基于GOP分帧协作的多媒体多流并行传输机制  

Dynamic multimedia transmission scheme based on GOP frames cooperation

作　　者：靳勇[1] 钱振江[1] 

机构地区：[1]常熟理工学院计算机科学与工程学院,江苏常熟215500

出　　处：《电子技术应用》2017年第6期110-112,117,共4页Application of Electronic Technique

基　　金：江苏省文化厅科研项目(16YB12);江苏省档案局科技项目(2016-14);国家自然科学基金项目(61402057);江苏省科技计划自然科学研究项目(BK20140418)

摘　　要：针对移动多媒体通信的可靠性和并行多流的实时性保障问题,通过组建GOP分帧协作网络,提出了多媒体多流并行动态传输机制。首先,基于多媒体流结构和视频帧优先级与吞吐率、可解码帧率和信道质量的关系,提出了GOP分帧协作传输网络的构建和动态调整方案。其次,基于动态多媒体的状态分析了多媒体流数、信道质量、可解码帧率和误码率的变化规律,结合用户侧需求和通信距离,提出了基于GOP分帧协作的动态多媒体多流并行传输机制。最后,仿真实验证明了所提方案在实时性、并行效率和可靠性等方面具有良好表现,非常适合于并行大规模多媒体实时通信。According to the reliability of mobile multimedia communication and the real-time security of parallel multi stream, a multi stream parallel dynamic transmission mechanism based on GOP is proposed. Firstly, based on the multimedia stream structure and video frame priority, the construction and dynamic adjustment scheme of the GOP sub frame cooperative transmission network is proposed. Secondly, the dynamic state analysis based on the multimedia stream number, channel quality, variation of decodable frame ratio and bit error rate is given, and a dynamic multimedia transmission mechanism based on GOP Frames Cooperation is proposed. Finally, the simulation results show that the proposed scheme has good performance in real-time, parallel efficiency and reliability, and is very suitable for parallel large-scale multimedia real-time communication.

关 键 词：GOP分帧 协作传输 多媒体流 动态调度 多流并行 

分 类 号：TN915.43[电子电信—通信与信息系统]