A review and prospect on the network congestion control

Tian, Yantao; Xiao, Pingping

doi:10.1016/s1005-8885(09)60601-4

Cited by 4 publications

(5 citation statements)

References 34 publications

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“…Neighbor load routing algorithm [22], which is considered as a typical local routing algorithm, transmits the data to the neighbor node based on the local minimum cost or a certain probability. The network congestion is equivalent to the series failure [23] of the complex networks; based on this, J. Wang and L. Wang [19] designed a distributed multirouter algorithm to reduce the congestion. The routing algorithm reduces the packet transmission delay as far as possible to improve the throughput of the network, so as to improve the overall performance of the network.…”

Section: Related Workmentioning

confidence: 99%

Consensus Congestion Control in Multirouter Networks Based on Multiagent System

Yang

2017

Complexity

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Due to the unbalance distribution of network resources and network traffic, congestion is an inherent property of the Internet. The consensus congestion controller based on the multiagent system theory is designed for the multirouter topology, which improves the performance of the whole networks. Based on the analysis of the causes of congestion, the topology of multirouter networks is modeled based on the graph theory and the network congestion control problem is described as a consensus problem in multiagent systems. Simulation results by MATLAB and Ns2 indicate that the proposed algorithm maintains a high throughput and a low packet drip ratio and improves the quality of the service in the complex network environment.

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Section: Related Workmentioning

confidence: 99%

Consensus Congestion Control in Multirouter Networks Based on Multiagent System

Yang

2017

Complexity

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“…1(a), structural form of main servo motor-worm and worm gear commutation reducer-transmission screw-linkage force increasing mechanism is used as main transmission system. In Siemens configuration software, main servo motor can be configured as linear axis by setting reduction ratio of worm and worm gear commutation reducer, diameter and lead of transmission screw such as mechanical system parameters, so angular displacement, angular velocity, angular acceleration of main servo motor are directly transformed into displacement, velocity, acceleration of nut [10,11]. Because linkage force increasing mechanism belongs to nonlinear transmission mechanism [12,13], the relationships of the velocity and displacement between nut and slide need to be researched.…”

Section: System Descriptionmentioning

confidence: 99%

“…The relationships of the velocity between nut and slide can also be obtained by taking the derivative of angle θ. However, manufacturing deviation is inevitable in actual machining, so relationships are corrected by measured data using Trace tool in Siemens Scout development software [11]. As shown in Fig.…”

Section: System Descriptionmentioning

confidence: 99%

See 1 more Smart Citation

Research on Velocity-Displacement Curve for Mechanical Linkage Servo Press

Zhang

Shi

et al. 2013

AMM

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With main transmission system structural form of main servo motor-worm and worm gear commutation reducer-transmission screw-linkage force increasing mechanism, mathematical model of linkage force increasing mechanism is established to obtain the relationships of the velocity and displacement between nut and slide. Velocity and displacement of feature points of slide on the velocity-displacement curve inputted by user transform into which of nut by binary search algorithm and linear interpolation calculation. The feature points of nut transform into the velocity and displacement arrays of points based on S-curve, and then the arrays of points transfer through UDP protocol to lower computer. After the linear fine interpolation by Siemens Simotion D425 motion controller, slide moves according to the setting velocity-displacement curve. The experimental results show that slide moves smoothly, which meets specific technology requirements. The achievements have been successfully applied to a self-developed 2000KN mechanical linkage servo press in a production line of hot forming technology for more than one year, which extends the technology application scope of traditional mechanical press, and improves product quality.

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“…To ensure the data information is the latest, the monitoring system communicates with the hardware system of the power system of mine emergency system through RS232.The hardware system sends the data information listed above to the RS232 interface of PC by RS485-RS232 module [5] . The monitoring system gets the data information periodically in need.…”

Section: Data Collection and Update Rulementioning

confidence: 99%