Reach-Dependent Capacity in Optical Networks Enabled by OFDM

Bocoi, Adriana; Schuster, Matthias; Rambach, Franz; Kiese, Moritz; Bunge, Christian-Alexander; Spinnler, Bernhard

doi:10.1364/ofc.2009.omq4

Cited by 104 publications

(70 citation statements)

References 2 publications

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“…The NSFNET network (14 knots, 22 links) well-known network is using to simulate most of the work in this area. The second network is the national Backbone of Ivory Cost from the will of the State of Ivory Cost to mesh all Ivorian territory with a fiber optical transport (28 nodes and 46 links) as shown in Figure 2. A guard band is G = 1 slot, and as regards the choice of modulation format, each path has a format according to the principle of "half distance law" [5]. Furthermore, we assume that each connection is associated with a reference frequency and 4-shortest paths determined by the Yen's algorithm [14].…”

Section: Simulation and Analysis Of Resultsmentioning

confidence: 99%

“…M can take the values 1, 2, 3 or 4 depends on the modulation format is BPSK, QPSK, 8-QAM or 16-QAM [5]. The use of OFDM technology allows simultaneous transmission on parallel subcarriers.…”

Section: A Feature Of Flexible Optical Networkmentioning

confidence: 99%

“…Therefore, the load of each connection under this fluctuation is / . Based on the calculation of in [11] with a fixed modulation format, the traffic load is obtained through the following: = = × , where is the number of frequency slots and the modulation efficiency of each modulation format, according to principle of "half law" [5]. The values respectively taken by can be 1, 2, 3 or 4 belong to BPSK, QPSK, 8-QAM or 16-QAM modulations.…”

Section: B Spectrum Allocation For Time-varying Trafficmentioning

confidence: 99%

“…We assumed that the kshortest paths of each connection are determined by Yen's algorithm [14] and an initial path with a reference frequency is associated with each connection. The modulation format used is chosen according to the transmission distance and follow the "half-distance low" [5]. The heuristic can been reflected by the following steps:…”

Section: B Heuristic Multi-spectrum Bands Allocationmentioning

confidence: 99%

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Multi- Spectrum Bands Allocation for Time-Varying Traffic in the Flexible Optical Network

Hamidja¹,

Michel²,

Tra³

et al. 2016

ijacsa

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Abstract-The flexible optical networks are the promising solution to the exponential increase of traffic generated by telecommunications networks. They combine flexibility with the finest granularity of optical resources. Therefore, the flexible optical networks position themselves as a better solution than conventional WDM network. In the operational phase, traffic of connections fluctuates. In fact, the user's need is not the same during day periods. Such traffic may experiment evidence of rising working hours, end of months or years and decreases during the night or on holidays. This variation requires the expansion or contraction of the number of frequency slots allocated to a connection to match the exact needs of the moment. The expansion of the traffic around the reference frequency of connection may lead to blockage because it must share frequency slots with neighboring connections in compliance with the constraints of continuity, contiguity, and non-overlapping. In this study, we offer a technique for allocating frequency slots for time-varying traffic connections. We share out the additional traffic load on different spectrum paths by respecting the constraint of time synchronization related to the differential delay to reduce the blocking rate due to traffic fluctuation.

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Section: Simulation and Analysis Of Resultsmentioning

confidence: 99%

Section: A Feature Of Flexible Optical Networkmentioning

confidence: 99%

Section: B Spectrum Allocation For Time-varying Trafficmentioning

confidence: 99%

Section: B Heuristic Multi-spectrum Bands Allocationmentioning

confidence: 99%

See 2 more Smart Citations

Multi- Spectrum Bands Allocation for Time-Varying Traffic in the Flexible Optical Network

Hamidja¹,

Michel²,

Tra³

et al. 2016

ijacsa

View full text Add to dashboard Cite

show abstract

“…Uma suposição comum utilizada pela literatura O-OFDM é que a distância de transmissão do caminho óptico é o fator mais relevante na definição da QoT [40,41,42], embora a qualidade do canal de transmissão também influencie [43,44].…”

Section: Formato De Modulação E Distância Adaptativaunclassified