Juan Pedro Fernandez-Palacios Gimenez

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In the last decade we have witnessed significantly increased utilization of web-based applications such as streaming, sharing, and downloading of multimedia contents that are saturating the capacity of transnational backbones. Globally, consumer mobile devices and network connections grew to 7 billion in 2013, up from 6.5 billion in 2012. Simultaneously,(More)
Current optical transport network infrastructure is supported by nodes with reconfigurable optical add/drop multiplexers (ROADMs). ROADMs provide the network operator with a certain level of flexibility by dynamically reconfiguring optical channels (i.e., wavelengths), without the need for precise knowledge of the traffic growth, enabling remote(More)
This paper discusses the technical feasibility and network-level potential of defragmentation as a means of extending the capacity of optical transport networks. An experimental setup successfully demonstrates the possibility of rearranging connections spectrally in order to compact spectrum and harvest the benefits from more efficient flexible-grid channel(More)
This paper describes the requirements and challenges on WAN due to NFV in case of datacenter interconnections crossing heterogeneous domains for technology, control and vendors. It is presented a new architecture with novel functional building blocks between transport and service layers named E2E harmonization. Such architecture allows efficient(More)
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