Cooperative session control over core and overlay networks for a new generation network

This paper proposes a cooperative session control method over core and overlay networks for a new generation network (NWGN). In the method, the call setup time is guaranteed via cooperating core and overlay networks while minimizing processing and traffic loads on the core network. During session control, each peer selects either the core or overlay network to establish the session based on the measured latency on the overlay network. Proprietary technology (the so-called Blacklist method) was used for latency estimation on the overlay network. In addition, this paper explains a developed test-bed system and discusses the evaluation results.