Now showing items 1-11 of 11

    • Contention tree-based access for wireless machine-to-machine networks with energy harvesting 

      Vázquez Gallego, Francisco; Kalalas, Charalampos; Alonso Zárate, Luis Gonzaga; Alonso Zárate, Jesús (Institute of Electrical and Electronics Engineers (IEEE), 2017-06)
      Article
      Open Access
      In this paper, we consider a wireless machine-to-machine network composed of end-devices with energy harvesters that periodically transmit data to a gateway. While energy harvesting allows for perpetual operation, the ...
    • Delay and energy consumption analysis of frame slotted ALOHA variants for massive data collection in internet-of-things scenarios 

      Vázquez Gallego, Francisco; Tuset Peiro, Pere; Alonso Zárate, Luis Gonzaga; Alonso Zárate, Jesús (Multidisciplinary Digital Publishing Institute, 2020-01-01)
      Article
      Open Access
      This paper models and evaluates three FSA-based (Frame Slotted ALOHA) MAC (Medium Access Control) protocols, namely, FSA-ACK (FSA with ACKnowledgements), FSA-FBP (FSA with FeedBack Packets) and DFSA (Dynamic FSA). The ...
    • DPCF-M: A medium access control protocol for dense machine-to-machine area networks with dynamic gateways 

      Vázquez Gallego, Francisco; Alonso Zárate, Jesús; Balboteo, Iván; Alonso Zárate, Luis Gonzaga (2013)
      Conference report
      Restricted access - publisher's policy
      Machine-to-Machine (M2M) area networks must provide connectivity between either an M2M application server or an M2M gateway and a large number of M2M devices. In this paper, we consider a densely populated M2M area network. ...
    • Energy analysis of distributed neighbour discovery algorithms based on frame slotted-ALOHA for cooperative networks 

      Vázquez Gallego, Francisco; Alonso Zárate, Jesús; Alonso Zárate, Luis Gonzaga (2012)
      Conference report
      Restricted access - publisher's policy
      The design of communications protocols that exploit the availability of both cellular and short-range radio access interfaces in a same terminal can be exploited to improve the energy efficiency of wireless communications ...
    • Energy and delay analysis of contention resolution mechanisms for machine-to-machine networks based on low-power WiFi 

      Vázquez Gallego, Francisco; Alonso Zárate, Jesús; Alonso Zárate, Luis Gonzaga (2013)
      Conference report
      Restricted access - publisher's policy
      Attaining very high energy efficiency is one of the big challenges to implement Machine-to-Machine (M2M) networks whose lifetime (without human intervention) must be measured in years. In this paper, we consider a synchronized ...
    • Energy harvesting-aware contention tree-based access for wireless machine-to-machine networks 

      Vázquez Gallego, Francisco; Alonso Zárate, Luis Gonzaga; Alonso Zárate, Jesús (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      The Energy Harvesting-aware Contention Treebased Access (EH-CTA) protocol is presented in this paper as a novel Medium Access Control (MAC) protocol for wireless Machine-to-Machine (M2M) networks where enddevices are ...
    • Energy harvesting-aware distributed queuing access for wireless machine-to-machine networks 

      Vázquez Gallego, Francisco; Alonso Zárate, Luis Gonzaga; Alonso-Zárate, Jesús (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      The Energy Harvesting-aware Distributed Queuing access protocol (EH-DQ) is presented in this paper as a novel Medium Access Control protocol for wireless Machineto-Machine networks with energy harvesting capabilities. ...
    • Goodbye, ALOHA! 

      Laya, Andrés; Kalalas, Charalampos; Vázquez Gallego, Francisco; Alonso Zárate, Luis Gonzaga; Alonso Zárate, Jesús (Institute of Electrical and Electronics Engineers (IEEE), 2016-04-21)
      Article
      Open Access
      The vision of the Internet of Things (IoT) to interconnect and Internet-connect everyday people, objects, and machines poses new challenges in the design of wireless communication networks. The design of medium access ...
    • Standardized low-power wireless communication technologies for distributed sensing applications 

      Vilajosana, Xavier; Tuset-Peiro, Pere; Vázquez Gallego, Francisco; Alonso-Zárate, Jesús; Alonso Zárate, Luis Gonzaga (2014-02-10)
      Article
      Open Access
      Recent standardization efforts on low-power wireless communication technologies, including time-slotted channel hopping (TSCH) and DASH7 Alliance Mode (D7AM), are starting to change industrial sensing applications, enabling ...
    • The CTTC 5G end-to-end experimental platform: integrating heterogeneous wireless/optical networks, distributed cloud, and IoT devices 

      Muñoz González, Raul; Mangues Bafalluy, Josep; Vilalta, Ricard; Verikoukis, Christos; Alonso Zárate, Jesús; Georgiadis, Apostolos; Payaró Llisterri, Miquel; Pérez Neira, Ana Isabel; Casellas Regi, Ramón; Martínez Rivera, Ricardo Victor; Núñez Martínez, José; Requena Esteso, Manuel; Pubill, David; Font Bach, Oriol; Henarejos Hernández, Pol; Serra, Jordi; Vázquez Gallego, Francisco (2016-01-29)
      Article
      Open Access
      The Internet of Things (IoT) will facilitate a wide variety of applications in different domains, such as smart cities, smart grids, industrial automation (Industry 4.0), smart driving, assistance of the elderly, and home ...
    • Towards zero-power wireless machine-to-machine networks 

      Vázquez Gallego, Francisco (Universitat Politècnica de Catalunya, 2016-07-19)
      Doctoral thesis
      Open Access
      This thesis aims at contributing to overcome two of the main challenges for the deployment of M2M networks in data collection scenarios for the Internet of Things: the management of massive numbers of end-devices that ...