Exploració per autor "Serral Gracià, René"
Ara es mostren els items 7-26 de 35
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Cross-layer multimedia quality enforcement through user aware information in wireless networks
Serral Gracià, René; Yannuzzi, Marcelo; Marín Tordera, Eva; Masip Bruin, Xavier; Sánchez López, Sergio (2010-06-14)
Text en actes de congrés
Accés obertQuality assessment of multimedia traffic is a hot topic. In this paper we present a Multimedia Management System, which can be used on-line to assess and guarantee the quality of multimedia traffic in a wired and wireless ... -
Cross-talk effects on the Regenerator Allocation optimization
Marín Tordera, Eva; Masip Bruin, Xavier; Yannuzzi, Marcelo; Serral Gracià, René; Sánchez López, Sergio (2011)
Text en actes de congrés
Accés obertThis paper studies the impact of considering crosstalk effects in the IA-RWA process and in the regenerator allocation algorithms. First of all, we evaluate if the regenerator allocation optimization is still useful when ... -
Diagnosis of route leaks among autonomous systems in the Internet
Siddiqui, Muhammad Shuaib; Montero Banegas, Diego Teodoro; Yannuzzi, Marcelo; Serral Gracià, René; Masip Bruin, Xavier (Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialBorder Gateway Protocol (BGP) is the defacto inter-domain routing protocol in the Internet. It was designed without an inherent security mechanism and hence is prone to a number of vulnerabilities which can cause large ... -
Distributed Sampling for On-line SLA Assessment
Serral Gracià, René; Barlet Ros, Pere; Domingo Pascual, Jordi (IEEE Communications Society, 2008-09-30)
Text en actes de congrés
Accés obertNew business infrastructures over the Internet pose a new set of traffic constraints. In particular, multimedia and interactive contents require guarantees of bandwidth and delivery time. The broad deployment and real-time ... -
Effcient network performance assessment using Inter-Packet Arrival Times
Serral Gracià, René; Marín Tordera, Eva; Yannuzzi, Marcelo; Masip Bruin, Xavier; Sánchez López, Sergio (IEEE Computer Society Publications, 2010)
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Accés obertNetwork performance measurements have been broadly used in order to debug and to assess the reliability of the network. In general performance measurement is a resource consuming process, which in practice derives in ... -
HIRE: Hidden Inter-packet Red-shift Effect
Ciaccia, Francesco; Romero Ruiz, Ivan; Serral Gracià, René; Nemirovsky, Mario (Institute of Electrical and Electronics Engineers (IEEE), 2020)
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Accés obertOver the years, different techniques have been proposed to detect bottleneck bandwidth and available bandwidth of an end-to-end path. However, to the author's knowledge, no work has been conducted on detecting which link ... -
Improving learning automata-based routing in Wireless Sensor Networks
Ahvar, Ehsan; Yannuzzi, Marcelo; Serral Gracià, René; Marín Tordera, Eva; Masip Bruin, Xavier; Ahvar, Shohreh (Institute of Electrical and Electronics Engineers (IEEE), 2012)
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Accés obertRecent research in the field of Wireless Sensor Networks (WSNs) has demonstrated the advantages of using learning automata theory to steer the routing decisions made by the sensors in the network. These advantages include ... -
Improving TCP performance and reducing self-induced congestion with receive window modulation
Ciaccia, Francesco; Arcas Abella, Oriol; Montero Banegas, Diego Teodoro; Romero Ruiz, Ivan; Milito, Rodolfo; Serral Gracià, René; Nemirovsky, Mario (2019)
Text en actes de congrés
Accés obertWe present a control module for software edge routers called Receive Window Modulation - RWM. Its main objective is to mitigate what we define as self-induced congestion: the result of traffic emission patterns at the ... -
Maximum Coverage at Minimum Cost for Multi-Domain IP/MPLS Networks
Yannuzzi, Marcelo; Masip Bruin, Xavier; Serral Gracià, René; Marín Tordera, Eva; Sprintson, Alex; Orda, Ariel (IEEE Computer Society Publications, 2008)
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Accés obertAt present, service providers have several incentives to extend the reach of long-lived MPLS paths across domains. Providers, however, will face a number of trade-offs while choosing the optimal set of MPLS paths to be ... -
Methodology definition for reliable network experimentation
Serral Gracià, René; Masip Bruin, Xavier; Yannuzzi, Marcelo; Marín Tordera, Eva (Institute of Electrical and Electronics Engineers (IEEE), 2013)
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Accés obertAs researchers in the networking area keep adopting experimental network testing as a valid mechanism to develop, validate, and improve their research, it becomes more apparent that an overall framework supporting and ... -
Modeling physical-layer impairments in multi-domain optical networks
Yannuzzi, Marcelo; Marín Tordera, Eva; Serral Gracià, René; Masip Bruin, Xavier; González de Dios, Óscar; Jimenez Chico, Javier; Verchere, Dominique (IEEE Computer Society Publications, 2011)
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Accés restringit per política de l'editorialThe advantages of optical transparency are still confined to the boundaries of a domain, since the optical signals are subject to O/E/O conversions at the border nodes that separate two optical domains. The extension ... -
Movilidad Ip: macromovilidad, micromovilidad, calidad de servicio y seguridad
Mangues Bafalluy, Josep; Cabellos Aparicio, Alberto; Serral Gracià, René; Domingo Pascual, Jordi; Gómez, A; Miguel, De T; Bagnulo, M; Garcia Olaverri, Alfredo Martin (Asociación de Técnicos de Informática, 2004-01)
Article
Accés oberta actual tendencia hacia la provisión de conectvidad ubícua, independientemente del lugar, instante, aplicación utilizada, o tecnología de acceso ha contrbuÍdo a acuñar la expresión, "Always Best Connected" (ABC), para ... -
Multi-domain optical routing: Is there life beyond extending BGP?
Marín Tordera, Eva; Masip Bruin, Xavier; Yannuzzi, Marcelo; Serral Gracià, René (2014-01-01)
Article
Accés obertThe design of new inter-domain optical routing protocols may start from scratch, or on the contrary exploits all the research already developed in IP networks with the Border Gateway Protocol (BGP). Even though the network ... -
Offloading personal security applications to the Network Edge: a mobile user case scenario
Montero Banegas, Diego Teodoro; Serral Gracià, René (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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Accés restringit per política de l'editorialThis paper discusses some challenges that user mobility imposes over the user-centric protection model against security threats. This model is based on the idea of offloading the security applications from the end user ... -
Ontology-based information extraction from the configuration command line of network routers
Martínez Manzanilla, Anny Gabriela; Yannuzzi, Marcelo; Serral Gracià, René; Ramirez Almonte, Wilson (Springer, 2014)
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Accés restringit per política de l'editorialKnowledge extraction is increasingly attracting the attention of researchers from different disciplines, as a means to automate complex tasks that rely on bulk textual resources. However, the configuration of many devices ... -
Quality of experience aware multimedia provisioning with cross-layer network management
Serral Gracià, René; Marín Tordera, Eva; Yannuzzi, Marcelo; Masip Bruin, Xavier; Sánchez López, Sergio (2010)
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Accés obertThis paper presents a Cross-layer Network Management System (NMS) that allows Service Providers (SPs) to perform cost-effective network resource reservations with their Network Operators (NOs). The novelty of our NMS is ... -
Quality of experience based provisioning for service providers
Serral Gracià, René; Marín Tordera, Eva; Yannuzzi, Marcelo; Masip Bruin, Xavier; Sánchez López, Sergio (2009-12-14)
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Accés obertNowadays Network Operators (NOs) are providing service guaranties to customers by largely overprovisioning their networks, but as the Internet keeps growing, this approach is unveiling important issues in terms of cost and ... -
Quality of experience enforcement in wireless networks
Serral Gracià, René; Yannuzzi, Marcelo; Marín Tordera, Eva; Masip Bruin, Xavier; Sánchez López, Sergio (Springer, 2010-06-01)
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Accés obertIn this paper we present a Multimedia Wireless Management System, which can be used on-line to assess and guarantee the quality of multimedia traffic in a wireless network. The proposed platform uses both network and ... -
Reducing the effects of routing inaccuracy by means of prediction and an innovative link-state cost
Masip Bruin, Xavier; Marín Tordera, Eva; Yannuzzi, Marcelo; Serral Gracià, René; Sánchez López, Sergio (2010-05)
Article
Accés obertThe routing inaccuracy problem is one of the major issues impeding the evolution and deployment of Constraint- Based Routing (CBR) techniques. This paper proposes a promising CBR strategy that combines the strengths of ... -
Regenerator allocation in WDM networks with uncertainities in the Q factor
Marín Tordera, Eva; Yannuzzi, Marcelo; Masip Bruin, Xavier; Serral Gracià, René; Sánchez López, Sergio (2010-06-14)
Text en actes de congrés
Accés obertThe performance of the regenerator allocation algorithms in WDM networks strongly depends on the accuracy of the physical-layer information such as the Q factor. In a translucent WDM network the already installed ...