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Maintaining user connectivity over heterogeneous wireless networks will be a necessity with the wide spread of wireless networks and limited geographic coverage and capacity of each network. In, the authors propose super node system architecture based on the concept of Delay Tolerant Network (DTN) to overcome roaming user intermittent connections over interconnected heterogeneous wireless networks. Mobile ad hoc networks play a key role in the super node system as it can provide coverage for areas that lack a network infrastructure to bridge gaps between wireless networks within the system.
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