Now showing items 1-20 of 52

    • Midiendo retardos y pérdidas en las redes móviles de alta velocidad 

      Prieto Suárez, Iria Upna; Izal Azcárate, Mikel Upna; Magaña Lizarrondo, Eduardo Upna; Morató Osés, Daniel Upna (2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Mobile networks are constantly evolving, but still, due to their nature, it is not trivial to analayse how they face up different kinds of traffic. On the Internet a wide range of services can be found. Usually the majority ...
    • On the nature of unused TCP connections in web traffic 

      Torres García, Luis Miguel Upna; Magaña Lizarrondo, Eduardo Upna; Izal Azcárate, Mikel Upna; Morató Osés, Daniel Upna (2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The popularity of the web and the requirements introduced by current web content have pushed for the development of new techniques that meet these challenges and improve the experience of the users. In particular, during ...
    • A simple passive method to estimate RTT in high bandwidth-delay networks 

      Prieto Suárez, Iria Upna; Izal Azcárate, Mikel Upna; Magaña Lizarrondo, Eduardo Upna; Morató Osés, Daniel Upna (IARIA, 2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper presents a simple passive algorithm to estimate the Round-Trip-Time (RTT) of a TCP connection in high bandwidth-delay network scenarios. In these scenarios, a passive RTT estimator that can be used on captured ...
    • Detecting disruption periods on TCP servers with passive packet traffic analysis 

      Prieto Suárez, Iria Upna; Izal Azcárate, Mikel Upna; Magaña Lizarrondo, Eduardo Upna; Morató Osés, Daniel Upna (IARIA, 2015)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper presents a simple passive algorithm to monitor service availability. The algorithm is based on packet counting over a passive traffic trace of a population of clients accessing servers of interest. The major ...
    • A proposal of burst cloning for video quality improvement in optical burst switching networks 

      Espina Antolín, Félix Upna; Morató Osés, Daniel Upna; Izal Azcárate, Mikel Upna; Magaña Lizarrondo, Eduardo Upna (2013)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    • Pamplona-traceroute: topology discovery and alias resolution to build router level Internet maps 

      García Jiménez, Santiago Upna; Magaña Lizarrondo, Eduardo Upna; Morató Osés, Daniel Upna; Izal Azcárate, Mikel Upna (IEEE, 2013)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      An Internet topology map at the router level not only needs to discover IP addresses in Internet paths (traceroute) but also needs to identify IP addresses belonging to the same router (IP aliases). Both processes, discovery ...
    • A popularity-aware method for discovering server IP addresses related to websites 

      Torres García, Luis Miguel Upna; Magaña Lizarrondo, Eduardo Upna; Izal Azcárate, Mikel Upna; Morató Osés, Daniel Upna (IEEE, 2013)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The complexity of web traffic has grown in the past years as websites evolve and new services are provided over the HTTP protocol. When accessing a website, multiple connections to different servers are opened and it is ...
    • TNS research in progress 

      Izal Azcárate, Mikel Upna; Prieto Suárez, Iria Upna; Espina Antolín, Félix Upna; Morató Osés, Daniel Upna; Magaña Lizarrondo, Eduardo Upna (Universidad Politécnica de Cartagena, Servicio de Documentación, 2012)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper summarizes latest works of Telematic, Networks and Services research group (TNS) of Public University of Navarra in the topics of FIERRO thematic network. Last two papers sent to major conferences are ...
    • Traffic generator using Perlin Noise 

      Prieto Suárez, Iria Upna; Izal Azcárate, Mikel Upna; Morató Osés, Daniel Upna; Magaña Lizarrondo, Eduardo Upna (IEEE, 2012)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Study of high speed networks such as optical next generation burst or packet switched networks require large amounts of synthetic traffic to feed simulators. Methods to generate self-similar long range dependent traffic ...
    • Ingress traffic classification versus aggregation in video over OBS networks 

      Izal Azcárate, Mikel Upna; Espina Antolín, Félix Upna; Morató Osés, Daniel Upna; Magaña Lizarrondo, Eduardo Upna (2010)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Optical Burst Switched (OBS) networks may become a backbone technology for video-on-demand providers. This work addresses the problem of dimensioning the access link of an ingress node to the optical core network in a ...
    • ETOMIC advanced network monitoring system for future Internet experimentation 

      Csabai, István; Fekete, Attila; Hága, Péter; Hullár, Béla; Kurucz, Gábor; Laki, Sándor; Mátray, Péter; Stéger, József; Vattay, Gábor; Espina Antolín, Félix Upna; García Jiménez, Santiago Upna; Izal Azcárate, Mikel Upna; Magaña Lizarrondo, Eduardo Upna; Morató Osés, Daniel Upna; Aracil Rico, Javier Upna; Gómez, Francisco; González, Iván; López Buedo, Sergio; Moreno, Víctor; Ramos, Javier (Springer-Verlag Berlin Heidelberg, 2010)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      ETOMIC is a network traffic measurement platform with high precision GPS-synchronized monitoring nodes. The infrastructure is publicly available to the network research community, supporting advanced experimental ...
    • Arquitectura y diseño de un modelo de red OBS para simulación 

      Espina Antolín, Félix Upna; Armendáriz, Javier; Izal Azcárate, Mikel Upna; Morató Osés, Daniel Upna; Magaña Lizarrondo, Eduardo Upna (2009)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Optical Burst Switching (OBS) es una nueva tecnología de conmutación óptica capaz de soportar una gran demanda de ancho de banda en backbones ópticos con Wavelength Division Multiplexing (WDM). Muchos investigadores están ...
    • Techniques for better alias resolution in Internet topology discovery 

      García Jiménez, Santiago Upna; Magaña Lizarrondo, Eduardo Upna; Morató Osés, Daniel Upna; Izal Azcárate, Mikel Upna (IEEE, 2009)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      One of the challenging problems related with network topology discovery in Internet is the process of IP address alias identification. Topology information is usually obtained from a set of traceroutes that provide IP ...
    • Improving efficiency of IP alias resolution based on offsets between IP addresses 

      García Jiménez, Santiago Upna; Magaña Lizarrondo, Eduardo Upna; Morató Osés, Daniel Upna; Izal Azcárate, Mikel Upna (IEEE, 2009)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In order to get a router-level topology in Internet, IP address alias resolution techniques allow to identify IP addresses that belong to the same router. There are several proposals to make this identification, some based ...
    • Internet mapping at IP level 

      García Jiménez, Santiago Upna; Magaña Lizarrondo, Eduardo Upna (2009)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The final objective of our research is to develop new techniques and ideas to create topology maps at IP level, representing Internet as a graph where nodes were routes. This means closer to reality.
    • IP addresses distribution in Internet and its application on reduction methods for IP alias resolution 

      García Jiménez, Santiago Upna; Magaña Lizarrondo, Eduardo Upna; Izal Azcárate, Mikel Upna; Morató Osés, Daniel Upna (IEEE, 2009)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Discovery of Internet topology is an important and open task. It is difficulted by the high number of networks and internetworking equipments, and even by the dynamic of those interconnections. Mapping Internet at router-level ...
    • Preemption window for burst differentiation in OBS 

      Klinkowski, Miroslaw; Careglio, Davide; Morató Osés, Daniel Upna; Solé Pareta, Josep (IEEE, 2008)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      This paper presents a novel control architecture for optical burst switching networks to efficiently apply burst preemption without the resources overbooking, which is specific to conventional OBS. Simulation results prove ...
    • Video over OBS Networks 

      Espina Antolín, Félix Upna; Morató Osés, Daniel Upna; Izal Azcárate, Mikel Upna; Magaña Lizarrondo, Eduardo Upna (2008)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    • Mejoras en la identificación de tráfico de aplicación basado en firmas 

      Santolaya Bea, Néstor; Magaña Lizarrondo, Eduardo Upna; Izal Azcárate, Mikel Upna; Morató Osés, Daniel Upna (2008)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Traffic identification has been based traditionally on transport protocol ports, associating always the same ports with the same applications. Nowadays that assumption is not true and new methods like signature identification ...
    • Detección de congestión en la Internet europea 

      Hernández, Ana; Magaña Lizarrondo, Eduardo Upna; Izal Azcárate, Mikel Upna; Morató Osés, Daniel Upna (IEEE, 2007)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper we present a study about the utilization of one-way delay measurements to detect and characterize network congestion in the european Internet. The experiments have been made using the ETOMIC platfom that ...