基于多路并行的3G视频传输系统设计与实现  

Design and Implementation of Multipath Based 3G Video Transmission System

作　　者：万云杰[1,2] 张磊[1] 吴泽民[1] 柳林 

机构地区：[1]解放军理工大学通信工程学院 [2]海军92665部队 [3]中船重工集团第722所

出　　处：《电视技术》2015年第19期117-120,共4页Video Engineering

摘　　要：针对3G视频传输时低带宽、高丢包以及不稳定的特点,提出一种利用WCDMA和CDMA2000多张网卡并行传输720P高清视频的方案。该方案通过测试WCDMA和CDMA2000两种3G上行带宽,分析了3G上行的特点,确定了使用3G网卡的数量;提出了一种带宽自适应方案和一种换路丢包重传算法。测试结果显示,该方案能够很好地聚合带宽、增强传输鲁棒性,将丢包控制在1%以下,并且能够流畅的传输视频。In order to solve the problem caused by the characteristic of 3G video transmission, that is low-bandwidth, high packet drop rate and instability, a 720P high definition video transmission scheme using multi network cards of WCDMA and CDMA2000 is proposed. The number of network cards by testing the upload bandwidth of WCDMA and CDMA2000 is determined and 3G uploading characteristics are analyzed in this paper. Besides, a bandwidth adaptive scheme and an algorithm of retransmission is proposed. The test results show that the newly proposed scheme can aggregate bandwidth, improve the robustness of transmission, decrease the packet drop rate to under 1% and transmit video smoothly.

关 键 词：3G 视频传输 带宽聚合 带宽自适应 丢包重传 

分 类 号：TN915.43[电子电信—通信与信息系统]