Wednesday, 21 September, 2011
11:15 -- 13:00
Room K

We.8.K • Technologies For Efficient Optical Networks

Chair: Ken-ichi Sato; University of Nagoya, Japan
 
We.8.K.1 • 11:15 (Invited)
Exploiting Traffic Dynamics in Power-Aware Logical Topology Design
Edoardo Bonetto2, Luca Chiaraviglio2, Davide Cuda1, Filip Idzikowski3, Fabio Neri2; 1Orange Labs, France; 2Politecnico di Torino, Italy; 3Technische Universität Berlin, Germany.
We propose the Multi-Period Power-Aware Logical Topology Design. We compared two different heuristics and show that exploiting the day-night fluctuations of the traffic can lead to significant power savings at a low reconfiguration cost.
 
We.8.K.2 • 11:45
Impact of Electrical Grooming and Regeneration of Wavelength Paths in Creating Hierarchical Optical Path Networks
Hai-Chau Le1, Hiroshi Hasegawa1, Ken-ichi Sato1; 1Department of Electrical Engineering and Computer Science, Nagoya University, Japan.
We assess the impact of a hybrid hierarchical optical path network that utilizes electrical cross-connects for intermediate grooming and 3R regeneration of wavelength paths. Simulation results proved that it offers up to 60% cost reduction.
 
We.8.K.3 • 12:00
Power Management of Optoelectronic Interfaces for Dynamic Optical Networks
Morea Annalisa1, Salvatore Spadaro2, Olivier Rival1, Jordi Perelló2, Fernando Agraz Bujan2, Dominique Verchere1; 1ALBLF, France; 2UPC, Spain.
We propose a protocol enhancement to manage the power state of optoelectronic interfaces in automatically reconfigurable optical networks. For dynamic traffic scenarios 67% of energy savings have been estimated for the optoelectronic interfaces.
 
We.8.K.4 • 12:15
Contention simulation within dynamic, colorless and unidirectional/multidirectional optical cross-connects
Thierry Zami1; 1Optics, Alcatel-Lucent, France.
By simulating dynamic channel adding/dropping operations of an optical node within WDM transparent networks, we compare different colorless unidirectional/multidirectional layouts in terms of internal blocking rate as function of the traffic load
 
We.8.K.5 • 12:30
Enhanced Differential Delay Compensation in OTN with Dedicated and Shared Buffering Architectures
Joao Santos1,2, João Pedro1,2, Paulo P. Monteiro1,2, João Pires2; 1Nokia Siemens Networks, Portugal; 2Instituto de Telecomunicações, Portugal.
We propose a novel shared buffering architecture and an optimization framework to improve the cost-efficiency of virtually-concatenated OTN networks. We also show that collocated 3R and differential delay compensation results in minor degradation.
 
We.8.K.6 • 12:45
Microring-Based Wavelength Routing Matrix
Andrea Bianco1, Davide Cuda2, Miquel Garrich Alabarce1, Roberto Gaudino1, Guido A. Gavilanes Castillo1, Fabio Neri1; 1Electronics Department, Politecnico di Torino, Italy; 2Orange Labs, Orange Labs, France.
We introduce a passive wavelength routing matrix based on microring resonators for optical packet switching architectures. We assess its technological feasibility and physical scalability which is limited by the coherent crosstalk accumulation.

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