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  • A holistic approach to ZigBee performance enhancement for home automation networks 

    Betzler, August; Gómez Montenegro, Carlos; Seyfettin Demirkol, Ilker; Paradells Aspas, Josep (2014-08-01)
    Article
    Accés obert
    Wireless home automation networks are gaining importance for smart homes. In this ambit, ZigBee networks play an important role. The ZigBee specification defines a default set of protocol stack parameters and mechanisms ...

  • Bluetooth low energy mesh networks: a survey 

    Gómez Montenegro, Carlos; Darroudi, Seyed Mahdi (MDPI AG, 2017-07-01)
    Article
    Accés obert
    luetooth Low Energy (BLE) has gained significant momentum. However, the original design of BLE focused on star topology networking, which limits network coverage range and precludes end-to-end path diversity. In contrast, ...

  • CoAP congestion control for the Internet of Things 

    Betzler, August; Gómez Montenegro, Carlos; Seyfettin Demirkol, Ilker; Paradells Aspas, Josep (2016-07)
    Article
    Accés obert
    CoAP is a lightweight RESTful application layer protocol devised for the IoT. Operating on top of UDP, CoAP must handle congestion control by itself. The core CoAP specification defines a basic congestion control mechanism, ...

  • CoCoA+: an advanced congestion control mechanism for CoAP 

    Betzler, August; Gómez Montenegro, Carlos; Seyfettin Demirkol, Ilker; Paradells Aspas, Josep (Elsevier, 2015-10-01)
    Article
    Accés obert
    The Constrained Application Protocol (CoAP) has been designed by the Internet Engineering Task Force (IETF) for Internet of Things (IoT) devices. Due to the limited radio channel capacities and hardware resources of such ...

  • Competition: interference-aware multi-channel cross layer protocol for energy-efficient and low-delay networking 

    Sierra Aiello, Guillermo; Seyfettin Demirkol, Ilker; Calveras Augé, Anna M.; Gómez Montenegro, Carlos; García Villegas, Eduard; Betzler, August (Association for Computing Machinery (ACM), 2016)
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    This document aims to present the general ideas and methodology that are planned to be used for the EWSN 2016 Dependability Competition by the Wireless Networks Group of Universitat Politecnica de Catalunya. We designed, ...

  • Congestion control in reliable CoAP communication 

    Betzler, August; Gómez Montenegro, Carlos; Seyfettin Demirkol, Ilker; Paradells Aspas, Josep (Association for Computing Machinery (ACM), 2013)
    Text en actes de congrés
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    The development of IPv6 stacks for wireless constrained devices that have limited hardware resources has paved the way for many new areas of applications and protocols. The Constrained Application Protocol (CoAP) has been ...

  • Contention- and interference-aware flow-based routing in wireless mesh networks: design and evaluation of a novel routing metric 

    Catalán Cid, Miguel; Ferrer, Josep Lluís; Gómez Montenegro, Carlos; Paradells Aspas, Josep (2010)
    Article
    Accés obert
    As the popularity of IEEE 802.11-based Wireless Mesh Networks (WMNs) grows, end users of these environments demand better performance and quality of service (QoS). However, the Medium Access Control (MAC) layer of the ...

  • Dia d'Internet: La Internet de les coses: la revolució que s'acosta 

    Gómez Montenegro, Carlos (2010-05-17)
    Audiovisual
    Accés obert

  • Evaluation of advanced congestion control mechanisms for unreliable CoAP communications 

    Betzler, August; Gómez Montenegro, Carlos; Seyfettin Demirkol, Ilker (2015)
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    Networks of constrained devices play an important role in the Internet of Things (IoT). In such networks congestion may lead to significant performance decrease and is a recurring phenomenon given the restricted hardware ...

  • Experimental evaluation of congestion control for CoAP communications without end-to-end reliability 

    Betzler, August; Isern, Javier; Gómez Montenegro, Carlos; Seyfettin Demirkol, Ilker; Paradells Aspas, Josep (Elsevier, 2016-12-01)
    Article
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    The Constrained Application Protocol (CoAP) has been designed by the Internet Engineering Task Force (IETF) for Internet of Things (IoT) communications. CoAP is a lightweight, request/response-based RESTful protocol that ...

  • Focusing the study on wireless multihop networks 

    Paradells Aspas, Josep; Gómez Montenegro, Carlos (2008)
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    Wireless mesh networks, mobile ad-hoc networks and wireless sensor networks are some of the names related to a more general concept that can be described as wireless multihop networks. The topic of the tutorial is motivated ...

  • From 6LoWPAN to 6Lo: expanding the universe of IPv6-supported technologies for the Internet of Things 

    Gómez Montenegro, Carlos; Paradells Aspas, Josep; Bormann, Carsten; Crowcroft, Jon (2017-12-01)
    Article
    Accés obert
    Leveraging 6LoWPAN, the IETF 6Lo Working Group has targeted adaptation of IPv6 over a new generation of communication technologies for the IoT. These comprise Bluetooth LE, ITU-T G.9959, DECT ULE, MS/TP, NFC, IEEE 1901.2, ...

  • Impact of LQI-based routing metrics on the performance of a one-to-one routing protocol for IEEE 802.15.4 multihop networks 

    Gómez Montenegro, Carlos; Boix Requesens, Antoni; Paradells Aspas, Josep (2010)
    Article
    Accés obert

  • Implementation and evaluation of the enhanced header compression (IPHC) for 6LoWPAN 

    Ludovici, Alessandro; Calveras Augé, Anna M.; Catalán Cid, María Luisa; Gómez Montenegro, Carlos; Paradells Aspas, Josep (2009)
    Article
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    6LoWPAN defines how to carry IPv6 packets over IEEE 802.15.4 low power wireless or sensor networks. Limited bandwidth, memory and energy resources require a careful application of IPv6 in a LoWPAN. The IEEE 802.15.4 ...

  • Infrastructureless smart cities. Use cases and performance 

    Paradells Aspas, Josep; Gómez Montenegro, Carlos; Seyfettin Demirkol, Ilker; Oller Bosch, Joaquim; Catalán Cid, María Luisa (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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    Smart cities are a hot topic nowadays for several reasons. For city managers and citizens a smart city is a concept that should allow providing better services and/or with more efficiency. For technicians a smart city ...

  • Large-scale performance evaluation of the IETF Internet of Things protocol suite for smart city solutions 

    Isern, Javier; Betzler, August; Gómez Montenegro, Carlos; Seyfettin Demirkol, Ilker; Paradells Aspas, Josep (2015)
    Comunicació de congrés
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    The Internet of Things (IoT) intends to interconnect massive amount of heterogeneous, smart devices, with the goal of interweaving the virtual world with the physical world. Smart Cities are typical IoT application domains, ...

  • Modeling the energy performance of LoRaWAN 

    Casals Ibáñez, Lluís; Mir Masnou, Bernat; Vidal Ferré, Rafael; Gómez Montenegro, Carlos (MDPI AG, 2017-10-16)
    Article
    Accés obert
    LoRaWAN is a flagship Low-Power Wide Area Network (LPWAN) technology that has highly attracted much attention from the community in recent years. Many LoRaWAN end-devices, such as sensors or actuators, are expected not to ...

  • Modeling the maximum throughput of bluetooth low energy in an error-prone link 

    Gómez Montenegro, Carlos; Seyfettin Demirkol, Ilker; Paradells Aspas, Josep (2011-11)
    Article
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    We present an analytical model for the maximum throughput of Bluetooth Low Energy (BLE), considering the presence of uncorrelated bit errors and the impact of a key BLE parameter that defines the time between the start ...

  • Modeling the network convergence time in RPL in error-prone, IEEE 802.15.4 chain topology multihop networks 

    Kermajani, Hamidreza; Gómez Montenegro, Carlos (2014)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    This paper presents an analytical model for estimating the network convergence time of IPv6 Routing Protocol for Low-power and Lossy Networks (RPL) in a static chain topology network of IEEE 802.15.4 nodes, in the presence ...

  • Networking solutions for connecting bluetooth low energy enabled machines to the internet of things 

    Nieminen, Johanna; Gómez Montenegro, Carlos; Isomaki, Markus; Savolainen, Teemu; Patil, Basavaraj; Shelby, Zach; Oller Bosch, Joaquim (2014-11-01)
    Article
    Accés restringit per política de l'editorial
    The next wave driving the expansion of the Internet will come from the Internet of Things. Bluetooth LE is a rapidly emerging ultra-low-power radio technology expected to be incorporated in billions of IoT devices in the ...