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Utility function recently has been adopted in network studies to describe quality of service. However, the existing utility functions focus only on the effect of power or throughput, so are not suitable to delay and disruption tolerant networking (DTN), where delay and disruption have major impacts on the utility and cannot be ignored. This paper proposes a corresponding sigmoid utility function,...
Quality of Services optimal models often based on the utility function maximization. However the services in Delay and Disruption Tolerant Networking (DTN) have different characters on delay and disruption. So a novel utility function was made to analyze resource pre-fetching and post-fetching in DTN and to prove the relational Pareto improvement and substitutability. Then users' competitions were...
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