Exploració per tema "Mobile telecommunication systems"

Ara es mostren els items 1-11 de 11

    • 3G access network dimensioning in isolated rural areas based on femtocells 

      Olmo Alòs, Jaume del; Pascual Iserte, Antonio; Vidal Manzano, José; Muñoz Medina, Olga; Agustín de Dios, Adrián (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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      Based on the definition of the access network architecture and the forecast of voice and data traffic evolution, this paper derives engineering rules for radio network dimensioning of 3G femtocell-based access networks in ...

    • Diagnosis of route leaks among autonomous systems in the Internet 

      Siddiqui, Muhammad Shuaib; Montero Banegas, Diego Teodoro; Yannuzzi, Marcelo; Serral Gracià, René; Masip Bruin, Xavier (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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      Border Gateway Protocol (BGP) is the defacto inter-domain routing protocol in the Internet. It was designed without an inherent security mechanism and hence is prone to a number of vulnerabilities which can cause large ...

    • Efficient margin adaptive scheduling for MIMO-OFDMA systems 

      Moretti, Marco; Pérez Neira, Ana Isabel (2013-01)
      Article
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      In this paper we address the problem of margin adaptive scheduling in the downlink of an orthogonal frequency division multiple access (OFDMA) multiple-input multiple-output (MIMO) system. Optimal resource allocation in ...

    • Energy and delay-constrained routing in mobile ad hoc networks: an initial approach 

      Sánchez Miquel, Laura; Vassileva Vesselinova, Natalia; Barceló Arroyo, Francisco; Carbajo Flores, Patricia (ACM, 2005-10)
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      Energy conservation is a critical issue regarding wireless mobile ad hoc networks, since the nodes are battery restrained and the depletion of their power defines the lifetime of the network. In this work a mechanism for ...

    • Enhanced handover signaling through integrated MME-SDN controller solution 

      Jain, Akshay; López Aguilera, M. Elena; Demirkol, Ilker Seyfettin (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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      The future wireless networks are expected to be extremely dense and heterogeneous, with the users experiencing multi-connectivity through the multiple available radio access technologies (RATs). These prevalent characteristics, ...

    • Implementation and performance evaluation of two fuzzy-based handover systems for wireless cellular networks 

      Mino, Gjergji; Barolli, Leonard; Xhafa Xhafa, Fatos; Durresi, Arjan; Koyama, Akio (HINDAWI, 2009)
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      Wireless mobile networks and devices are becoming increasingly popular to provide users the access anytime and anywhere. We are witnessing now an unprecedented demand for wireless networks to support both data and real-time ...

    • LTE-advanced carrier aggregation supporting fully standard 3GPP MIMO by optical polarization multiplexing 

      Morant Pérez, María; Llorente Sáez, Roberto; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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      LTE-A carrier aggregation investigation demonstrates successful 2×2 MIMO Pol-Mux RoF transmission of five LTE-A carriers modulated in 16QAM in 25 km, three LTE-A carriers in 75 km and an LTE carrier in 100 km SSMF

    • Network architecture and essential features for 5G: the SESAME project approach 

      Goratti, Leonardo; Costa, Cristina E.; Pérez Romero, Jordi; Sallent Roig, Oriol; Ruiz, Cristina; Betzler, August; Sayyad Khodashenas, Pouria; Vahid, Seiamak; Nasr, Karim; Abubakar, Babangida; Whitehead, Alan; Belesioti, Maria; Chochliouros, Ioannis (Springer, 2016)
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      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 learning mobility patterns in cellular networks 

      Sánchez González, Juan; Pérez Romero, Jordi; Agustí Comes, Ramon; Sallent Roig, Oriol (Springer, 2016)
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      This paper considers the use of clustering techniques to learn the mobility patterns existing in a cellular network. These patterns are materialized in a database of prototype trajectories obtained after having observed ...

    • QoS routing in ad-hoc networks using GA and multi-objective optimization 

      Barolli, Admir; Spaho, Evjola; Barolli, Leonard; Xhafa Xhafa, Fatos; Takizawa, Makoto (HINDAWI, 2011)
      Article
      Accés obert
      Much work has been done on routing in Ad-hoc networks, but the proposed routing solutions only deal with the best effort data traffic. Connections with Quality of Service (QoS) requirements, such as voice channels with ...

    • Softwarized LTE self-backhauling solution and its evaluation 

      Gamboa Jimenez, Gonzalo; Demirkol, Ilker Seyfettin (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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      Long Term Evolution (LTE) is projected to be the mostly used mobile technology before 2020, thanks to the high data rates, all IP-based and simplified architecture it brings compared to previous mobile network technologies. ...