电力系统异构网络环境中视频流传输研究与实现  

Study and implementation of video transmission in a heterogeneous network environment of power system

作　　者：熊宜栋[1] 

机构地区：[1]武汉大学物理科学与技术学院,湖北武汉430072

出　　处：《武汉大学学报（工学版）》2005年第4期42-45,58,共5页Engineering Journal of Wuhan University

摘　　要：针对电力系统异构网络中视频应用的情况,结合工程实际,设计并实现了一种视频自适应传输架构.该架构可以根据网络的拥塞状态,通过位率调整和丢包控制机制来动态自适应调整传输速率,从而适应电力系统异构网络环境,获得最佳的视频质量和最优的网络利用率.实际应用表明,该系统可以适应异构网络环境下的视频应用,这种自适应架构能支持多种质量的、自适应的视频服务,而且具有很高的可伸缩性和响应特性.An adaptive transmission policy suited for layered video is presented to meet the needs of video applications in a heterogeneous network environment of power system. The video delivery system can adapt video stream to the varying network condition by using bandwidth estimation, adaptive rate shape and packet skipping. Results of application suggest the adaptive mechanism is capable of providing high quality and adaptive video service, with very high scalability and very small complexity.

关 键 词：异构网络 带宽自适应 位率控制 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]