Wednesday, 21 September, 2011
14:30 -- 16:15
Room K

We.9.K • Transport Network Technologies

Chair: Naoya Wada; National Institute of Information and Communication Technology, Japan
We.9.K.1 • 14:30 (Invited)
Challenges of Next Generation Optical Transport Network Development
Andreas Gladisch1; 1T-Systems International, Germany, Germany.
Optical transport networks are one of the key systems that enable cost efficiency of the Internet. Flexible optical networks are discussed for a while as the next generation of optical systems besides the simple increase of capacity. Examples of these functionalities are resiliency, capacity adaptation and dynamic switching. The conditions to benefit from these functionalities in the context of NGN will be discussed. 
We.9.K.2 • 15:00
Field Trial of a 1.5 Tb/s Adaptive and Gridless OXC Supporting Elastic 1000-Fold Bandwidth Granularity
Norberto Amaya1, G. S. Zervas1, Bijan Rahimzadeh Rofoee1, Muhammad Irfan1, Yixuan Qin1, Dimitra Simeonidou1; 1University of Essex, United Kingdom.
An adaptive gridless OXC is demonstrated using field fiber. The OXC adapts its architecture on demand to switch variable type signals in frequency, time and space domain with 1000-fold bandwidth granularity and 1.5 Tb/s throughput
We.9.K.3 • 15:15
First Demonstration of Optical Packet and Circuit Integrated Ring Network Testbed
Hideaki Furukawa1, Hiroaki Harai1, Takaya Miyazawa1, Satoshi Shinada1, Wataru Kawasaki2, Naoya Wada1; 1National Institute of Information and Communications Technology, Japan; 2FUJITSU TELECOM NETWORKS LIMITED, Japan.
We develop an optical packet and circuit integrated ring network testbed with polarization-independent 4x4 optical switches and gain-controlled optical amplifiers. We demonstrate error-free (frame-error-rate <1E-8) 66-km transmission and switching of 100-Gbps optical packets and 14-wavelength-paths.
We.9.K.4 • 15:30
Experiments of operating mutiple virtual networks over IP-optical network
Akeo Masuda1, Akinori Isogai1, Takashi Miyamura1, Kohei Shiomoto1; 1NTT Network Service Systems Laboratories, NTT Corporation, Japan.
We show results of experiment that successfully proved our concept of network virtualization over IP-optical networks. Our control servers provided multiple virtual networks quickly and they were able to be operated individually with high performance.
We.9.K.5 • 15:45
Optical Flow Switching Based on Time-Shift Scheduling
Yosuke Katsukawa1, Shaowei Huang2, Akio Tajima2, Soichiro Araki2, Ken-ichi Kitayama1; 1Electrical, Electronic and Information Engineering, Osaka University, Japan; 2System Platforms Research Laboratories, NEC Corporation, Japan.
Novel global time-shift scheduling for optical flow switching is proposed, which takes into account the propagation delay of optical path. Numerical simulation demonstrates higher throughput and better wavelength utilization, compared with conventional scheduling algorithm.
We.9.K.6 • 16:00
Time Shared Optical Network (TSON): A Novel Metro Architecture for Flexible Multi-Granular Services
Georgios S. Zervas1, Joan Triay1,2, Norberto Amaya1, Yixuan Qin1, Cristina Cervelló-Pastor2, Dimitra Simeonidou1; 1CSEE, University of Essex, United Kingdom; 2Department of Telematics Engineering, Universitat Polit`ecnica de Catalunya, Spain.
This paper presents the TSON metro mesh network architecture for guaranteed, statistically-multiplexed services. It proposes tunable time-wavelength assignment, one-way tree-based reservation and node architecture. Results demonstrate high network efficiency, fast service delivery and guaranteed QoS.