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arXiv 1509.07151physics.soc-phcs.NI
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多路复用网络中的信息传输

Information transport in multiplex networks

Cunlai Pu, Siyuan Li, Xianxia Yang, Jian Yang

摘要:

本文研究了由两个耦合子网组成的多路复用网络中的信息传输问题。上层子网称为逻辑层,采用最短路径协议来确定分组传输的逻辑路径,而下层子网充当物理层,其中分组通过具有参数$α$的偏置随机游走机制来递送。通过仿真,得到了最大网络生存时间和最大到达包数对应的最优$α$。选择耦合比随机耦合和选择耦合更好,因为它实现了更好的传输性能。一般来说,下层网络越均匀,传输性能越好,而上层网络则相反。最后,我们提出了一个基于两个子网的拓扑信息的节点的攻击中心,并进一步研究了有针对性的攻击下的传输性能。我们的工作有助于理解复用网络的传播和鲁棒性问题,并为通信系统中更有效和鲁棒的路由架构的设计提供了一些线索。

英文摘要:

In this paper, we study information transport in multiplex networks comprised of two coupled subnetworks. The upper subnetwork, called the logical layer, employs the shortest paths protocol to determine the logical paths for packets transmission, while the lower subnetwork acts as the physical layer, in which packets are delivered by the biased random walk mechanism characterized with a parameter $α$. Through simulation, we obtain the optimal $α$ corresponding to the maximum network lifetime and the maximum number of the arrival packets. Assortative coupling is better than the random coupling and the disassortative coupling, since it achieves much better transmission performances. Generally, the more homogeneous the lower subnetwork, the better the transmission performances are, which is opposite for the upper subnetwork. Finally, we propose an attack centrality for nodes based on the topological information of both subnetworks, and further investigate the transmission performances under targeted attacks. Our work helps to understand the spreading and robustness issues of multiplex networks and provides some clues about the designing of more efficient and robust routing architectures in communication systems.

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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