For an interesting approach of optical orthogonal frequency division multiple access (OFDMA) to facilitate network virtualization, read this paper. The authors focus on some of the key issues of the future Internet—network virtualization mechanisms, programmable network architectures, parallelism of optical transmission, and guaranteed quality of service provisioning—and provide sufficient background and sound performance analysis for an OFDMA-based system in comparison with one that is time division multiple access (TDMA) based. Both approach and results are explained clearly. A highly useful read for researchers focusing on future Internet technologies.
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