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Orthogonal frequency division multiple access (OFDMA) relay networks have been drawing much more attention in recent years. Cross layer optimization has been shown to be an efficient tool for resource allocation in OFDMA relay networks. However, the fairness issues for OFDMA relay networks have not been examined clearly in existing literature. In this paper, we considered a relay scenario with multiple...
In this paper, we examine the cascading failure on BA networks with scale-free property based on a load redistribution rule. Assuming that the robustness is quantified by the critical threshold Tc, at which a phase transition occurs from normal state to collapse, we find the strongest robustness against cascading failures in the case of alpha =1, which is a tunable parameter in our model. We further...
In order to increase the value of the phrase transition on the regular network, which can be used to measure the capacity of network to process traffic flow, firstly we propose a simple model for traffic network based on randomly choosing the shortest path and further investigate the value of the phrase transition from the free phrase to congested phrase in the regular network. And then, four different...
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