基于SIR的Device-to-Device移动社交网络信息传播模型

Information dissemination model of Device-to-Device communication in mobile social network based on SIR

智能移动设备的迅速普及在加快移动社交网络发展的同时,也给底层通信网络带来了沉重的负担。为了缓解底层通信网络的负担,越来越多的社交网络应用开始采用Device-to-Device技术传播信息。本文以Device-to-Device移动社交网络为研究对象,首先分析该网络中用户参与信息传播的特点,然后在传染病模型的基础上构建适合此网络特点的信息传播模型,并利用该模型分析真实Device-to-Device环境中的信息传播过程。结果表明,Device-to-Device移动社交网络中的信息传播与基于Internet的社交网络中的信息传播有相似之处;但是,由于Device-to-Device移动社交网络存在较大的传播时延,信息在该网络中需要较长的时间才能达到传播高峰。

The rapid spread of smart mobile devices has brought a heavy burden to the underlying communication network while accelerating the development of mobile social networks. In order to alleviate the burden of the underlying communication network,more and more social network applications have begun to use Deviceto-Device technology to disseminate information. In this paper,a real Device-to-Device mobile social network was taken as a research object,and the characteristics of users’ participation in the information dissemination in that network were analyzed. Then,a propagation model was proposed based on SIR model,and it was adopted to analyze the information dissemination characteristics in the real social network. The results showed that information dissemination in Device-to-Device mobile social network was similar to that in the social network based on Internet. However,it took a long time for information to reach the peak of diffusion in Device-to-Device mobile social network due to the large propagation delay of that network.