| 无线局域网视频流组播优化机制 |
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| 引用本文： | 尹春雷,文光俊,冯正勇,刘洪盛.无线局域网视频流组播优化机制[J].计算机工程,2011,37(10):213-215. |
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| 作者姓名： | 尹春雷 文光俊 冯正勇 刘洪盛 |
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| 作者单位： | 电子科技大学通信与信息工程学院,成都,611731 |
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| 基金项目： | 广东省科学技术厅工业攻关基金资助项目 |
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| 摘 要： | 针对网络电视业务的802.11无线局域网数据传输问题，提出一种视频流组播优化机制，基于视频帧区分的方法，对关键帧I帧采用可靠组播机制传输，对非关键的B帧和P帧采用组播机制传输。仿真结果表明，该机制可以在丢帧率和数据延迟之间取得较好的折中，尤其是在无线网络带宽不足的情况下，能够有效提高数据传输后视频的观看质量。
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| 关 键 词： | 无线局域网 组播 GE无线信道 帧区分 视频流 |
Multicast Optimization Mechanism for Video Streaming in Wireless Local Area Network |
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| YIN Chun-lei,WEN Guang-jun,FENG Zheng-yong,LIU Hong-sheng.Multicast Optimization Mechanism for Video Streaming in Wireless Local Area Network[J].Computer Engineering,2011,37(10):213-215. |
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| Authors: | YIN Chun-lei WEN Guang-jun FENG Zheng-yong LIU Hong-sheng |
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| Affiliation: | (School of Communication and Information Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China) |
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| Abstract: | Aiming at data transmission question of Internet Protocol Television（IPTV） in 802.11 Wireless Local Area Network（WLAN）,this paper proposes a video streaming multicast optimization mechanism,in which the key I-frames are transmitted by using reliable multicast communication mechanism and B-frames and P-frames are transmitted by using multicast communication mechanism.Simulation results show that the mechanism based on frame classification can get a flexible compromise between frame loss rate and packet delay,especially when wireless network bandwidth is insufficient,it improves the watching quality of video after data transmission. |
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| Keywords: | Wireless Local Area Network（WLAN） multicast GE wireless channel frame classification video streaming |
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