Impact of local storages on performance of PONs

Implications of implementing a local storage within Passive Optical Networks to enhance Video-on-Demand delivery are critically examined in this work. We conduct packet level simulations in order to study enhancements of Quality of Service attributes. Two architectures where the Passive Optical Network is equipped with and without a local storage server are simulated to study the behavior of packet delays. Further, power consumption models for the mentioned two architectures are formulated to study the impact on network operational power requirement by the addition of local storage equipment. We present simulation results and findings of numerical analysis of power consumption models to study the trade-off between enhanced performances versus increased power requirement.