005. Pub Date : 2005-12-27 DOI:10.1109/ICVES.2005.1563675

Ming Li, Ruimin Hu, Rong Zhu, W. Li

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引用次数: 5

Abstract

Interworking between wireless LANs and 3G networks is expected to the best models for vehicle communications. This paper presents a video streaming on vehicle over WLAN and CDMA1X. The main objective is to evaluate the conditions and restrictions under which seamless continuity of video sessions across the two networks is feasible. First, it constructs high speed automobile communication environment by wireless access router which can automatically switched between CDMA1X and the WLAN. In order to fit the bandwidths sharply variety of wireless channel, adaptive video compression algorithms based MPEG4 is utilized to encode the high quality video. Moreover, unique transmission mechanism using media server and media gateway is presented, which can support large scale concurrent users up to 1000. This transmission mechanism uses the buffer on media server to smooth the video transport in wireless channel. The live streaming video of mobile can be viewed over Internet and does not need fix IP address. Therefore the networked vehicle can achieve seamless roaming and secured network connectivity anytime and anywhere.

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移动车辆上的视频流通过无线局域网和蜂窝网络的无缝互联网络

无线局域网和3G网络之间的相互作用有望成为车辆通信的最佳模式。提出了一种基于无线局域网和CDMA1X的车载视频流传输技术。主要目的是评估在两个网络之间实现视频会话无缝连续性的条件和限制。首先，通过在CDMA1X和WLAN之间自动切换的无线接入路由器构建高速汽车通信环境。为了适应无线信道带宽的急剧变化，采用基于MPEG4的自适应视频压缩算法对高质量视频进行编码。提出了采用媒体服务器和媒体网关的独特传输机制，可支持多达1000个大规模并发用户。该传输机制利用媒体服务器上的缓冲区来平滑无线信道中的视频传输。手机视频直播可以通过互联网观看，不需要固定IP地址。因此，联网车辆可以随时随地实现无缝漫游和安全的网络连接。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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IEEE International Conference on Vehicular Electronics and Safety, 2005.

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