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ICTs for a Sustainable World




          grid is assumed to be not present or unreliable. The main  tory to serve a set of users in a rural area. Finally, we plan
          issue in this scenario will be to deploy efficient solutions to  also to analyse the proposed solutions in terms of CAPEX
          limit the amount of required power in the uplink. Finally,  and OPEX, as well as properly dimensioning the solar pan-
          we foresee the exploitation of direct optical connections and  els needed to run the networks and services.
          dedicated radio links to selected locations (e.g., places where
          the bandwidth requirements are higher).
                                                                         6. ACKNOWLEDGMENTS
          Looking then at the other network solutions, we foresee the
          exploitation of flexible, efficient, low-cost, low-power nodes
                                                             This work has received funding from the project EU Hori-
          (SP-Nodes in the figure). Such devices, which will be solar
                                                             zon 2020 Superfluidity (grant agreement No.  671566)
          powered, will virtualize different functionalities, including
                                                             and the Polish National Science Center (decision DEC-
          radio, computing, and transport ones. Each functionality can
                                                             2014/12/S/ST7/00415). We would like to thank the anony-
          be activated/deactivated depending on where the node is lo-
                                                             mous reviewers for their suggestions.
          cated (in the transport part of the network or in the access
          one) and when it is needed. Moreover, the interconnection
                                                                              7. REFERENCES
          between the SP-Nodes will be realized by means of low-cost
          and low-power optical connections, which will implement
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                5. CONCLUSIONS AND FUTURE WORK
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                                                                 Yang Yang, Dongfeng Yuan, Hadi M Aggoune, Harald Haas,
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          the BBU will be also investigated. In addition, we plan to  energy-harvesting relays in cellular networks,” Tech. Rep. 3,
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