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Electronic pre-equalization for 43 Gb/s DQPSK has been demonstrated for the first time. Waveform distortion caused by bandwidth narrowing to 18.1 GHz by cascaded 10 Gb/s ROADMs has been adequately pre-equalized by a SiGe-BiCMOS LSI with 6-bit, 43 GS/s digital-to-analog converters.
This paper describes the implementation and evaluation of layer-1 bandwidth-on-demand (BoD) capabilities in the Japanese academic backbone network, called SINET3. The network has a nationwide GMPLS-based layer-1 platform and provides reservation-based and signaling-based BoD services. The overall architecture for providing BoD services including its capabilities, user interface, path calculation,...
This paper proposes and evaluates recovery methods for high-availability layer-1 BoD service. It also proposes a segment recovery architecture that hides the recovery operation from the users' view. Evaluations in an experimental environment are reported.
This paper describes the network design and configurations of the new Japanese academic infrastructure, called SINET3, which provides a rich variety of network services to more than 700 universities and research institutions. Since the start of full-scale operations in June 2007, the network has expanded its services to include multi-layer transfer services (IP, Ethernet, and layer-1), enriched virtual...
This paper proposes a novel traffic engineering technique for layer-1 bandwidth on demand service; it offers flexible resource allocation and path provision. Evaluation results in a real network are reported.
This paper describes flexible resource allocation and provision methods for bandwidth on demand and networks on demand in the new Japanese academic backbone network, called SINET3. SINET3 has provided a wide variety of network services such as IPv4/IPv6 dual stack, L3VPN, L2VPN/VPLS, and L1VPN services for the research and education community and started layer-1 bandwidth-on-demand services in February...
We propose service parameters, architectures to provide them, pricing policies and a heuristic route-reservation algorithm for a network providing bandwidth reservation services. Bandwidth reservation services allow users to choose or assign service parameters with which users' requirements are satisfied. We classify the parameters by bandwidth reservation contents (ex. video conference, streaming)...
We propose a heuristic routing and reservation algorithm for networks providing reservation services. Important requirements of a reservation service network are to increase network resource utilization, to provide routes satisfying specified levels of quality of service (QoS), and to minimize service interruption under the situation that it is difficult to tell exactly when, how many, and what kinds...
A technique to design signaling and management communication networks (SCN and MCN) is proposed based on experiments using a GMPLS-enabled network. This design technique will provide SCNs and MCNs with a sufficient bandwidth for packet loss-free and jitter-less transmission.
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