Journal of Networks - Academy Publisher

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On Local CAC Schemes for Scalability of High-speed Networks Javier Aracil, José A. Hernández, Antonio J. Elizondo, Raúl Duque, and Óscar Gonzalez de Dios Storage and Mirroring in Single and Dual Section Metro WDM Rings under Different Traffic Scenarios Taisir E.H. El-Gorashi and Jaafar M. H. Elmirghani Optical Code Processing System, Device, and its Application Naoya Wada SLA-Aware Survivability Helio Waldman and Darli A. A. Mello JAVOBS: A Flexible Simulator for OBS Network Architectures Oscar Pedrola, Miroslaw Klinkowski, Davide Careglio, Josep Solé-Pareta, Sébastien Rumley, and Christian Gaumier 225 230 242 251 256
JOURNAL OF NETWORKS, VOL. 5, NO. 2, FEBRUARY 2010 129 Special Issue on Transparent Optical Networking Guest Editorial The development of the transparent optical-fiber based transmission and networking have revolutionized modern telecommunications and consequently have influenced dramatically the working methods and everyday life of the societies and individuals. The excellent progress with that is reviewed and reported in this Special Issue on Transparent Optical Networking which contains fifteen carefully selected papers based on the contributions to the 10 th Anniversary International Conference on Transparent Optical Networks ICTON 2008, Athens, Greece, June 22-26, 2008, www.itl.waw.pl/icton . ICTON is receiving technical co-sponsorship by the IEEE Photonics Society (formerly LEOS). All papers in this Special Issue have been submitted by Editors’ invitations. The first paper entitled Control and Management Issues in All-Optical Networks by R. Rejeb, M.S. Leeson, C. M. Machuca, and I. Tomkos, introduces a management system for ensuring the secure and continued functioning of the network. The second paper on Optical Transmission of OFDM Ultra-wideband Signals beyond 40 Gb/s by Y. Ben-Ezra, M. Ran, B.I. Lembrikov, U. Mahlab, M. Haridim, A. Leibovich, proposes for the first time the highly efficient method of RF and optical signal mixing based on two different architectures: the parallel-RF/serial-optics architecture characterized by all-optical mixing for sub-carrier multiplexing, and the parallel-RF/parallel-optics architecture based on the array of 12x10 GHz components with directly modulated VCSELs and 12 multimode optical fibers. The third paper on Characterization of Wavelength Tunable Lasers for Future Optical Communication Systems by P. M. Anandarajah, A. Kaszubowska-Anandarajah, R. Maher, K. Shi and L. P. Barry, investigates the possibility of using tunable lasers (TLs) in DWDM wavelength packet switched networks by focusing on the characterisation of the instantaneous frequency drift of a TL due to wavelength tuning and direct modulation. Characterization of the linewidth of the TLs is presented to verify the feasibility of using TLs in systems employing advanced modulation formats. The fourth paper on Signal Processing Algorithms in 100Gbit/s Optical Coherent and Non-coherent Receivers with PSK Modulation by Ch. Hebebrand and W. Rosenkranz, addresses multi-level PSK modulation formats with coherent and non-coherent detection, and reviews signal processing algorithms like mitigation of phase noise, the clock and carrier recovery algorithms as well as the equalizer structures and their performance. The fifth paper entitled A New All-Optical Switching Node Including Virtual Memory and Synchronizer by S. Batti, M. Zghal, and N. Boudriga, presents an architecture for an all optical switching node suitable for optical packet and optical burst switching which provides appropriate contention resolution schemes and QoS guarantees. A new concept of a ‘virtual memory’ is developed to allow controllable and reasonable periods for delaying optical traffics. Implementation issues are discussed, and the implementation and performance of an all-optical synchronizer able to synchronize arriving data units to be aligned on the clock signal associated with the beginning time of slots in the node with an acceptable error is reported. The sixth paper entitled Electronic Predistortion for Compensation of Fiber Transmission Impairments - Theory and Complexity Considerations by S. Hellerbrand and N. Hanik, revises principles of electronic pre-distortion technique to combat transmission impairments on fiber-optic communication links, and different methods to implement this method are explained. The Authors focus on the implementation complexity of this scheme and they highlight how the complexity scales for increasing channel data rates. The seventh paper on Photonic Routing Systems Using All-optical, Hybrid Integrated Wavelength Converter Arrays by L. Stampoulidis, E. Kehayas, P. Bakopoulos, D. Apostolopoulos, P.Zakynthinos, D. Petrantonakis, H. Avramopoulos, A. Poustie, and G. Maxwell, presents the realization of demanding functionalities required in highcapacity photonic routers using compact and multi-functional photonic processing components including: clock recovery, data/label recovery, wavelength routing and contention resolution; all implemented with multi-signal processing using a single photonic chip – a quadruple array of SOA - MZI wavelength converters with a chip area of only 15 x 58 mm 2 . The capability of this technology to build WDM signal processing systems with the simultaneous operation in a four wavelength burst-mode regenerator is presented, and the potential to provide photonic on-chip systems is demonstrated with the first hybrid integrated all-optical burst-mode receiver prototype. The eighth paper on Efficient Signal Processing in OFDM-based Indoor Optical Wireless Links by J. Grubor and K.- D. Langer, proposes a rate-adaptive optical wireless transmission system based on orthogonal frequency division multiplexing for indoor communications. The Authors show that a dynamically adaptive system can greatly enhance performance when compared to static operation, and they demonstrate how a loading algorithm, which optimally performs in power-limited systems, needs to be adjusted if the specific terms of the optical wireless channel are to be rigorously obeyed. Finally it is demonstrated that the transmission rate can be significantly improved even further by accepting a minor increase in the error rate as a result of controlled clipping, and the results are compared with the upper system capacity limit. The ninth paper entitled Characterisation of the PMD Distribution along Optical Fibres and Improvement of the Backbone Fibre Infrastructure by a POTDR by A. Ehrhardt, D. Fritzsche, M. Paul, L. Schuerer, D. Breuer, W. © 2010 ACADEMY PUBLISHER doi:10.4304/jnw.5.2.129-131
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Aims and Scope. Call for Papers and
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