Now showing items 1-12 of 12

    • Design considerations for an energy-aware SDN-based architecture in 5G EPON nodes 

      Khalili, Hamzeh; Sayyad Khodashenas, Pouria; Rincón Rivera, David; Siddiqui, Shuaib; Piney da Silva, José Ramón; Sallent Ribes, Sebastián (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      In the evolution of telecommunication industry towards 5G, Ethernet Passive Optical Networks (EPON) technology, with some unique features such as high capacity, low latency, and minimum cost per bit, positions itself as ...
    • Dynamic routing and spectrum allocation in elastic optical networks 

      Sayyad Khodashenas, Pouria (Universitat Politècnica de Catalunya, 2014-06-05)
      Doctoral thesis
      Open Access
      Triggered by emerging services such as high-definition video distribution or social networking, the IP traffic volume has been exponentially increasing to date. Furthermore, the traffic growth rate will not stop here due ...
    • Enabling technologies and benefits of multi-tenant multi-service 5G small cells 

      Giannoulakis, I.; Fajardo, J.O.; García Lloreda, J.; Sayyad Khodashenas, Pouria; Ruiz, Cristina; Betzler, August; Kafetzakis, E.; Pérez Romero, Jordi; Albanese, A.; Paolino, M.; Riggio, R. (2016)
      Conference report
      Restricted access - publisher's policy
      In this manuscript, we present the main concepts of the 5G-PPP SESAME project dedicated to the implementation of Cloud-Enabled Small Cells (CESCs), able to support edge cloud computing in a multi-tenant, multiservice ...
    • Evaluation of the impact of different SDM switching strategies in a network planning scenario 

      Shariati, Behnam; Sayyad Khodashenas, Pouria; Rivas Moscoso, José Manuel; Ben Ezra, Shalva; Klonidis, Dimitrios; Jiménez, Felipe; Velasco Esteban, Luis Domingo; Tomkos, Ioannis (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      We compare SDM joint and independent switching strategies in a planning scenario involving a European backbone network. Joint switching can achieve cost savings of 40-50% with a performance similar to that of independent ...
    • Investigation of mid-term network migration scenarios comparing multi-band and multifiber deployments 

      Shariati, Behnam; Sayyad Khodashenas, Pouria; Rivas Moscoso, José Manuel; Ben Ezra, Shalva; Klonidis, Dimitrios; Jiménez, Felipe; Velasco Esteban, Luis Domingo; Tomkos, Ioannis (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      We compared two different mid-term migration scenarios for core network capacity scaling, realized using either multi-band or multi-fiber systems. We show, under realistic assumptions of current costs, that the multi-fiber ...
    • Network architecture and essential features for 5G: the SESAME project approach 

      Goratti, Leonardo; Costa, Cristina E.; Pérez Romero, Jordi; Sallent Roig, José Oriol; Ruiz, Cristina; Betzler, August; Sayyad Khodashenas, Pouria; Vahid, Seiamak; Nasr, Karim; Abubakar, Babangida; Whitehead, Alan; Belesioti, Maria; Chochliouros, Ioannis (Springer, 2016)
      Conference report
      Restricted access - publisher's policy
      The outstanding and continuous growth of the request of mobile broadband Internet access is creating the unprecedented need to rethink most of the design paradigms of the mobile network. Such trend is accompanied by ...
    • On the performance of dynamic source aggregation of sub-wavelength connections in EONs 

      Sayyad Khodashenas, Pouria; Comellas Colomé, Jaume; Perelló Muntan, Jordi; Spadaro, Salvatore; Junyent Giralt, Gabriel (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      In elastic optical networks, heterogeneous traffic demands are typically supported by a single type of bandwidth-variable transmitters, which is not always spectrum and cost efficient. In light of this, we recently proposed ...
    • Options for cost-effective capacity upgrades in backbone optical networks 

      Shariati, Behnam; Rivas Moscoso, José Manuel; Klonidis, Dimitrios; Tomkos, Ioannis; Ben Ezra, Shalva; Jiménez, Felipe; Marom, Dan M.; Sayyad Khodashenas, Pouria; Comellas Colomé, Jaume; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      Upgrading the capacity of backbone optical networks while delivering contents to the end-users with a reduced cost per bit is a day-by-day challenge of network operators. In this paper, we first discuss several mid-term ...
    • Self-X in SESAME 

      Pérez Romero, Jordi; Sallent Roig, José Oriol; Ruiz, Cristina; Betzler, August; Sayyad Khodashenas, Pouria; Vahid, Seiamak; Nasr, Karim M.; Abubakar, Babangida; Whitehead, Alan; Goratti, Leonardo (2016)
      Conference lecture
      Restricted access - publisher's policy
      This paper addresses the use of Self-X functions to support Small Cell as a Service (SCaaS) provisioning in multi-tenant scenarios, as one of the main components of the SESAME project. After presenting the scenarios, ...
    • Technology pillars in the architecture of future 5G mobile networks: NFV, MEC and SDN 

      Blanco, Begoña; Fajardo, Jose Oscar; Giannoulakis, Ioannis; Kafetzakis, Emmanouil; Peng, Shuping; Pérez Romero, Jordi; Trajkovska, Irena; Sayyad Khodashenas, Pouria; Goratti, Leonardo; Paolino, Michele; Sfakianakis, Evangelos; Liberal, Fidel; Xilouris, George (Elsevier, 2017-11-01)
      Article
      Open Access
      This paper analyzes current standardization situation of 5G and the role network softwarization plays in order to address the challenges the new generation of mobile networks must face. This paper surveys recent documentation ...
    • The role of virtualization in the small cell enabled mobile edge computing ecosystem 

      Goratti, Leonardo; Costa, Cristina; Pérez Romero, Jordi; Sayyad Khodashenas, Pouria; Whitehead, Alan; Chochliouros, Ioannis (Springer, 2017)
      Conference report
      Restricted access - publisher's policy
      Virtualisation is playing a fundamental role in the evolution of telecommunication services and infrastructures, bringing to rethink some of the traditional design paradigms of the mobile network and enabling those ...
    • Using spectrum fragmentation to better allocate time-varying connections in elastic optical networks 

      Sayyad Khodashenas, Pouria; Comellas Colomé, Jaume; Spadaro, Salvatore; Perelló Muntan, Jordi; Junyent Giralt, Gabriel (Institute of Electrical and Electronics Engineers (IEEE), 2014-05-01)
      Article
      Restricted access - publisher's policy
      Elastic optical network (EON) technology arises as a promising solution for future high-speed optical transport, since it can provide superior flexibility and scalability in the spectrum allocation for seamlessly supporting ...