Research Article
Elastic Bandwidth Allocation in Flexible OFDM-Based Optical Networks
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@INPROCEEDINGS{10.1007/978-3-642-30376-0_36, author={Konstantinos Christodoulopoulos}, title={Elastic Bandwidth Allocation in Flexible OFDM-Based Optical Networks}, proceedings={1st International ICST Workshop on Cross-layer Algorithms and Protocols for Optical Networks}, proceedings_a={CROSS-LAYER OPTIMIZATION}, year={2012}, month={10}, keywords={Spectrum flexible networks Optical OFDM planning (offline) problem Routing Modulation Level and Spectrum Allocation}, doi={10.1007/978-3-642-30376-0_36} }- Konstantinos Christodoulopoulos
Year: 2012
Elastic Bandwidth Allocation in Flexible OFDM-Based Optical Networks
CROSS-LAYER OPTIMIZATION
Springer
DOI: 10.1007/978-3-642-30376-0_36
Abstract
Orthogonal Frequency Division Multiplexing (OFDM) has recently been proposed as a modulation technique for optical networks, because of its good spectral efficiency, flexibility, and tolerance to impairments. We consider the planning problem of an OFDM optical network, where connections are provisioned for their requested rate by elastically allocating spectrum using a variable number of OFDM subcarriers and choosing an appropriate modulation level taking into account the transmission distance. Using algorithms developed in our previous works, we evaluate the spectrum utilization gains that can be obtained by utilizing the elastic bandwidth allocation of OFDM, when compared to a traditional WDM network.
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