Open Delay Tolerant Network Routing Algorithm Based on Location Information

Mobile Internet access must deal with frequent network disruption, segmentation and highly error rate.Delay tolerant network protocol can help it.However, in this circumstance, the knowledge oracle, that DTN routing algorithms need, is probabilistic uncertain.So a space-based routing algorithm was proposed to eliminate it.Access router information matrixes in Path Predictable Environment were designed to decided k-Anycast router aggregate, so that the generalized k-Anycast can moderate traffic explosion.Utility maximization model allocates bandwidth resources to k eligible access routers in access period, with DTN custody transfer, can be transmitted packets simultaneously to multiple destination.Simulations show that it gains better transmission performance and robustness and more flexibility to support open network topology changes.