Global synchronization protection for bandwidth sharing TCP flows in high-speed links

Lautenschlaeger, Wolfram; Francini, Andrea

doi:10.1109/hpsr.2015.7483103

Cited by 14 publications

(13 citation statements)

References 19 publications

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“…The RED algorithm is quite effective due to simplicity of its implementation in the network hardware, but it has a number of drawbacks. In particular, for some parameters values there is a steady oscillatory mode in the system, which negatively affects the quality of service (QoS) indicators (see Jenkins (2013); Ren et al (2005); Lautenschlaeger and Francini (2015)). Unfortunately there are no clear selection criteria for RED parameters values, at which the system does not enter in self-oscillating mode.…”

Section: Red Adaptive Congestion Control Mechanismmentioning

confidence: 99%

See 1 more Smart Citation

Software Package For The Active Queue Management Module Model Verification

Velieva¹,

Korolkova²,

Gevorkyan³

et al. 2018

ECMS 2018 Proceedings Edited by Lars Nolle, Alexandra Burger, Christoph Tholen, Jens Werner, Jens Wellhausen

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Self-oscillation modes in control systems of data transmission networks negatively affect the characteristics of these networks. To investigate the self-oscillation mode for systems with a control module, the analytical model of the active queue management module was developed. The problem of verification of the obtained theoretical results arises in the study. Previously, a software system was developed for software emulation of the router. However, its use has caused some difficulties. Alternatively, the simulation model of network with active queue management module was developed. The paper describes a software package for verifying theoretical calculations based on the NS-2 simulation system. For illustration, a numerical example is given.

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Section: Red Adaptive Congestion Control Mechanismmentioning

confidence: 99%

“…The problem of the occurrence of self-oscillatory regime in systems with control is considered (see Lautenschlaeger and Francini (2015)). In particular, the active queue management modules with RED-like algorithms were studied.…”

Section: Introductionmentioning

confidence: 99%

Software Package For The Active Queue Management Module Model Verification

Velieva¹,

Korolkova²,

Gevorkyan³

et al. 2018

ECMS 2018 Proceedings Edited by Lars Nolle, Alexandra Burger, Christoph Tholen, Jens Werner, Jens Wellhausen

View full text Add to dashboard Cite

show abstract

“…In addition, it imposes virtually no restrictions on the researcher. As a result, researchers are constantly creating new modifications of this algorithm (see Floyd and Jacobson (1993);Feng et al (2015); Lautenschlaeger and Francini (2015); Karmeshu et al (2016)).…”

Section: Red Adaptive Congestion Control Mechanismmentioning

confidence: 99%

“…As the implementation of the system with a threshold control we investigated the RED (seeFloyd and Jacobson (1993); Feng et al (2015); Lautenschlaeger and Francini (2015); Karmeshu et al (2016)) active traffic management unit for the TCP protocol. During simulation of TCP protocol and RED mechanism the serious problems arised.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Simulation Of Active Traffic Management

Korolkova¹,

Velieva²,

Abaev³

et al. 2016

ECMS 2016 Proceedings Edited by Thorsten Claus, Frank Herrmann, Michael Manitz, Oliver Rose

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KEYWORDSHybrid modeling, fluid model, active queue management, random early detection, Modelica ABSTRACTFor the study and verification of our mathematical model of RED-like active traffic management module a discrete simulation model and a continuous analytical model were developed. However, for various reasons, these implementations are not entirely satisfactory. It is necessary to develop a more adequate simulation model, possibly using a different modeling paradigm. In order to modeling of the TCP source, the RED control module, and the process of their interaction it is proposed to use a hybrid (continuous-discrete) approach. For computer implementation of the model the physical modeling language Modelica is used. Because the language Modelica has multiple implementations we have selected the OpenModelica compiler. The hybrid approach allows us to take into account the transitions between different states in the continuous model of the TCP protocol. The hybrid approach simplified the consideration of the model due to the conversion of a differential inclusions into a set of differential equations with discrete transitions. The considered approach allowed to obtain a simple simulation model of interaction between RED module and TCP source. This model has great potential for expansion. It is possible to implement different types of TCP and RED. Furthermore, it is possible to use a hybrid approach not only for the simulation but also for analytical modeling.

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“…This phenomenon is called global synchronization, and this greatly reduces the communication efficiency, sometimes halting the application services provided over the network [6], [7]. Because of this fact, many studies have been conducted on the efficient method for avoiding congestion at the routers [8].…”

Section: Introductionmentioning

confidence: 99%

Active Queue Management Supporting TCP Flows Using Disturbance Observer and Smith Predictor

et al. 2020

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Active queue management (AQM) is a technique to avoid serious congestion of the transmission control protocol (TCP) flows at a router. AQM based on control theory, which utilizes congestion controllers such as proportional-derivative (PD) controller or proportional-integral-derivative (PID) controller, has been previously proposed. In addition, disturbance observer (DOB) has been utilized to compensate for modeling error of a TCP/AQM congestion control system. However, the DOB-based controllers cannot cope with a large time delay in TCP/AQM networks. Although one of the effective time delay compensators is Smith predictor (SP), the implementation of the DOB and SP in an integrated manner has not been accomplished, because of saturation due to the input limit of packet drop probability. In this paper, a novel TCP/AQM congestion control system with the DOB and SP considering the saturation function is proposed to compensate for the modeling error and time delay simultaneously. Simulation results show that the proposed controller provides better throughput and goodput than conventional controllers. One of the simulations assume that the propagation delay and bottleneck link capacity are set to 100 ms and 100 Mbps, respectively. Under this assumption, it is confirmed that the proposed controller achieves a goodput of 99.55 Mbps whereas the classical PID controller and PD controller with DOB achieve 99.23 Mbps and 99.24 Mbps, respectively. INDEX TERMS Active queue management (AQM), control theory, disturbance observer (DOB), quality of services (QoS), Smith predictor (SP), time delay, transmission control protocol (TCP).

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Global synchronization protection for bandwidth sharing TCP flows in high-speed links

Cited by 14 publications

References 19 publications

Software Package For The Active Queue Management Module Model Verification

Software Package For The Active Queue Management Module Model Verification

Hybrid Simulation Of Active Traffic Management

Active Queue Management Supporting TCP Flows Using Disturbance Observer and Smith Predictor

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