Search results for "End-to-end delay"

showing 4 items of 4 documents

Endpoint Admission Control with Delay Variation Measurements for QoS in IP Networks.

2002

In this paper we describe a novel Endpoint Admission Control scheme (EAC) for IP telephony. EAC mechanisms are driven by independent measurements taken by the edge nodes on a flow of packets injected in the network to probe the source to destination path. Our scheme is characterized by two fundamental features. First, it does not rely on any additional procedure in internal network routers other than the capability to apply different service priorities to probing and data packets. Second, the connection admission decision is based on the analysis of the probing flow delay variation statistics. Simulation results, which focus on a IP telephony scenario, show that, despite the lack of core ro…

RouterVoice over IPComputer Networks and Communicationsbusiness.industryComputer scienceNetwork packetQuality of serviceComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSEnd-to-end delayReal-time computingAdmission controlOptical IP SwitchingEnhanced Data Rates for GSM EvolutionbusinessSoftwareComputer network
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Underwater Multirobot Cooperative Intervention MAC Protocol

2020

This work introduces a Medium Access Control (MAC) protocol designed to allow a group of underwater robots that share a wireless communication channel to effectively communicate with each other. The goal of the Underwater Multirobot Cooperative Intervention MAC (UMCI-MAC) protocol presented in this work is to minimize the end to end delay and the jitter. The access to the medium in UMCI-MAC follows a Time Division Multiple Access (TDMA) strategy which is arbitrated by a master, which also has the capability to prioritize the transmission of some nodes over the rest of the network. Two experiments have been carried out with a team of four Autonomous Underwater Vehicles (AUV) in order to comp…

wireless networksaccess protocolsGeneral Computer ScienceComputer scienceUnderwater communicationsEnd-to-end delayTime division multiple accessThroughput02 engineering and technologyteleroboticsTelecomunicació0203 mechanical engineering0202 electrical engineering electronic engineering information engineeringWirelessGeneral Materials ScienceJitterbusiness.industryNetwork packetWireless networkComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSGeneral Engineering020302 automobile design & engineering020206 networking & telecommunicationsApplication layerunderwater communicationslcsh:Electrical engineering. Electronics. Nuclear engineeringremotely operated vehiclesbusinessCommunications protocolRobotsProtocols de xarxes d'ordinadorslcsh:TK1-9971Underwater acoustic communicationComputer networkCommunication channelIEEE Access
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Is TCP Packet Reordering Always Harmful?

2004

IP networks do not provide any guarantee that packets belonging to the same flow are delivered in the correct order. Out-of-order reception of packets was commonly considered due to pathological network conditions (such as link failures, etc.). However, it has been shown that packet reordering is a phenomenon which occurs even in normal network operation, due to a number of link-level and/or router-level implementation features, such as local parallelism and load balancing. Packet reordering is intuitively considered as a negative phenomenon, which may severely affect TCP traffic performance since it is expected to cause inefficient usage of the available link bandwidth and is expected to i…

Link state packetNetwork packetbusiness.industryComputer scienceTransmission Control ProtocolRadio Link ProtocolDistributed computingComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSEnd-to-end delayLoad balancing (computing)law.inventionTCP global synchronizationlawNetwork performancebusinessComputer network
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Adaptive SDN-based architecture using QoE metrics in live video streaming on Cloud Mobile Media

2017

The increasing adoption of smart phones, the increased access to mobile broadband networks and the availability of public cloud infrastructures are aligning to the next generation of truly ubiquitous multimedia services, known as Cloud Mobile Media (CMM) services. Nevertheless, due to an inherit higher and variable end to end delay mainly as a result of the virtualization process, new challenges appear in particular for live video streaming applications in order to keep a good Quality of Experience of the delivered video. Thus, to keep client's satisfaction at good levels in terms of Mean Opinion Score (MOS), we propose an adaptive Software Defined Networking (SDN)-based architecture runnin…

Schedulebusiness.industryComputer scienceMean opinion scoreMobile broadbandEnd-to-end delayCloud computingVirtualizationcomputer.software_genreVideo qualityQuality of experiencebusinesscomputerComputer network2017 Fourth International Conference on Software Defined Systems (SDS)
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