Exploració per tema "Automatic repeat request"

Ara es mostren els items 1-11 de 11

    • A cooperative ARQ for delay-tolerant vehicular networks 

      Morillo Pozo, Julián David; Trullols Cruces, Óscar; Barceló Ordinas, José María; García Vidal, Jorge (2008-07-25)
      Text en actes de congrés
      Accés obert
      This paper proposes a Cooperative ARQ protocol to be used in delay-tolerant vehicular networks. The proposed scheme has been implemented and evaluated through an experimental testbed, showing that packet losses in ...

    • A novel near-optimum medium acces control protocol for a distributed cooperative ARQ scheme in wireless networks 

      Alonso Zárate, Jesús; Verikoukis, Christos; Kartsakli, Elli; Alonso Zárate, Luis Gonzaga (Institute of Electrical and Electronics Engineers (IEEE), 2008-09-30)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The distributed queuing MAC protocol for cooperative networks (DQCOOP) is presented in this paper as an innovative MAC protocol designed to coordinate the relay retransmissions in a cooperative automatic retransmission ...

    • Analysis of a type II hybrid ARQ strategy in a DS-CDMA packet transmission environment 

      Pérez Romero, Jordi; Agustí Comes, Ramon; Sallent Roig, Oriol (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2003-08)
      Article
      Accés obert
      A type II hybrid automatic repeat request scheme is considered as a retransmission strategy in a direct-sequence code-division multiple-access packet mobile radio network. An analysis based on equilibrium point analysis ...

    • Applying cooperation for delay tolerant vehicular networks 

      Morillo Pozo, Julián David; Barceló Ordinas, José María; Trullols Cruces, Óscar; García Vidal, Jorge (2008-01-18)
      Comunicació de congrés
      Accés obert
      This paper proposes a Cooperative ARQ protocol to be used in delay-tolerant vehicular networks. The proposed scheme has been implemented and evaluated through an experimental testbed, showing that packet losses in ...

    • Energy-efficiency evaluation of a medium access control protocol for cooperative ARQ 

      Alonso Zárate, Jesús; Stavrou, Eirini; Stamou, Adamantia; Angelidis, Pantelis; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2011)
      Text en actes de congrés
      Accés obert
      We present in this paper the evaluation of the energy consumption of PRCSMA, an 802.11-based medium access control protocol designed to coordinate the retransmissions from the relays in a wireless network implementing a ...

    • Extending the lifetime of M2M wireless networks through cooperation 

      Botter, Giuseppe; Alonso Zárate, Jesús; Alonso Zárate, Luis Gonzaga; Granelli, Fabrizio; Verikoukis, Christos (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper we show how a cooperative Medium Access Control (MAC) protocol can help extend the lifetime of Machine to Machine (M2M) networks. A comparison between non-cooperative Automatic Repeat reQuest (ARQ) schemes ...

    • Hybrid turbo FEC/ARQ systems and distributed space-time coding for cooperative transmission 

      Agustín de Dios, Adrián; Vidal Manzano, José; Muñoz Medina, Olga (2005-08-24)
      Article
      Accés obert
      Cooperative transmission can be seen as a "virtual" MIMO system, where the multiple transmit antennas are in fact implemented distributed by the antennas both at the source and the relay terminal. Depending on the system ...

    • Indoor monitoring system based on ARQ signaling generated by a Visible Light Communication link 

      Bas, Joan; Ortega Redondo, Juan Antonio; Busquets González, Martí; Dowhuszko, Alexis (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Visible Light Communications (VLC) is a candidate technology that complements the benefits of radio communication networks, particularly in those situations where a low-cost solution using license-free spectrum is required ...

    • On the performance of the DQRUMA with different scheduling algorithms for multimedia traffic in an indoor environment for W-ATM networks 

      Verikoukis, Christos; Olmos Bonafé, Juan José (Institute of Electrical and Electronics Engineers (IEEE), 2000)
      Text en actes de congrés
      Accés obert
      The performance of the DQRUMA MAC protocol for multimedia traffic in a realistic indoor environment using the guarantee bandwidth minimising delay (GBMD) scheduling policy is evaluated by simulations. The efficiency of the ...

    • Throughput analysis of a medium access control protocol for a distributed cooperative ARQ scheme in wireless networks 

      Alonso Zárate, Jesús; Kartsakli, Elli; Verikoukis, Christos; Alonso Zárate, Luis Gonzaga (2008)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A throughput analysis of the Persistent Relay Carrier Sensing Multiple Access (PRCSMA) protocol is presented in this paper. The protocol has been designed to execute a cooperative ARQ (C-ARQ) scheme in wireless networks. ...

    • Up-link performance of the DQRUMA MAC protocol in a realistic indoor environment for W-ATM networks 

      Verikoukis, Christos; Olmos Bonafé, Juan José (Institute of Electrical and Electronics Engineers (IEEE), 2000)
      Text en actes de congrés
      Accés obert
      This paper evaluates by simulation the performance of the distributed queuing request update multiple access (DQRUMA) MAC protocol in a realistic indoor environment. This protocol has been simulated in conjunction with a ...