A social‐aware probabilistic routing approach for mobile opportunistic social networks

A social‐aware probabilistic routing approach for mobile opportunistic social networks
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移动机会社交网络的社交感知概率路由方法

DOI:
10.1002/ett.3230
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发表时间:
2017-09
影响因子:
3.6
通讯作者:
Lin Yaguang
Lin Yaguang
中科院分区:
计算机科学4区
文献类型:
--
作者:
Zhao Ruonan;Wang Xiaoming;Zhang Lichen;Lin Yaguang

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在移动的机会社交网络(MOSNs)中,移动的用户在没有通信基础设施支持的情况下使用便携式设备四处移动并进行消息传输,其中由于高连接不确定性和节点移动性,路由是一个挑战。目前的MOSN路由方案只关注通过利用用户的兴趣或移动性的特性来提高成本效益的交付。在本文中,我们提出了一种新的MOSNs路由方法,其中概率和社会意识的策略相结合,并采用多副本策略。我们首先将MOSN建模为一些重叠的区域,然后考虑用户的中心性,移动性和用户之间的交互,提出与用户的社会特征相关的2个区域相关的中心度。根据中心度的定义,设计了一种社会感知的概率路由方法,该方法采用消息副本控制策略,使得到达目的地概率较高的用户可以获得更多的消息副本.仿真结果表明,该方法优于以往的路由算法的交付率和开销比。
In mobile opportunistic social networks (MOSNs), mobile users move around and conduct message transmission by using their portable devices without the support of communication infrastructures, in which routing is a challenge due to high connection intermittency and node mobility. The current routing schemes for MOSNs only focus on the improvement of cost‐effective delivery by using the characteristics of users' interests or mobility. In this paper, we propose a novel routing approach for MOSNs in which the probabilistic and social‐aware strategies are combined and the multiple‐copy policy is adopted. We first model an MOSN into some overlapping regions and then propose 2 region‐related centrality degrees related to users' social characteristics with the consideration of users' centrality, mobility, and interactions among users. According to the definition of centrality degrees, we design a social‐aware probabilistic routing approach in which a message replica control policy is applied to allow a user with higher encounter probability to the destination and the user could obtain more message replicas. The simulation results show that the proposed approach outperforms the previous routing algorithms in terms of delivery ratio and overhead ratio.
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