Abstract
Spectrum defragmentation is important for an elastic optical network (EON) to enhance its spectrum utilization. However, the cause of spectrum fragmentation is the dynamicity of client-layer services. Thus, it is of significance to also consider the reconfiguration of the client-layer services when carrying out spectrum defragmentation. We expect that this effort can further improve the network spectrum utilization. Motivated by this, we propose cross-layer spectrum defragmentation for an IP and EON network so as to achieve better spectrum utilization by this joint effort. Simulation results show that the proposed cross-layer scheme is beneficial to greatly improve bandwidth blocking performance (BBP) compared to the other schemes that do not consider such joint effort.
© 2018 The Author(s)
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