Browsing by Subject "Protocols de xarxes d'ordinadors"

Now showing items 1-20 of 484

    • A comprehensive study and performance evaluation of commercial VPN gateways and software-defined perimeter in the 5G network 

      Sans Falip, Roger (Universitat Politècnica de Catalunya, 2021-09-09)
      Bachelor thesis
      Restricted access - confidentiality agreement
      Covenantee:   Aalto-yliopisto. Sähkötekniikan korkeakoulu

    • A control plane for WireGuard 

      Paillissé Vilanova, Jordi; Barcia González, Alejandro; López Brescó, Albert; Rodríguez Natal, Alberto; Maino, Fabio; Cabellos Aparicio, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Conference report
      Open Access
      WireGuard is a VPN protocol that has gained significant interest recently. Its main advantages are: (i) simple configuration (via pre-shared SSH-like public keys), (ii) mobility support, (iii) reduced codebase to ease ...

    • A Decentralized, Secure and Censorship Resistant Governance Protocol on Ethereum 

      Rodríguez Setó, Oriol (Universitat Politècnica de Catalunya, 2022-07-06)
      Bachelor thesis
      Open Access
      Decentralized governance system on Ethereum implemented with a unique identification system of using the ERC721 standard.

    • A fault-tolerant algorithm for distributed resource allocation 

      Pessolani, Pablo; Jara, Oscar; Gonnet, Silvio; Cortés, Toni; Tinetti, Fernando (2017-11-01)
      Article
      Open Access
      Resource allocation is a usual problem that must be faced during a distributed system design. Despite the large number of algorithms proposed in literature to solve this problem, most papers lack of detailed descriptions ...

    • A flexible protocol communications approach for a supervisory system 

      Valle Alarcón, Rafael; Serrat Fernández, Juan (Institute for Communication Technology Management (CTM), 1989)
      Conference report
      Open Access
      This paper deals with the communication protocol intended to control up to 1016 devices of a new supervisory system. It has been conceived in two complementary phases. The first one (Cycle-A) is intended to inform the ...

    • A GA-based simulation system for WMNs: performance analysis for different WMN architectures considering transmission rate and OLRS protocol 

      Matsuo, Keita; Oda, Tetsuya; Barolli, Admir; Ikeda, Makoto; Barolli, Leonard; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Open Access
      In this paper, we evaluate the performance of two WMN architectures considering throughput, delay, jitter and fairness index metrics. For simulations, we used ns-3. We compare the performance for two architectures considering ...

    • A general, fault tolerant, adaptive, deadlock-free routing protocol for network-on-chip 

      Stroobant, Pieter; Abadal Cavallé, Sergi; Tavernier, Wouter; Alarcón Cot, Eduardo José; Colle, Didier; Pickavet, Mario (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Open Access
      The paper presents a topology-agnostic greedy protocol for network-on-chip routing. The proposed routing algorithm can tolerate any number of permanent faults, and is proven to be deadlock-free. We introduce a specialized ...

    • A genetic algorithm-based system for Wireless Mesh Networks: analysis of system data considering different routing protocols and architectures 

      Oda, Tetsuya; Elmazi, Donald; Barolli, Admir; Sakamoto, Shinji; Barolli, Leonard; Xhafa Xhafa, Fatos (Springer, 2016-07-01)
      Article
      Open Access
      Wireless mesh networks (WMNs) are attracting a lot of attention from wireless network researchers. Node placement problems have been investigated for a long time in the optimization field due to numerous applications in ...

    • A machine learning based Distributed Congestion Control Protocol for multi-hop wireless networks 

      Astudillo Leon, Juan Pablo; Cruz Llopis, Luis Javier de la; Rico Novella, Francisco José (2023-07-01)
      Article
      Open Access
      The application areas of multi-hop wireless networks are expected to experience sustained growth in the next years. This growth will be further supported by the current possibility of providing low-cost communication ...

    • A new MAC approach in wireless body sensor networks for health care 

      Otal Ruiz, Begoña; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (INTECH, 2011-02)
      Part of book or chapter of book
      Open Access

    • A Proposal for Inter-domain QoS Rounting Based on Distributed Overlay Entities and QBGP 

      Yannuzzi, Marcelo; Fonte, Alexandre; Masip Bruin, Xavier; Monteiro, Edmundo; Sánchez López, Sergio; Curado, Marilia; Domingo Pascual, Jordi (2004-09)
      Article
      Open Access
      This paper proposes a novel and incremental approach to Inter-Domain QoS Routing. Our approach is to provide a completely distributed Overlay Architecture and a routing layer for dynamic QoS provisioning, and to use QoS ...

    • A Proposal of modification in Thorup Zwick Routing algorithm for future Internet 

      Bathla, Yatish (Universitat Politècnica de Catalunya, 2012-07-23)
      Master thesis
      Open Access
      [ANGLÈS] The Thorup and Zwick routing scheme (usually referred as TZ scheme) is a very well-known compact routing scheme which aims at reducing the scalability problem of routing in Internet. In this work, we propose a ...

    • A proxy design to leverage the interconnection of CoAP wireless sensor networks with web applications 

      Ludovici, Alessandro; Calveras Augé, Anna M. (2015-01-09)
      Article
      Open Access
      In this paper, we present the design of a Constrained Application Protocol (CoAP) proxy able to interconnect Web applications based on Hypertext Transfer Protocol (HTTP) and WebSocket with CoAP based Wireless Sensor Networks. ...

    • A quantitative evaluation of reordering in OBS networks and its impact on TCP performance 

      Perelló Muntan, Jordi; Gunreben, Sebastian; Spadaro, Salvatore (IEEE, 2008)
      Conference report
      Open Access
      This paper presents a layered framework to measure the reordering introduced by contention resolution strategies in OBS networks. In particular, characterization is based on the reordering metrics proposed by the IETF IPPM ...

    • A reliable system for JXTA-Overlay P2P platform considering number of authentic files, security and QoS parameters 

      Liu, Yi; Elmazi, Donald; Sakamoto, Shinji; Barolli, Leonard; Xhafa Xhafa, Fatos; Uchida, Kazunori (2015)
      Conference report
      Open Access
      The reliability of peers is very important for safe communication in Peer-to-Peer (P2P) systems. The reliability of a peer can be evaluated based on the reputation and interactions with other peers to provide different ...

    • A security framework for JXTA-overlay 

      Arnedo Moreno, Joan; Matsuo, Keita; Barolli, Leonard; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2009)
      Conference report
      Open Access
      At present time, the maturity of P2P research field has pushed through new problems such us those related with security. For that reason, security starts to become one of the key issues when evaluating a P2P system and it ...

    • A simulation system for WSNs as a digital eco-system approach considering goodput metric 

      Barolli, Leonard; Yang, Tao; Mino, Gjergji; Durresi, Arjan; Xhafa Xhafa, Fatos (Institute of Electrical and Electronics Engineers (IEEE), 2010)
      Conference report
      Open Access
      Sensor networks are a sensing, computing and communication infrastructure that are able to observe and respond to phenomena in the natural environment and in our physical and cyber infrastructure. The sensors themselves ...

    • A survey of communication protocols for internet of things and related challenges of fog and cloud computing integration 

      Dizdarevic, Jasenka; Carpio, Francisco; Jukan, Admela; Masip Bruin, Xavier (2019-01-01)
      Article
      Open Access
      The fast increment in the number of IoT (Internet of Things) devices is accelerating the research on new solutions to make cloud services scalable. In this context, the novel concept of fog computing as well as the combined ...

    • A survey of Opportunistic Network techniques for message forwarding. 

      Rodriguez Aranguren, Sandra (Universitat Politècnica de Catalunya, 2013-11-28)
      Master thesis
      Open Access
      The aim of this Master Thesis is to present the investigation results of the different routing schemes that are used in opportunistic networks, the so-called opportunistic routing schemes. In special the routing scheme ...

    • A taxonomy and survey of SCTP research 

      Budzisz, Lukasz; Garcia, Johan; Brunstrom, Anna; Ferrús Ferré, Ramón Antonio (2012-08)
      Article
      Restricted access - publisher's policy
      The Stream Control Transmission Protocol (SCTP) is a relatively recent general-purpose transport layer protocol for IP networks that has been introduced as a complement to the well-established TCP and UDP transport protocols. ...