Search results for "TCP global synchronization"

showing 6 items of 6 documents

Evaluation of the Impact of Multipath Data Dispersion for Anonymous TCP Connections

2007

Despite recent research efforts, wireless ad hoc networking technology remains especially prone to security attacks. In this work our contribution focuses on determining the optimal trade-off between traffic dispersion and TCP performance to reduce the chances of successful eavesdropping, while maintaining acceptable levels of throughput. For our experiments we propose a multipath-enhanced version of DSR, and we compare Tahoe, Reno and Sack TCP variants. Results show that multipath traffic dispersion impact on TCP throughput is bounded to a maximum of 25-35%, and that there is only a minimal dependence on the number of routes used, the number of consecutive packets sent on each route, the r…

CUBIC TCPTCP Friendly Rate ControlTCP WestwoodTCP Westwood plusTCP VegasTCP accelerationComputer sciencebusiness.industryComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSZeta-TCPbusinessTCP global synchronizationComputer networkThe International Conference on Emerging Security Information, Systems, and Technologies (SECUREWARE 2007)
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Adaptive Low Priority Packet Marking for Better TCP Performance

2003

This paper proposes a packet marking scheme for TCP traffic. Unlike previous literature work, in our scheme the majority of TCP packets are transmitted as high priority. The role of a low priority packet appears that of a probe, whose goal is to early discover network congestion conditions. Low priority packets are marked according to an adaptive marking algorithm. Numerical results show that our scheme provides improved throughput/delay performance.

CUBIC TCPTCP VegasTCP accelerationbusiness.industryComputer scienceComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSReal-time computingTCP tuningTCP global synchronizationTCP Westwood plusTCP Friendly Rate ControlZeta-TCPbusinessComputer network
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TCP Performance in Mobile Ad hoc Networks

2013

International audience; In this paper, we present a survey of TCP (Transmission Control Protocol) protocol for better performance in the MANET (Mobile Ad Hoc Network). After a short presentation of the main features of TCP, we give the most important problems from which TCP suffer in MANET. We present after that some approaches proposed in the literature in order to improve its performance. Our paper contains also a performance evaluation of TCP NewReno and TCP Vegas transport protocols under AODV and DSR routing protocols. The simulations are conducted under varying conditions of number of TCP connections, number of nodes and mobility.

CUBIC TCPTCP accelerationComputer scienceTCP tuning050801 communication & media studies02 engineering and technologyTCP Friendly Rate ControlTCP Westwood[INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI]0508 media and communications0202 electrical engineering electronic engineering information engineeringZeta-TCPMobile Ad hoc NetworksProblems of TCP in MANETTCP Protocolbusiness.industry05 social sciencesComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSImproving of TCP in MANET020206 networking & telecommunicationsINGENIERIA TELEMATICATCP VegasTCP global synchronizationPerformance evaluationTCP NewRenoCompound TCPbusinessComputer network
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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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Performance Evaluation of a new Adaptive Packet Marking Scheme for TCP over DiffServ Networks

2004

In differentiated services (DiffServ) networks, packets may receive a different treatment according to their differentiated services code point (DSCP) label. As a consequence, packet marking schemes can be devised to differentiate packets belonging to the same TCP flow, with the goal of improving the experienced performance. The paper presents an extensive performance evaluation of a new adaptive packet marking scheme, applied to a traffic scenario composed of TCP flows with different lengths. The proposed marking scheme is most efficient when applied to a scenario composed of all long-lived flows. In a realistic mixed traffic scenario, composed of both long-lived and short-lived TCP flows,…

Scheme (programming language)Queueing theoryTCP Friendly Rate ControlDifferentiated servicesbusiness.industryComputer scienceNetwork packetComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSbusinesscomputerComputer networkcomputer.programming_languageTCP global synchronization
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An analytical model of a new packet marking algorithm for TCP flows

2005

In Differentiated Services networks, packets may receive a different treatment according to their Differentiateo Services Code Point (DSCP) label. As a consequence, packet marking schemes can also be devised to differentiate packets belonging to a same TCP flow, with the goal of improving the performance experienced. This paper presents an analytical model for an adaptive packet marking scheme proposed in our previous work. The model combines three specific sub-models aimed at describing (i) the TCP sources aggregate, (ii) the marker, and (iii) the network status. Preliminary simulation results show quite accurate predictions for throughput and average queue occupancy. Besides, the research…

TCP accelerationComputer Networks and CommunicationsComputer scienceTransmission Control ProtocolTCP tuningThroughputRandom early detectionRound-trip delay timeH-TCPActive queue managementTCP sequence prediction attackComputer securitycomputer.software_genrelaw.inventionTCP Westwood plusTCP Friendly Rate ControlPacket switchinglawInternet ProtocolZeta-TCPQueueNetwork packetbusiness.industryComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSToken bucketTelecommunications networkTCP global synchronizationDifferentiated servicesNetwork servicebusinesscomputerComputer network
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