Modelling and Optimization Algorithm for Dynamic Volume of Access to VOD Business in Ubiquitous Wireless Environment

2019 IEEE 11th International Conference on Communication Software and Networks (ICCSN) Pub Date : 2019-06-01 DOI:10.1109/ICCSN.2019.8905386

Hui Zhang, Yejun Sun, Yaxiang Lou, Haitao Zhao, Hongbo Zhu, Yanfei Sun

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Abstract

In the wireless ubiquitous environment, this paper analyses and models the dynamic volume of access to VOD business. This paper also proposes a wireless business optimization algorithm that enables the CDN edge server to help the core network to divert pressure of user's access best. Firstly, a probability model of the daily volume of access is defined, based on video's score and video's online time. Further, a function relationship between the parameter of the model and the joint conditions above is established to accurately reflect the average value of the daily volume of access. On this basis, the predicted value of the daily volume of access to any video under a certain guarantee probability is obtained. Then, an optimization model for distribution and download of videos is built for the edge server of CDN with limited storage space. A distribution and download scheme of videos based on 0–1 knapsack algorithm is proposed. The simulation results verify the correctness of the model of volume of access and the effectiveness of the optimization algorithm.

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无所不在无线环境下VOD业务动态访问量建模与优化算法

在无线泛在环境下，对视频点播业务的动态访问量进行了分析和建模。本文还提出了一种无线业务优化算法，使CDN边缘服务器能够最好地帮助核心网分流用户的接入压力。首先，基于视频评分和视频在线时长，定义了视频日访问量的概率模型;进一步，建立模型参数与上述联合条件之间的函数关系，以准确反映日均通行量的平均值。在此基础上，得到某保证概率下任意视频的日访问量的预测值。然后，针对存储空间有限的CDN边缘服务器，建立了视频分发和下载的优化模型。提出了一种基于0-1背包算法的视频分发和下载方案。仿真结果验证了访问量模型的正确性和优化算法的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2019 IEEE 11th International Conference on Communication Software and Networks (ICCSN)

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