The Effects of Link and Node Capacity on Traffic Dynamics in Weighted Scale-Free Networks
MetadataShow full item record
The effect of link and node capacity on traffic dynamics are investigated in weighted scale-free networks by adopting a traffic routing model with local node strength information. The link bandwidth is controlled by: Bij = max(βwij , 1), and the capacity of nodes is controlled by: max(γsi, 1). The phase transition from free flow to congestion is reproduced. The optimal routing strategy is sought out. When β increases from zero, the optimal strategy changes from preferring low-strength nodes to high-strength nodes. When β ≈ 1.0, there will be two optimal routing strategies. When β is low, the system’s behavior is controlled by link bandwidth, while it is controlled by node capacity when β is high. Our work may be useful for the design of modern traffic systems and communication networks.
The original publication is available at : http://www.springerlink.com
Showing items related by title, author, creator and subject.
Chai, Pey San Nancy (2011)Backhaul networks are used to interconnect access points and further connect them to gateway nodes which are located in regional or metropolitan centres. Conventionally, these backhaul networks are established using ...
Hu, Mao Bin; Wu, Yong Hong; Jiang, R.; Wu, Q.; Wang, W. (2009)In this paper, the traffic flow on weighted scale-free networks is investigated based on local routing strategy using link weights. The capacity of links is controlled by max(βwlj , 1). It is shown by simulations that two ...
Hu, Mao-Bin; Jiang, R.; Wu, Yong-Hong; Wang, Wen-Xu; Wu, Q. (2008)In this paper, the packet traffic flow on weighted scale-free networks is investigated based on the local routing strategy using link weights: The capacity of links is controlled by max(βwlj,1), and the capacity of nodes ...