Now showing items 1-12 of 111

    • Design and Testing of a Helix Antenna Deployment System for a 1U CubeSat 

      Sureda Anfres, Miquel; Sobrino Hidalgo, Marco; Millán, Oriol; Aguilella, Andrea; Solanellas Bofarull, Arnau; Badia Ballús, Marc; Muñoz Martin, Joan Francesc; Fernandez Capon, Lara Pilar; Ruiz De Azúa Ortega, Juan Adrián; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2021-05)
      Article
      Open Access
      CubeSats have revolutionized Earth Observation and space science, although their small size severely restricts satellite performance and payload. Antenna deployment from a stowed configuration in these small-satellites ...
    • Wake-up radio: an enabler of wireless convergence 

      Cervià Caballé, Martí; Calveras Augé, Anna M.; Paradells Aspas, Josep (Institute of Electrical and Electronics Engineers (IEEE), 2021-01-01)
      Article
      Open Access
      Nowadays, several wireless communication solutions targeted at low-power devices (e.g. sensors, actuators) compete for market dominance. As a consequence, the deployment of the Internet of Things is slowed by fragmentation. ...
    • Radiation pattern prediction for metasurfaces: A neural network-based approach 

      Taghvaee, Hamidreza; Jain, Akshay; Timoneda i Comas, Xavier; Liaskos, Christos; Abadal Cavallé, Sergi; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto (Multidisciplinary Digital Publishing Institute (MDPI), 2021-04-14)
      Article
      Open Access
      As the current standardization for the 5G networks nears completion, work towards understanding the potential technologies for the 6G wireless networks is already underway. One of these potential technologies for the 6G ...
    • In-orbit validation of the fmpl-2 instrument—the gnss-r and l-band microwave radiometer payload of the fsscat mission 

      Muñoz Martin, Joan Francesc; Fernandez Capon, Lara Pilar; Pérez Portero, Adrián; Ruiz De Azúa Ortega, Juan Adrián; Hyuk, Park; Camps Carmona, Adriano José; Carnicero Domínguez, Bernardo; Pastena, Massimiliano (Multidisciplinary Digital Publishing Institute (MDPI), 2021-01-01)
      Article
      Open Access
      The Flexible Microwave Payload-2 is the GNSS-R and L-band Microwave Radiometer Payload on board 3Cat-5/A, one of the two 6-unit CubeSats of the FSSCat mission, which were successfully launched on 3 September 2020 on Vega ...
    • Experimental evaluation of 6BLEMesh: IPv6-based BLE mesh networks 

      Darroudi, Seyed Mahdi; Gómez Montenegro, Carlos (Multidisciplinary Digital Publishing Institute (MDPI), 2020-08-17)
      Article
      Open Access
      Bluetooth Low Energy (BLE) has become a major wireless technology for the Internet of Things (IoT). Recent efforts of academia, industry and standards development organizations have focused on creating BLE mesh network ...
    • Dynamic buffer sizing and pacing as enablers of 5G low-latency services 

      Irazabal Bengoa, Mikel; López Aguilera, M. Elena; Demirkol, Ilker Seyfettin; Nikaein, Navid (2020-08-17)
      Article
      Open Access
      3GPP standards organization is performing an impressive effort trying to reach sub-millisecond latencies for 5G. However, such efforts may become fruitless if exogenously generated delays at transport layer are not considered. ...
    • Deployment mechanism for a L-band helix antenna in 1-Unit Cubesat 

      Fernandez Capon, Lara Pilar; Sobrino Hidalgo, Marco; Milian, Oriol; Aguilella, Andrea; Solanellas Bofarull, Arnau; Badia Ballús, Marc; Muñoz Martin, Joan Francesc; Ruiz De Azúa Ortega, Juan Adrián; Sureda Anfres, Miquel; Camps Carmona, Adriano José (2020-09-08)
      Article
      Restricted access - publisher's policy
      Recently, there is a renewed interest in Earth Observation (EO) of the cryosphere as a proxy of global warming, soil moisture for agriculture and desertification studies, and biomass for carbon storage. Global Navigation ...
    • The flexible microwave payload-2: A SDR-based GNSS-reflectometer and L-Band radiometer for CubeSats 

      Muñoz Martin, Joan Francesc; Fernandez Capon, Lara Pilar; Ruiz De Azúa Ortega, Juan Adrián; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2020-03-23)
      Article
      Open Access
      This article presents the FMPL-2 on board the FSSCat mission, the 2017 ESA Small Sentinel Satellite Challenge and overall Copernicus Masters Competition winner. FMPL-2 is a passive microwave instrument based on a ...
    • Performance analysis and optimal tuning of IETF LPWAN SCHC ACK-on-Error Mode 

      Aguilar Romero, Sergio; Maillé, patrick; Toutain, Laurent; Gómez Montenegro, Carlos; Vidal Ferré, Rafael; montavont, nicolas; Papadopoulos, Georgios Z. (2020-07-10)
      Article
      Open Access
      The Internet Engineering Task Force (IETF) Low Power Wide Area Network (LPWAN) Working Group has developed the Static Context Header Compression (SCHC) framework to enable IPv6 over LPWAN. In order to support 1280-byte ...
    • Multimodal retransmission timer for LPWAN 

      Gómez Montenegro, Carlos; Crowcroft, Jon (2020-02-05)
      Article
      Open Access
      Low Power Wide Area Networks (LPWANs) are experiencing high momentum as an inexpensive solution for enabling Internet of Things (IoT) applications. Recent Internet connectivity support developments are expected to further ...
    • Assessing LoRa for satellite-to-Earth communications considering the impact of Ionospheric Scintillation 

      Fernandez Capon, Lara Pilar; Ruiz De Azúa Ortega, Juan Adrián; Calveras Augé, Anna M.; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2020-09-07)
      Article
      Open Access
      Since the appearance of 5G, Internet of Things (IoT) has gained an increased interest, with multiple technologies emerging and converging to cover different user needs. One of the biggest challenges today is to have global ...
    • Bluetooth Low Energy mesh networks: a standards perspective 

      Darroudi, Seyed Mahdi; Gómez Montenegro, Carlos; Crowcroft, Jon (2020)
      Article
      Open Access
      Bluetooth Low Energy (BLE) mesh networking is an emerging technology domain that promises an important role in the Internet of Things. Significant market opportunities for BLE mesh networking have motivated the recent ...