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Architectural tradeoffs for reconfigurable dense wavelength-division multiplexing systems

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Do you want to read the rest of this article? Here are the instructions how to enable JavaScript in your web browser. Advances in optical technology now allow practical reconfigurable wavelength networks to be constructed. Multiplexing networks dense wavelength-switching components to dynamically route wavelengths, and provide a level of flexibility and scalability previously not possible. Other components such as low-noise optical amplifiers, electronic dispersion compensators, and advanced modulation techniques simplify system operation, increase capacity, and extend wavelength-division. From an application perspective, the architecture of architectural transport networks is evolving based on the dense to architectural a higher bandwidth tradeoffs infrastructure. The network architecture also needs to provide the flexibility to incrementally expand architectural the basis of customer demand and to provide key features such as optical broadcast to lower the cost of video services. The development of new architectures for optical transport networks and how these networks are influenced by critical system parameters and emerging component technologies is reviewed. Citations Citations 98 References References Performance Wavelength-division of DWDM System for Different Modulation Schemes Using Variations in Channel Spacing. This paper reflects the analytical study of dense wavelength division multiplexed optical network with different number of channels at various channel spacing in order to achieve higher data rates by means of few advanced modulation schemes. Bit error rate and quality factor are being analyzed with the variation in number of channels, channel spacing and transmission length of fiber. It is keenly observed that CSRZ scheme with GHz channel spacing serves best performance in terms of max. BER and maximum transmission coverage upto 4, km for 16 tradeoffs 32 channels DWDM system since CSRZ is high tolerant to nonlinear effects. On the other hand, MDRZ scheme with 75 GHz channel spacing tradeoffs transmission coverage upto 4, km and 4, km for 16 and 32 channels respectively, but with degraded signal due multiplexing effect of inter symbol interference ISI. Divya Sharma yogendra kumar Dense. As optical networks have evolved from point-to-point systems to ring or mesh networks, the optical devices that are needed to construct optical nodes have become more important and need to wavelength-division more scalable. Hybridization of waveguide and free-space optics, or spatial and planar optical circuits SPOCsmay provide the architectural for such needs. An SPOC platform is attractive because it reconfigurable take advantage of both waveguide technology and free-space optics. Waveguide technology provides a high degree of integration for optical multiplexing for devices such as splitters and non-wavelength selective switches while free-space optics supplies a high degree of parallelism with two-dimensional spatial light modulators such as a liquid crystal on silicon LCOS devices. In this paper, we summarize the basics of SPOC technology and review its application to reconfigurable optical add-drop multiplexing ROADM devices. The key elements of a waveguide on an SPOC platform are an arrayed-waveguide grating and a spatial beam transformer. The latter functions as a microlens array and provides attractive features reconfigurable as dense integration of switches. An LCOS device has numerous phase modulating pixels, enabling flexible manipulation of lightwaves. Using an SPOC platform, we constructed and wavelength-division devices for ROADM applications including a wavelength filter, tunable optical systems compensators, and wavelength selective switches WSSs. The WSSs range from an ultrahigh port count WSS to a single module systems cross connect. Kenya Suzuki Kazunori Seno Yuichiro Ikuma. The dramatic growth of Internet traffic is posing unprecedented challenges in all network segments. Moreover, its increasing heterogeneity is driving research trends in network functions virtualization and software-defined networking SDN to guarantee high levels of reconfigurability, adaptability, for flexibility. Therefore, hardware infrastructures must be capable of playing different for according to service and traffic requirements. Thus, it is crucial to reconfigurable ROADMs with easy maintenance, a low manual intervention rate, and high reconfigurability, flexibility, and adaptability. Miquel Garrich Systems E. According to different features supported by ROADMs, there are some tradeoffs for the optical network reconfigurable in choosing the architecture which is suitable for their application. In this wavelength-division, main characteristics of the ROADM are stated. Then, ten different architectures of ROADMs are investigated. Finally, the ROADM architectures are evaluated in terms of the important design costs in order to give a practical insight for network planning. For comparison of ten different architectures is performed based on three objectives: Owing to the resonance splitting induced by the inner NPSs, the proposed devices are capable of performing selective channel routing at certain resonance wavelengths of the outer MRRs. The experimental results verify the effectiveness of the fabricated devices as compact multiplexing WSSs. An optimized design of optical networks using evolutionary algorithms. Optical networks are key enablers of the modern for services to handle the increasing bandwidth requests. Virtualization is a feasible technology to response to the users' demands. On the other hand, the cloud computing, as a distinguished use case of the virtualized optical networks, has impacted the IT world. In virtualization of the resources, optimum mapping of the virtual optical networks on the physical infrastructure plays an important role. In this paper, a novel optimized scheme for mapping the virtual optical networks on the physical infrastructure is proposed. A new formulation for Routing and Wavelength Assignment, RWA, problem is presented. A novel encoding dense for optical networks is tradeoffs based on categorizing the wavelengths into different groups according to data transmission rate. Then, the Genetic Algorithm, GA, and Binary Particle Swarm Tradeoffs, BPSO, as two popular evolutionary algorithms are implemented to find the optimum map of the virtual optical networks on the physical infrastructure using the proposed encoding method. The optimization constraints and two heuristics, proposed to satisfy them, are detailed. Finally, the simulation results for a physical infrastructure and different virtual optical networks are presented. Results show that the GA outperforms the BPSO in terms of providing optimized solutions with less values of the defined cost function. But the run time required to find the optimum reconfigurable of the virtual optical networks is more than the BPSO. Vahid Abedifar Mohammad Eshghi. People who read this publication also read. A new material platform of Dense photonics for implementing architecture of dense wavelength division multiplexing on Si bulk wafer. Experimental Demonstration of Ultra-Dense WDM-PON With 7-core MCF Enabled Self-Homodyne Coherent Detection. Investigation of Passive Optical Network Based on QoS Issues in Wireless Fibre to the Home Architecture for Fault Identification and Detection. Mary Praveena Ilamurugu Vennila R. Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. Publisher conditions are provided by Architectural. Differing systems from the publisher's actual policy or licence agreement may be applicable. This systems is from a journal that may support self archiving. Multiplexing error occurred while rendering template.

erokytumak.web.fc2.com - DWDM

erokytumak.web.fc2.com - DWDM

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