| 基于多路并行的3G视频传输系统设计与实现 |
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| 引用本文： | 万云杰,张磊,吴泽民,柳林. 基于多路并行的3G视频传输系统设计与实现[J]. 电视技术, 2015, 39(17): 117-120 |
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| 作者姓名： | 万云杰 张磊 吴泽民 柳林 |
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| 作者单位： | 解放军理工大学通信工程学院,解放军理工大学通信工程学院,解放军理工大学通信工程学院,中船重工集团第722所 |
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| 摘 要： | 针对3G视频传输时低带宽、高丢包以及不稳定的特点,本文提出一种利用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,本方案能够很好的聚合带宽、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。
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| 关 键 词： | 3G 视频传输 带宽聚合 带宽自适应 丢包重传 |
| 收稿时间： | 2015-02-05 |
| 修稿时间： | 2015-05-18 |
Design and Implementation of Multipath based 3G Video Transmission System |
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| WAN Yun-jie,ZHANG Lei,WU Ze-min and LIU Lin. Design and Implementation of Multipath based 3G Video Transmission System[J]. Ideo Engineering, 2015, 39(17): 117-120 |
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| Authors: | WAN Yun-jie ZHANG Lei WU Ze-min LIU Lin |
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| Affiliation: | College of Communications Engineering,PLA University of Science and TechnologyNanjing,College of Communications Engineering,PLA University of Science and TechnologyNanjing,College of Communications Engineering,PLA University of Science and TechnologyNanjing,No 722 Research Institute,China Shipbuilding Industry Corporation |
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| Abstract: | 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 was proposed. The number of network cards by testing the upload bandwidth of WCDMA and CDMA2000 was determined and 3G uploading characteristics were analyzed in this paper. Besides, a bandwidth adaptive scheme and an algorithm of retransmission was 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. |
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| Keywords: | 3G Video Transmission Bandwidth Adaptive Retransmission |
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