AN EFFICIENT BANDWIDTH ALLOCATION STRATEGY FOR SCALE-FREE NETWORKS

Zhong-Yuan Jiang (), Man-Gui Liang (), Shuai Zhang (), Shu-Juan Wang () and Dong-Chao Guo ()
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Zhong-Yuan Jiang: Institute of Information Science, Beijing Jiaotong University, Beijing 100044, P. R. China;
Man-Gui Liang: Institute of Information Science, Beijing Jiaotong University, Beijing 100044, P. R. China;
Shuai Zhang: Institute of Information Science, Beijing Jiaotong University, Beijing 100044, P. R. China;
Shu-Juan Wang: Institute of Information Science, Beijing Jiaotong University, Beijing 100044, P. R. China;
Dong-Chao Guo: Institute of Information Science, Beijing Jiaotong University, Beijing 100044, P. R. China;

International Journal of Modern Physics C (IJMPC), 2012, vol. 23, issue 10, 1-9

Abstract: Traffic capacity is critical for various networks and strongly depends on the distribution of link's bandwidth resources. In this paper, we propose a betweenness-based bandwidth allocation strategy in which the bandwidth of each linklijis allocated proportionally to the product(1 + Bi)α(1 + Bj)α, where α is a tunable parameter, andBiandBjare the betweenness of nodeiand nodej, respectively. The optimal value of α is achieved by extensive simulations and slightly increases with the network size. Our new bandwidth allocation strategy achieves the highest traffic capacity when compared with the average bandwidth allocation strategy and the previously proposed degree-based bandwidth allocation strategy. Our work will be beneficial for network service providers to improve the traffic capacity by efficiently allocating or reallocating the overall finite link's bandwidth resources of networks such as the Internet, urban transport networks and airway networks.

Keywords: Scale-free network; bandwidth allocation; traffic capacity; efficient betweenness; 89.75.Hc; 45.70.Vn; 05.70.Fh (search for similar items in EconPapers)
Date: 2012
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DOI: 10.1142/S0129183112500659

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