Contribution to future metropolitan access network planning considering link failures in photonic switched networks

Martins, Indayara Bertoldi; Barbosa, Felipe Rudge; Bonani, Luiz Henrique; Moschim, Edson

doi:10.1007/s11107-012-0379-6

Cited by 4 publications

(8 citation statements)

References 9 publications

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“…Fig.8 a & b, depict the results of the noise figures for both laser sources, as calculated with the spectral (Spt) and power ratio (Pwr) expressions, eq. (3) and (4). Again, the sets of curves represent the noise figures for three different pump currents (120, 140, 160mA) of the SOA.…”

Section: Iv-measurements and Resultsmentioning

confidence: 99%

“…However, the effective utilization of SOAs requires a thorough understanding and characterization of device parameters and dynamic features so that their impact on system performance can be acknowledged. It is our interest to apply SOA devices as high performance photonic switches in optical packet (OPS) and burst (OBS) switching networks [3][4][5]; Fig.1.…”

Section: I-introductionmentioning

confidence: 99%

“…Besides the excellent performance of SOAs as photonic switches, a concern exists that noise and ASE (amplified spontaneous emission) accumulation when multihopping over various optical nodes occurs in OPS/OBS networks [4][5][6]. On the other hand, by considering metro-access optical networks with as many as 36 optical nodes a limited average number of hops results [4,5], and noise accumulation may be mitigated and its impact on system performance controlled. This paper is organized as follows.…”

Section: I-introductionmentioning

confidence: 99%

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Analysis and characterization of semiconductor optical amplifiers for application in photonic switching networks

Barbosa

Maia

Moschim

2013

Optical Metro Networks and Short-Haul Systems VI

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Results and analysis of semiconductor optical amplifiers (SOA) are presented as applied to Photonic switching nodes in OPS/OBS future optical networks. Detailed characterization is provided to investigate physical constraints of optical power, gain and noise figure of SOAs. Two different lasers, one external cavity tunable laser and one DFB laser, verify that although the SOA gain is not significantly sensitive to input source a clear difference on the noise figure (NF) is observed. Another important result is that by limiting the average number of hops in the network accumulated ASE power from the amplifiers should not impair signal quality.

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Section: Iv-measurements and Resultsmentioning

confidence: 99%

Section: I-introductionmentioning

confidence: 99%

Section: I-introductionmentioning

confidence: 99%

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Analysis and characterization of semiconductor optical amplifiers for application in photonic switching networks

Barbosa

Maia

Moschim

2013

Optical Metro Networks and Short-Haul Systems VI

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“…This has been assumed previously in [10] for uniform, regular mesh networks of grade k and links with the same size,…”

Section: B Transport Layermentioning

confidence: 99%

Importance of simulation tools for the planning of optical network

Martins

Rudge

et al. 2015

SPIE Proceedings

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The main proposal of this work is to show the importance of using simulation tools to project optical networks. The simulation method supports the investigation of several system and network parameters, such as bit error rate, blocking probability as well as physical layer issues, such as attenuation, dispersion, and nonlinearities, as these are all important to evaluate and validate the operability of optical networks. The work was divided into two parts: firstly, physical layer preplanning was proposed for the distribution of amplifiers and compensating for the attenuation and dispersion effects in span transmission; in this part, we also analyzed the quality of the transmitted signal. In the second part, an analysis of the transport layer was completed, proposing wavelength distribution planning, according to the total utilization of each link. The main network parameters used to evaluate the transport and physical layer design were delay (latency), blocking probability, and bit error rate (BER). This work was carried out with commercially available simulation tools.

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“…In metropolitan level we have a situation which is more complex to choose a costeffective and high-performance technology, because different types of traffic and transmission rates are being transported, and high flexibility, adaptability and availability of transport capacity are required. Therefore, we also expect WDM to be both technically and economically the most attractive solution at the metropolitan level of optical networks [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Performance of WDM networks with photonic switching and resource distribution planning

Martins

Pérez-Sánchez

Gallion

et al. 2013

Proceedings of the 2013 18th European Conference on Network and Optical Communications &Amp; 2013 8th Conference on Optical Cab

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This article evaluates the performance of Wavelength Division Multiplex (WDM) networks considering two different modes of photonic Switching: Optical Packet Switching (OPS) and Optical Circuit Switching (OCS). A resource distribution planning is proposed including wavelength/amplifier allocation to improve the blocking probability and to ensure signal quality. The present study considered the effects of signal attenuation and dispersion in mesh topology networks, and the actual utilization of each network link for the distribution of wavelengths and amplifiers. The physical network parameters considered had average diameter and average distance, as well as ASE noise accumulation and channel cross-talk. In order to evaluate and compare the performance between WDM-OCS and WDM-OPS, the following parameters were analyzed: delay (latency), blocking probability, and effective network-capacity utilization. Results show a reduction of blocking probability with a small increase in latency in both OCS and OPS, but the WDM-OPS combination presents results with very positive impact. Work was carried out with both analytic modeling and computer simulations.

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Contribution to future metropolitan access network planning considering link failures in photonic switched networks

Cited by 4 publications

References 9 publications

Analysis and characterization of semiconductor optical amplifiers for application in photonic switching networks

Analysis and characterization of semiconductor optical amplifiers for application in photonic switching networks

Importance of simulation tools for the planning of optical network

Performance of WDM networks with photonic switching and resource distribution planning

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