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arXiv 1205.0337cs.NI
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IP网络视频传输的随机TCO最小化

Stochastic TCO minimization for Video Transmission over IP Networks

Pejman Goudarzi

摘要:

从服务运营商的角度来看,开发通信服务的总拥有成本(TCO)包括两部分:资本支出(CAPEX)和运营支出(OPEX)。这两种类型的成本是相互关联的,并影响任何服务提供商的部署策略。在许多传统方法中,以启发式方式执行对新服务的关键元素的选择,旨在仅减少TCO的OPEX部分,这不一定是最佳的。此外,这种服务的精确成本建模并不总是可能的,并且包含一些不确定性。在目前的工作中,每个视频流元素的成本建模后,通过捕捉模型的不确定性的影响,TCO优化问题的IP网络上的视频流被制定为一个随机优化问题。所提出的优化问题的解决方案可以应付成本建模的不确定性和跟踪的动态TCO,并导致一个随时间变化的最优解。数值分析结果验证了所提出方法的正确性。

英文摘要:

From the viewpoint of service operators the Total Cost of Ownership (TCO) for developing a communication service comprises from two parts; CAPital EXpenditure (CAPEX) and OPerational EXpenditure (OPEX). These two types of costs are interrelated and affect any service provider's deployment strategy. In many traditional methods, selection of critical elements of a new service is performed in a heuristic manner aimed at reducing only the OPEX part of the TCO which is not necessarily optimal. Furthermore, exact cost modeling for such services is not always possible and contains some uncertainties. In the current work, after cost modeling of each video streaming element by capturing the effect of the model uncertainties, the TCO optimization problem for video streaming over IP networks is formulated as a stochastic optimization problem. The solution of the proposed optimization problem can cope with the cost modeling uncertainties and track the dynamism in the TCO and lead to a time-varying optimal solution. Numerical analysis results verify the developed method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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