scholarly journals Prioritized Retransmission: A TCP Flow Control Mechanism

2019 ◽  
Vol 8 (4) ◽  
pp. 1680-1686 ◽  
Keyword(s):  
Flow Control ◽  
Traffic Control ◽  
High Speed ◽  
Control Mechanism ◽  
Communication Link ◽  
Control Mechanisms ◽  
Internet Communication ◽  
Buffer Overflows ◽  
Transmission Control Protocols ◽  
Retransmission Mechanism

Now-a-days, efforts have been made in the research of transmission control protocols to improve the performance of the flow control mechanism. Internet communication and services daily increase the variety and quantity of their capacity and needs. Therefore the flow control mechanism will have to consider valuable for traffic control, especially on high-speed networks. Initially there are some challenges, for instance, loss of packet, processing capacity, performance, buffer overflows and deadlocks with which daily traffic is confronted. This paper analyzes and reviewed the strengths and weaknesses of the different flow control mechanisms used in TCP. To overcome the weaknesses of these flow controls, we suggest a priority retransmission mechanism. Here we have priority on the Negative Acknowledgment (NACK), we resend the package on the basis of the minimum sequence number of the NACK. In buffer of priority retransmission Automatic Repeat request (ARQ) mechanism, the packet is released to the communication link in a First in First out (FIFO) manner. That is why the priority retransmission ARQ gives the optimum performance

Exploratory Studies on the Control of High-Speed Flows With Magnetogasdynamics

2002 ◽  
Author(s):  
Datta V. Gaitonde
Keyword(s):  
Flow Control ◽  
High Speed ◽  
Three Dimensional ◽  
Experimental Investigations ◽  
Control Mechanisms ◽  
Ground Testing ◽  
Simulation Efficiency ◽  
The Status ◽  
Physical Phenomena ◽  
Insight Into

Magnetogasdynamics (MGD) has the potential to lift many of the constraints presently inhibiting sustained hypersonic flight and affordable access to space. Given the difficulty of ground-testing under the expected harsh conditions, numerical methods can provide insight into the physical phenomena, and thus complement experimental investigations in the development of future concepts. This paper describes the status of an effort to develop a high-fidelity, fully three-dimensional method to explore MGD flow control in complex configurations. The theoretical model includes several non-ideal effects and takes recourse to a blend of first principles and phenomenological approaches to enhance simulation efficiency. Boundary conditions are summarized and sample verification exercises are presented. Exploratory calculations on a reentry vehicle and flow-through scramjet flowpath with MGD-bypass demonstrate the versatility of the approach and yield insight into dominant flow control mechanisms.

Flow Control Research between ForCES Channels

2013 ◽  
Vol 281 ◽  
pp. 134-140
Author(s):  
Huan Huan Song ◽  
Zhu Ge Bin ◽  
Cheng Yu ◽  
Wei Ming Wang
Keyword(s):  
Flow Control ◽  
Traffic Control ◽  
Control Mechanism ◽  
Experimental Results ◽  
Available Bandwidth ◽  
Control Research

In order to enhance the performance of ForCES network fully, and ensure the security and accuracy of communication between Control Elements (CEs) and Forwarding Elements (FEs), we designed Prediction-based Traffic Control and Configuration (PTCC) to reduce the likelihood, severity and duration of congestion. Through predicting the average reaching rate of the news package in the following time to control well the flow of every ForCES channel, and distribute available bandwidth for every ForCES channel according to news throughput reasonably and instantaneously. The experimental results validated the validity of this flow control mechanism.

Comparative study of two flow control mechanisms in high speed networks

2001 ◽  
Vol 16 (5) ◽  
pp. 484-489 ◽  
Author(s):  
Xiaolin Zhang ◽  
Haining Du ◽  
Jieyi Wu ◽  
Sabing Zhang ◽  
Xiang Fei
Keyword(s):  
Comparative Study ◽  
Flow Control ◽  
High Speed ◽  
Control Mechanisms ◽  
High Speed Networks

Analysis of Inter-Satellite Optical Wireless Communication System

2017 ◽  
Vol 7 (10) ◽  
pp. 10
Author(s):  
Rajbir Singh
Keyword(s):  
Wireless Communication ◽  
Optical Networks ◽  
Data Transmission ◽  
High Speed ◽  
Open Space ◽  
Communication Link ◽  
Optical Wireless Communication ◽  
Optical Wireless ◽  
High Speed Data ◽  
Speed Data Transmission

Optical networks are bandwidth efficient networks are used for long haul communication providing seamless data transfer. For high speed data transmission in open space between different satellites, Inter-satellite Optical wireless communication (IsOWC) is widely used .In this paper we have evaluated the performance of IsOWC communication link for high speed data transmission .The performance of the system is evaluated on the basis of qualitative parameters such as Q-factor and BER using optisystem simulator.

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