Mobilität im ,,Future Internet“

ZusammenfassungEine der Herausforderungen im ,,Future Internet“ ist durch die Mobilität der Benutzer aber auch durch die der Ressourcen gegeben. Während Benutzer zunehmend mit tragbaren Geräten auf Internetdienste zugreifen, wurden Internetprotokolle unter der Annahme stationärer Knoten entworfen. Im Artikel wird ein Überblick über Mechanismen zur Unterstützung von Gerätemobilität gegeben, die für eine mobilitätsfreundliche Architektur des Future Internet von Relevanz sind. Darunter fallen Mechanismen zur Verbesserung der Konnektivität und Tolerierung von Verbindungsunterbrechungen sowie Mechanismen zur effizienten Adressierung und für übergangsloses Handoff-Management. Zusätzlich wird das Konzept der Mobility-Awareness vorgestellt, das auf Basis aktueller Bewegung reaktive und proaktive Adaptierungen von Netzwerkprotokollen ermöglicht.Die Mobilität von Netzwerkressourcen wird als zweite Form der Mobilität im Überblick diskutiert. Zusammen mit der Netzwerkvirtualisierung kann die Ressourcenmigration zur Flexibilisierung des Future Internet beitragen. Ressourcen wie virtuelle Links und virtuelle Router können zur Erreichung unterschiedlicher Ziele, wie zum Beispiel zur Verbesserung der Netzwerkqualität, Robustheit oder Energieeffizienz, migriert werden.

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