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This paper describes a novel scheme which enables scaling of cellular node applications without disrupting session continuity. With this scheme, states of node applications, including User Equipment (UE) states and transport protocol states, are maintained during scaling operations that are possible in a virtualized environment. A prototype of Mobility Management Entity (MME) of Evolved Packet Core...
We propose a database access extension to the Elastic-Core Architecture, a mobile core network virtualization architecture. The proposed improvements, i.e., using a combination of a caching scheme and a peer-to-peer type backend database with a specific read/write mode, reduce the state sharing load, enable more effective network site operation, and further enhance availability. We implement the architecture...
After a large-scale disaster such as the Great East Japan Earthquake, mobile networks will face a massive number of call attempts for voice communication, which makes it difficult for them to maintain mobile services. In this paper, we propose a new approach to reducing massive traffic congestion under such circumstances and describe the results of an empirical study performed on large-scale evaluation...
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