论文部分内容阅读
在3G移动无线网络中,流媒体的服务质量不仅受限于无线链路的不稳定特性,如时延、抖动、丢包率等,客户端的缓存与处理能力也是重要的制约要素,为自适应速率控制算法的研究带来了很大的挑战.本文首先介绍了在3G网络中流媒体自适应传输的机制和研究现状,然后分析了点对点自适应传输的策略问题,并综合考虑通信链路与客户端能力问题,提出了基于客户端缓存的AIMD自适应速率控制算法(ABB-AIMD),最后通过仿真实验对算法进行验证.
In 3G mobile wireless networks, streaming media service quality is not only limited by the instability characteristics of wireless links, such as delay, jitter, packet loss rate, the client’s cache and processing capabilities are also an important constraint factor for adaptive Speed control algorithm has brought great challenge.This paper first introduces the mechanism and research status of streaming media adaptive transmission in 3G network, and then analyzes the policy problem of point-to-point adaptive transmission, and considering the communication link with the customer AIMD adaptive rate control algorithm based on client-side cache (ABB-AIMD) is proposed. Finally, the algorithm is verified through simulation experiments.