Routing in scale-free networks based on expanding betweenness centrality
Routing in scale-free networks based on expanding betweenness centrality
复制标题
基于扩展介数中心性的无标度网络中的路由
DOI:
10.1016/j.physa.2010.10.002
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发表时间:
2011-03
期刊:
影响因子:
--
通讯作者:
Qian, Tong-Hui
中科院分区:
文献类型:
--
作者:
Guan, Zhi-Hong;Chen, Long;Qian, Tong-Hui
In this paper, an improved routing strategy is proposed for enhancing the traffic capacity of scale-free networks. Instead of using the information of degree and betweenness centrality, the new algorithm is derived on the basis of the expanding betweenness centrality of nodes, which gives an estimate of the traffic handled by the vertex for a certain route set. Since the nodes with large betweenness centrality are more susceptible to traffic congestion, the traffic can be improved by redistributing traffic loads from nodes with large betweenness centrality to nodes with small betweenness centrality in the process of computing the collective routing table. Comparing with results of previous routing strategies, it is shown that the present improved routing performs more effectively.
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