Search results for "Internet Protocol"

showing 10 items of 30 documents

Network and System Performance Management for Next Generation Networks

2006

The physical and logical structures of next generation network and service environment is complex and requires increasingly sophisticated and complicated tools to be fully controllable and well managed. The main problem that has risen is that the old telemanagement model has not enough flexibility to manage rapidly and constantly changing network environment. 3G and 4G networks are basically IP based and the knowledge of IP type traffic management is somewhat new and challenging to telecom vendors. The present way of controlling and managing telecom systems is to use Non Real Time off-line PM (Performance Monitoring) and tools. Time periods between tuning can now be some days to some weeks …

Flexibility (engineering)Service (systems architecture)Performance managementbusiness.industryComputer sciencelaw.inventionNetwork elementReal-time Control SystemlawManagement systemNext-generation networkInternet ProtocolbusinessNetwork management stationComputer network20th International Conference on Advanced Information Networking and Applications - Volume 1 (AINA'06)
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Stability of Positive Systems in WSN Gateway for IoT&IIoT

2020

Modern sensor networks work on the basis of intelligent sensors and actuators, their connection is carried out using conventional or specifically dedicated networks. The efficiency and smooth transmission of such a network is of great importance for the accuracy of measurements, sensor energy savings, or transmission speed. Ethernet in many networks is typically based on the TCP/IP protocol suite. Regardless of whether or not the network transmission is wired or wireless, it should always be reliable. TCP ensures transmission reliability through retransmissions, congestion control and flow control. But TPC is different in networks based on the UDP protocol. The most important here is the tr…

Flow control (data)0209 industrial biotechnologyAutomatic controlbusiness.industryComputer scienceMetzler matrixComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSNetwork system stability020206 networking & telecommunications02 engineering and technologyWireless sensor networkslaw.inventionNetwork congestion020901 industrial engineering & automationIntelligent sensorIndustrial IoTlawHeaderInternet Protocol0202 electrical engineering electronic engineering information engineeringUser Datagram ProtocolSoftware testing methodologybusinessWireless sensor networkComputer network
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QoS Mechanisms for IEEE 802.11 Wireless LANs

2004

Currently the Internet provides users with access to information across the world using IP technology. Until now most access points to the Internet have been fixed stations at given locations, but with increasing sales of mobile devices, mobility has become a major trend. Therefore, the Internet is becoming more and more heterogeneous due to the recent explosion of wireless networks. The IEEE 802.11 wireless LAN (WLAN) is the most widely used WLAN standard nowadays. Currently the IEEE 802.11 standard specifies an over-the-air interface between wireless devices. However, QoS services over this technology are still being defined aiming to provide support to multiple applications. Thus, a larg…

IEEE 802.11uWi-Fi arrayComputer scienceInter-Access Point ProtocolMobile computinglaw.inventionIEEE 802.11lawWireless lanInternet ProtocolWirelessFixed wirelessIEEE 802.11sbusiness.industryWireless networkQuality of serviceComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSWireless Multimedia ExtensionsTelecommunications networkWLAN Authentication and Privacy InfrastructureWireless site surveyThe InternetIEEE 802.11e-2005businessTelecommunicationsMobile deviceNeuRFonComputer network
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EECDC-MAC: An energy efficient cooperative duty cycle MAC protocol

2012

In this paper, we propose a novel energy efficient cooperative duty cycle MAC (EECDC-MAC) protocol in which sensor nodes use fixed wakeup rendezvous scheduling to exchange messages and a cooperative transmission mechanism to avoid overuse of nodes with lower residual energy. Numerical results demonstrate that the EECDC-MAC protocol can prolong the entire network longevity efficiently in comparison with an existing cooperative duty cycle MAC protocol, CDC-MAC, and another popular duty cycle MAC protocol, prediction wakeup MAC (PW-MAC) protocol.

Internet Protocol Control ProtocolTelecommunication network reliabilitybusiness.industryComputer scienceDuty cycleComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSRendezvousResidual energybusinessWireless sensor networkComputer networkScheduling (computing)Efficient energy use2012 IFIP Wireless Days
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Formal verification of a Cooperative Automatic Repeat reQuest MAC protocol

2012

Author's version of an article published in the journal: Computer Standards & Interfaces. Also available from the publisher at: http://dx.doi.org/10.1016/j.csi.2011.12.001 Cooperative communications, in which a relay node helps the source node to deliver its packets to the destination node, are able to obtain significant benefits in terms of transmission reliability, coverage extension and energy efficiency. A Cooperative Automatic Repeat reQuest (C-ARQ) MAC protocol has been recently proposed to exploit cooperative diversity at the MAC layer. in this paper, we validate the integrity and the validity of the C-ARQ protocol using formal methods. The protocol logic is modeled in SDL and implem…

Internet Protocol Control Protocolcomputer.internet_protocolComputer scienceVDP::Mathematics and natural science: 400::Information and communication science: 420::Algorithms and computability theory: 422Distributed computingAutomatic repeat requestGeneral Inter-ORB ProtocolData_CODINGANDINFORMATIONTHEORYInternet protocol suitefinite model-checkingComputer Science::Networking and Internet ArchitecturePROMELAComputer Science::Information Theorybusiness.industryNode (networking)Link Control ProtocolComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKScooperative communicationsCooperative diversityprotocol verificationHardware and ArchitecturebusinessLawcomputerSoftwareReverse Address Resolution ProtocolComputer networkComputer Standards & Interfaces
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Multicast TV over WLAN in a University Campus Network

2009

One of the multimedia services offered by the campus network of the Polytechnic University of Valencia is TV over IP. This service works well in the devices connected directly to the wired network but we have detected some problems when the receivers access to the campus network through wireless IEEE 802.11, especially when devices roam across the Campus. In this paper we propose and evaluate a server-based solution to minimize the packet loss and reduce the lack of service when the mobile devices roam from an Access Point to another Access Point in the wireless network. This solution uses a location system to modify the behaviour of standard multicasting protocols in order to get a near-se…

MulticastComputer sciencebusiness.industryWireless networkcomputer.internet_protocolComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSIPTVInternet protocol suiteCampus networkPacket lossNetwork access pointRoamingbusinessTelecommunicationscomputerComputer network2009 Fifth International Conference on Networking and Services
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Pilot Prototype of Autonomous Pallets and Employing Little’s Law for Routing

2015

Application of autonomous control for shop-floor scheduling by considering real-time control of material flows is advantageous to those assembly lines with dynamic and uncertain circumstances. Among several potential processors with computing and communication capabilities—for representing autonomous material carriers—wireless sensor nodes seem as promising objects to be applied in practice. For realizing autonomy in making scheduling and routing-control decisions some methodologies need to be embedded in the nodes. Among several experimented methodologies, e.g., artificial intelligence, genetic algorithm, etc., in the context of a doctoral research, in this current special case of assembly…

Queueing theoryEngineeringJob shop schedulingbusiness.industryDistributed computingLittle's lawDistributed objectScheduling (computing)law.inventionData sharinglawEmbedded systemInternet ProtocolWirelessbusiness
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<title>Revenue-maximization-based adaptive WFQ</title>

2002

In the future Internet, di erent applications such as Voice over IP (VoIP) and Video-on-Demand (VoD) arise with di erent Quality of Service (QoS) parameters including e.g. guaranteed bandwidth, delay jitter, and latency. Different kinds of service classes (e.g. gold, silver, bronze) arise. The customers of di erent classes pay di erent prices to the service provider, who must share resources in a plausible way. In a router, packets are queued using a multi-queue system, where each queue corresponds to one service class. In this paper, an adaptive Weighted Fair Queue based algorithm for traAEc allocation is presented and studied. The weights in gradient type WFQ algorithm are adapted using r…

RouterService qualityVoice over IPAdaptive algorithmbusiness.industryNetwork packetComputer scienceQuality of serviceReal-time computingService providerTelecommunications networklaw.inventionlawInternet ProtocolRevenueThe InternetbusinessQueueWeighted fair queueingComputer networkSPIE Proceedings
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A Migration Path for the Internet: From Best-Effort to a QoS Capable Infrastructure by Means of Localized Admission Control

2000

Looking back at many proposals appeared on the scene in these years, a fundamental lesson to be learned is that their success or failure is strictly tied to their backward compatibility with existing infrastructures. In this paper, we consider the problem of providing explicit admission control decisions for QoS aware services. We rely the decision to admit a new flow upon the successful and timely delivery, through the Internet, of probe packets independently generated by the end points. Our solution, called GRIP (Gauge&Gate Realistic Internet Protocol), is fully distributed and scalable, as admission control decisions are taken at the edge network nodes, and no coordination between router…

Routerbusiness.industryComputer scienceNetwork packetResource Reservation Protocolcomputer.internet_protocolQuality of serviceInternet layerDistributed computingComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSAdmission controlBackward compatibilitylaw.inventionlawInternet ProtocolThe InternetbusinesscomputerComputer network
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Latency factor in worldwide IP routed networks

2014

Current Border Gateway Protocol (BGP) serves for worldwide internet backbone connections between different Autonomous Systems (AS) on the routing level. Continuously in real-time changing environment core routers calculate routing decisions based on path-vector database entries. AS path-vector database may contain multiple paths for various Internet Protocol (IP) prefix destinations where smallest entity in the path-vector is AS. In real world AS can be internet service operator, university or any other organization willing to participate in internet network via multi-homed uplinks. Unfortunately, internal part of AS is hidden in path-vector database thus excluding factors like latency, pac…

Routing protocolbusiness.industrycomputer.internet_protocolComputer scienceDistributed computingComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSEnhanced Interior Gateway Routing ProtocolIP forwardingAutonomous system (Internet)Internet backbonelaw.inventionlawInternet ProtocolBorder Gateway ProtocolDefault-free zonebusinesscomputerComputer network2014 IEEE 2nd Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE)
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