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tcp throughput prediction

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A Machine Learning Approach to TCP Throughput Prediction: TCP throughput prediction is an important capability in wide area overlay and multi-homed networks where multiple paths may exist between data sources and receivers. This paper describes a new, lightweight method for TCP throughput prediction that can generate accurate forecasts for a broad range of file sizes and path conditions....; Tags: Author, TCP, TCP Throughput Prediction, Throughput Prediction, Tcp/Ip, Networking; White papers 2007-07-16

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On the Predictability of Large Transfer TCP Throughput: With the advent of overlay and peer-to-peer networks, Grid computing, and CDNs, network performance prediction becomes an essential task. Predicting the throughput of large TCP transfers, in particular, has attracted much attention. This paper focuses on the design, empirical evaluation, and analysis of TCP throughput predictors for a broad class...; Tags: Network, TCP, Formula Based Prediction, Tcp/Ip, Networking; White papers 2007-01-01
Understanding TCP Over TCP: Effects of TCP Tunneling on End-to-End Throughput and Latency: TCP tunnel is a technology that aggregates and transfers packets sent between end hosts as a single TCP connection. By using a TCP tunnel, the fairness among aggregated flows can be improved and several protocols can be transparently transmitted through a firewall. Currently, many applications such as SSH, VTun, and...; Tags: Latency, TCP, Tcp/Ip, Networking; White papers 2007-11-16
Enhancing Cable Modem TCP Performance: This white paper discusses the inherent bi-directional behavior of TCP and its performance when used in conjunction with the DOCSIS MAC protocol. It provides typical examples of degradation in TCP throughput and describes how the addition of application awareness and acknowledgment filtering software can be used to improve TCP throughput.; Tags: Cable Modem, TCP, Texas Instruments Inc., Tcp/Ip, Networking, Cable, Telecommunications, Personal Technology; White papers 2003-07-01
An Extension of the TCP Steady-State Throughput Equation for Parallel TCP Flows: Almost a decade after its publication in, the steady-state throughput equation of TCP by Padhye et al. remains the most widely used method for calculating the throughput that a TCP sender obtains under certain environment conditions. While there is now a wealth of other models available, many of which are...; Tags: TCP, Tcp/Ip, Networking; White papers 2007-06-27

Optimizing TCP Retransmission Timeout: Delay spikes on Internet paths can cause spurious TCP timeouts leading to significant throughput degradation. However, if TCP is too slow to detect that a retransmission is necessary, it can stay idle for a long time instead of transmitting. The goal is to find a Retransmission Timeout RTO value that...; Tags: Goal, TCP, Tcp/Ip, Networking; White papers 2005-02-05
Root Cause Analysis for Long-Lived TCP Connections: While the applications using the Internet have changed over time, TCP is still the dominating transport protocol that carries over 90% of the total traffic. Throughput is the key performance metric for long TCP connections. The achieved throughput results from the aggregate effects of the network path, the parameters of...; Tags: Throughput, TCP, Analysis, Tcp/Ip, Networking; White papers 2005-10-27
Is Tampered-TCP Really Effective for Getting Higher Throughput in the Internet?: This paper examines the effectiveness of tampered-TCP whose congestion control mechanism has been modified by malicious users for higher than the normal TCP throughput. This paper focuses on a tampered-TCP in which the increase and decrease ratio of the congestion window size were changed during the congestion avoidance phase. The...; Tags: Throughput, Internet, Congestion, TCP, Tcp/Ip, Networking; White papers 2006-10-19
CDMA Channel Parameters Maximizing TCP Throughput: A single TCP session traversing a wireless channel is considered in this paper, with a constant SIgnal to Noise Ratio SINR at the receiver. The problem of determining the optimal transmission energy per bit is considered, to maximize TCP throughput. Specifically, in the case where direct sequence spread spectrum modulation...; Tags: Throughput, CDMA, TCP, Tcp/Ip, Networking; White papers 2007-01-01
Analysis of TCP Westwood + in High Speed Networks: TCP Westwood+ is modelled and analyzed using stochastic recursive equations. It is shown that for links with Poisson losses and independent and varying delays, TCP Westwood converges to a stationary process with a finite average throughput. The resulting throughput is computed explicitly, and it is shown that it does not...; Tags: Network, TCP, Analysis, TCP Westwood+, Tcp/Ip, Networking; White papers 2006-01-20
Network Calculus Based Simulation for TCP Congestion Control: Theorems, Implementation, and Evaluation: This paper examines the feasibility of incorporating network calculus based models in simulating TCP/IP networks. By exploiting network calculus properties, the authors characterize how TCP congestion control - additive increase and multiplicative decrease AIMD, together with the queue management strategy used in routers, regulates TCP flows. The paper first divides...; Tags: Network, TCP, Tcp/Ip, Networking; White papers 2007-01-01
Making Better Use of All Those TCP ACK Packets: Many TCP connections show an asymmetric traffic pattern where significantly more data is sent in one direction than the other resulting in large numbers of ACK-only packets to be generated. This paper proposes and evaluates two independent approaches for how to make better use of the available space in TCP...; Tags: Worcester Polytechnic Institute, TCP, Tcp/Ip, Networking; White papers 2007-01-01
An Analytic Throughput Model for TCP NewReno: This paper develops a simple and accurate stochastic model for the steady-state throughput of a TCP NewReno bulk data transfer as a function of round-trip time and loss rate. The model builds upon extensive prior work on TCP Reno throughput models but differs from these prior works in three key...; Tags: TCP, Tcp/Ip, Networking; White papers 2007-01-01
TCP Prediction for Adaptive Applications: Adaptive applications, such as real-time multimedia streaming applications, are increasingly using TCP as their underlying transport protocol. To adapt the content, an elastic application needs a prediction of the future available bandwidth. Unfortunately, the socket API does not allow an application to get information from the transport layer. Therefore, this...; Tags: Application, TCP, Deutsche Telekom AG, Tcp/Ip, Networking; White papers 2007-07-15
Transparent TCP Acceleration Through Network Processing: Transparent TCP acceleration is an approach to increasing TCP throughput without requiring any changes in end-system TCP implementations. Network processing technology is used to intercept and transparently relay TCP connections inside the network. Due to the transparent nature of the system, incremental deployment and opportunistic acceleration is easily possible. The...; Tags: Network, Acceleration, TCP, Tcp/Ip, Networking; White papers 2005-08-24
TCP NewReno Throughput in the Presence of Correlated Losses: The Slow-But-Steady Variant: This paper presents an analytical model of steady state throughput of the Slow-but-Steady variant of TCP NewReno as a function of loss event rate, average number of segments lost per loss event, average round trip time, and retransmission timeout value. The presented model is based on the approach proposed by...; Tags: TCP, Tcp/Ip, Networking; White papers 2006-04-06
Machine-Learnt Versus Analytical Models of TCP Throughput: This paper first studies the accuracy of two well-known analytical models of the average throughput of long-term TCP flows, namely the so-called SQRT and PFTK models, and show that these models are far from being accurate in general. The simulations, based on a large set of long-term TCP sessions, show...; Tags: TCP, Tcp/Ip, Networking; White papers 2006-12-11
Throughput Unfairness in TCP Over WiFi: This paper presents a measurement study of TCP performance at an operational WiFi deployment. After presenting the network topology and the tools used to generate and analyze traffic, the throughput performance of competing TCP connections is examined. The paper investigates how throughput is divided among the participating wireless hosts with...; Tags: Strength, TCP, Wi-Fi, Tcp/Ip, Wireless LANs, Networking, Wireless; White papers 2005-11-07
On the Interaction Between Internet Applications and TCP: This paper focuses on passive traffic measurement techniques that collect traces of TCP packets and analyze them to derive, for example, round-trip times or aggregate metrics such as average throughput. The seminal work of Zhang has shown that in more than 50% of the TCP connections observed it is not...; Tags: Internet, Internet Application, TCP, Tcp/Ip, Networking; White papers 2006-10-12
The Impact of Multihop Wireless Channel on TCP Performance: This paper studies TCP performance in a stationary multihop wireless network using IEEE 802.11 for channel access control. It is shown that given a specific network topology and flow patterns, there exists an optimal window size W at which TCP achieves the highest throughput via maximum spatial reuse of the...; Tags: Network, TCP, Tcp/Ip, Networking, Wi-Fi, Wireless; White papers

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