The Experts below are selected from a list of 32427 Experts worldwide ranked by ideXlab platform
M Progler - One of the best experts on this subject based on the ideXlab platform.
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emerging wireless Broadband Networks
IEEE Communications Magazine, 1998Co-Authors: J Mikkonen, C Corrado, C Evci, M ProglerAbstract:The rapid evolution of mobile wireless access Networks toward multimedia support with QoS provision forces the development of advanced wireless Broadband systems with high reliability and high data rate. To achieve this goal, new system design concepts with increased system capacity will be required. In that context, ATM is becoming a major infrastructure, receiving a lot of attention for telecommunication systems since ATM Networks can most effectively support wireless access systems. Wireless ATM systems have low transmission cost, flexible functionality, mobile ATM protocol, and radio access layer protocols. This article overviews the various wireless Broadband systems studied at 5, 19.37, 40, and 60 GHz by European Union funded projects within the ACTS program. Moreover, related standardization activities and network evolution are also addressed.
Stefan Saroiu - One of the best experts on this subject based on the ideXlab platform.
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Residential Broadband Networks: Characteristics and Implications
2008Co-Authors: Marcel Dischinger, Andreas Haeberlen, Krishna P Gummadi, Stefan SaroiuAbstract:2. Measurement Methodology We measured 1500 hosts from 11 major cable/DSL ISPs 2 orders of magnitude larger than prior studies We require no cooperation from the Broadband hosts This allows our measurements to scale Our methodology relies on three key observations: Many residential hosts respond to TCP/ICMP packet probes We can infer several network characteristics using probe trains We can find lots of residential IPs by crawling large P2P Networks 1. Motivation Residential Broadband Networks are widely used >150 million users world-wide, >50% of Internet hosts in the U.S. They are critical for emerging Internet applications Such as VoIP, music and movie downloads, and P2P systems Yet, we understand very little about Broadband Networks They are very different from academic and research Networks There is little data characterizing the Networks at scale Researchers have limited ability to measure commercial Networks
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characterizing residential Broadband Networks
Internet Measurement Conference, 2007Co-Authors: Marcel Dischinger, Andreas Haeberlen, Krishna P Gummadi, Stefan SaroiuAbstract:A large and rapidly growing proportion of users connect to the Internet via residential Broadband Networks such as Digital Subscriber Lines (DSL) and cable. Residential Networks are often the bottleneck in the last mile of today's Internet. Their characteristics critically affect Internet applications, including voice-over-IP, online games, and peer-to-peer content sharing/delivery systems. However, to date, few studies have investigated commercial Broadband deployments, and rigorous measurement data that characterize these Networks at scale are lacking. In this paper, we present the first large-scale measurement study of major cable and DSL providers in North America and Europe. We describe and evaluate the measurement tools we developed for this purpose. Our study characterizes several properties of Broadband Networks, including link capacities, packet round-trip times and jitter, packet loss rates, queue lengths, and queue drop policies. Our analysis reveals important ways in which residential Networks differ from how the Internet is conventionally thought to operate. We also discuss the implications of our findings for many emerging protocols and systems, including delay-based congestion control (e.g., PCP) and network coordinate systems (e.g., Vivaldi).
Achille Pattavina - One of the best experts on this subject based on the ideXlab platform.
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Broadband switching systems: First generation
European Transactions on Telecommunications, 1991Co-Authors: Achille PattavinaAbstract:Several generations of switching systems for Broadband Networks have been developed in the eighties. This paper describes the structures, the properties and performance Of the first generation of such systems known as banyan interconnection Networks. Three classes of these Networks are examined, that is unbuffered Networks, buffered Networks with internal queueing and buffered Networks with output quequeing.
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Performance evaluation of a multicast datagram switch for Broadband Networks
Proceedings IEEE International Conference on Communications ICC '95, 1Co-Authors: Paolo Giacomazzi, Achille PattavinaAbstract:This paper evaluates the traffic performance of a switch architecture for Broadband Networks that is capable of switching variable-length packets. The structure is connectionless, so that no bandwidth reservation takes place before the user packet, or datagram, is transferred. The interconnection network is assumed to be internally non-blocking and provided with input and output queues. The proposed architecture is capable of switching both point-to-point datagrams and multicast datagrams (packets addressing a set of outputs, rather than a single output). An option frequently adopted in ATM switches is also investigated, that is internal speedup both on the inputs and on the outputs of the switch. The performance of the switch is evaluated for different algorithms selecting the switching configuration.
J Mikkonen - One of the best experts on this subject based on the ideXlab platform.
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emerging wireless Broadband Networks
IEEE Communications Magazine, 1998Co-Authors: J Mikkonen, C Corrado, C Evci, M ProglerAbstract:The rapid evolution of mobile wireless access Networks toward multimedia support with QoS provision forces the development of advanced wireless Broadband systems with high reliability and high data rate. To achieve this goal, new system design concepts with increased system capacity will be required. In that context, ATM is becoming a major infrastructure, receiving a lot of attention for telecommunication systems since ATM Networks can most effectively support wireless access systems. Wireless ATM systems have low transmission cost, flexible functionality, mobile ATM protocol, and radio access layer protocols. This article overviews the various wireless Broadband systems studied at 5, 19.37, 40, and 60 GHz by European Union funded projects within the ACTS program. Moreover, related standardization activities and network evolution are also addressed.
Catherine A. Middleton - One of the best experts on this subject based on the ideXlab platform.
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What if there is no killer application? An exploration of a user-centric perspective on Broadband
Journal of Information Technology, 2003Co-Authors: Catherine A. MiddletonAbstract:This paper explores user and provider experiences with Broadband Networks. Drawing on data from an early Broadband trial and from recent studies of consumer Broadband usage, the validity of the commonly held view that widespread adoption of Broadband is dependent upon the development of a killer application is challenged. It is argued that access to Broadband can be valuable for users without the provision of a killer application and that the dynamics of Broadband development are shifting. As more users become content creators and distributors and as it becomes easier for consumers to establish Broadband Networks without help from traditional providers, the existing relationships within the Broadband industry will change. Broadband researchers and stakeholders in the development of Broadband Networks are encouraged to explore and understand the implications of these changes, recognizing that there is much to be learned about deploying Broadband in ways that will create the broad societal benefits promised by its promoters.
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Who Needs a 'Killer App'? Two Perspectives on Content in Residential Broadband Networks
Journal of Research and Practice in Information Technology, 2002Co-Authors: Catherine A. MiddletonAbstract:This paper describes the deployment of residential Broadband Networks by relating two parallel but contrasting stories. Story 1 considers network providers’ search for a killer application to drive demand for Broadband Networks, while Story 2 suggests that consumers have already found a killer application in e-mail and basic connectivity. It appears that residential Broadband Networks are currently being developed with a Story 1 perspective in mind. Story 2 should be assessed in the context of its historical persistence and significance. The implications for future development of residential Broadband Networks are considered when both stories are accepted as plausible.
