对延迟敏感媒体流开发分布式准入控制的理论框架

Jun Liu
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引用次数: 1

摘要

大多数实时流媒体应用的性能对传输延迟很敏感。本文介绍了一种分布式接收控制方法,以保证实时媒体流的发送速率。首先开发了一个实用函数来模拟对延迟敏感的媒体流的满意度。然后,将流的最优录取控制问题转化为面向社会最优的网络效用最大化问题。通过构造一个用于确定所有流的准入的集中算法,证明了NUM问题的最优解的存在性。集中式算法提供了通过分布式算法找到最优解的见解。基于对原始问题的对偶分解,提出了一种分布式准入控制方法。这种分布式录取控制方法的构造遵循DiffServ方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A theoretical framework for developing distributed admissions control over delay-sensitive media flows
The performance of most real-time streaming media applications is sensitive to transmission delays. This paper describes a distributed admissions control method to ensure the required sending rates for the real-time media streams. A utility function is first developed to model the satisfaction of delay-sensitive media streams. Then, the optimal admissions control on streams are formulated into a social optimum oriented network utility maximization (NUM) problem. The existence of an optimal solution to the NUM problem has been demonstrated through constructing a centralized algorithm for the determining the admissions for all streams. The centralized algorithm provides insights to find the optimal solution through a distributed algorithm. A distributed admissions control method can be developed based on the dual decomposition of the primal problem. The construction of this distributed admissions control method follows the DiffServ approach.
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