Performance Evaluation of TCP Vegas over TCP Reno and TCP NewReno over TCP Reno

Chowdhury, Tanjia; Alam, Mohammad Jahangir

doi:10.30630/joiv.3.3.270

Cited by 8 publications

(8 citation statements)

References 7 publications

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“…Where TCP Vegas provided a fair service compared with Reno [11]. While in literature [12] authors focused on the efficiency of the actions between TCP Reno and TCP Vegas when they share the same router bottleneck. Where a drop tail and RED algorithm is used on the router and it has been found that the TCP Vegas does not have better droptail efficiency due to the difference in router buffer occupation.…”

Section: Introductionmentioning

confidence: 99%

An Improved Algorithm for Congestion Management in Network Based on Jitter and Time to Live Mechanisms

Yousif

Al-Haboobi²

2020

NJES

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As internet network developed rapidly in the past ten years, and its operating environment is constantly changing along with the development of computer and communication technology, the congestion problem has become more and more serious. Since TCP is the primary protocol for transport layers on the internet, the data transmitted via the transport protocol utilizes Vegas Transmission Control Protocol (TCP) as the congestion control algorithm, where it uses increasing in delay round trip time (RTT) as a signal of network congestion. However, this congestion control algorithm will attempt to fill network buffer, which causes an increase in (RTT) determined by Vegas, thereby reducing the congestion window, and making the transmission slower, Therefore Vegas has not been widely adopted on the Internet. In this paper, an improved algorithm called TCP Vegas-A is proposed consist of two parts: the first part is sending the congestion window used by the algorithm for congestion avoidance along with the TTL (Time To Live) mechanism that limits the lifetime of a packet in the network. While the second part of the algorithm is the priority-based packet sending strategy, and jitter is used as a congestion signal indication. The combination of the two is expected to improve the efficiency of congestion detection. A mathematical model is established, and the analysis of the model shows that the algorithm has better effects on controlling congestion and improving the network throughput, decreasing packet loss rate and increasing network utilization, the simulation is done using NS-2 network simulation platform environment and the results support the theoretical analysis.

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Section: Introductionmentioning

confidence: 99%

An Improved Algorithm for Congestion Management in Network Based on Jitter and Time to Live Mechanisms

Yousif

Al-Haboobi²

2020

NJES

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“…Chowdhury et al [5] e Mohammad et al [7] apresentam um comparativo entre os desempenho do controle de congestionamento das principais versões do protocolo TCP.…”

Section: Trabalhos Relacionadosunclassified

“…A versão TCP Vegas apresenta uma abordagem preditiva, pois utiliza o tempo de ciclo de cada segmento como referencia para prever congestionamentos e antecipar-se a perda de pacotes. Quando o RTT indica uma tendência ao congestionamento, a quantidade de segmentos transmitidos e reduzida a fim de evitar a ocorrência da perda [5], [6].…”

Section: Introductionunclassified

Controle de Congestionamento TCP baseado na Previsão de Perda de Pacotes usando Média Móvel Ponderada/ TCP Congestion Control based on Packet Loss Prediction using Weighted Moving Average

Silva¹,

Albuquerque²,

Lima³

2021

BJDV

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RESUMOA Internet é uma das ferramentas mais importantes do mundo moderno e é amplamente utilizada como um canal de comunicação. Entre a família de protocolos utilizados pela Internet, o TCP (Transmission Control Protocol) tem a função de proporcionar confiabilidade, pois tem a responsabilidade de gerenciar a entrega dos segmentos de informação e, se necessário, reenviar os segmentos perdidos. Um dos principais mecanismos do TCP é o controle de congestionamento, que tem a função de ajustar as rajadas de segmentos a serem enviados de acordo com o nível de disponibilidade da rede. Cada versão do TCP, por exemplo, Reno, New Reno ou Vegas, apresenta sua abordagem particular ao controle de congestionamento. Este trabalho propõe um novo algoritmo de controle de congestionamento para o TCP, baseado na previsão de perda de pacotes, usando a Média Móvel Ponderada. O algoritmo proposto foi compilado dentro do código fonte do NS2 Simulator. Três diferentes cenários de rede foram realizados a fim de verificar o funcionamento do algoritmo proposto e compará-lo com as versões clássicas

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“…We use the result of dividing the average RTT by the estimated network diameter to estimate the average link delay of AS2. Based on the performance detection information obtained from SDN gateways, the SDN controller can obtain the average link available bandwidth using bandwidth estimation algorithms, such as TCP Westwood (Haveliwala et al, 2020) and TCP Vegas (Chowdhury and Alam, 2019). This SDN gateway-based architecture can not only avoid the high cost of making subnets SDN-enable but also avoid the long convergence time collecting the complete network information.…”

Section: Control Plane Designmentioning

confidence: 99%

A Software-Defined Architecture for Integrating Heterogeneous Space and Ground Networks

Sun

Liu

et al. 2021

Front. Comms. Net.

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In recent years, various types of heterogeneous networks develop rapidly. The integration of multi-type networks have great values in the fields of military and civil applications. The challenges of integrating multiple networks covers the heterogeneity of multiple aspects, e.g., the architectures, protocols, and switching mechanisms. The existing interconnection technologies of heterogeneous networks mainly include traditional static protocol gateways, traditional software-defined network (SDN) gateways, and improved SDN gateways. However, traditional static protocol gateways need to be customed in advance according to specific scenarios, which leads to the lack of flexibility. Traditional SDN gateways are often used for connecting homogeneous networks. The existing improved SDN gateways often neglect the efficiency and cost of integrating heterogeneous networks. In our work, we propose a software-defined architecture for integrating heterogeneous space and ground networks (SD-SGN). First, we propose an integrated architecture that utilizes SDN gateways and southbound interfaces to shield subnets’ heterogeneity ranging from the physical layer to the network layer. Second, we use the multi-class multi-level flow tables to provide a flexible data plane. Third, we offer an efficient control plane based on the subnet abstraction and global collaborative optimization. Fourth, we give a further discussion on customizing a complete network service based on the proposed SDN architecture. Last, extensive simulations demonstrate that this SDN architecture is effective and performs well in terms of costs, efficiency, and performance.

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Performance Evaluation of TCP Vegas over TCP Reno and TCP NewReno over TCP Reno

Cited by 8 publications

References 7 publications

An Improved Algorithm for Congestion Management in Network Based on Jitter and Time to Live Mechanisms

An Improved Algorithm for Congestion Management in Network Based on Jitter and Time to Live Mechanisms

Controle de Congestionamento TCP baseado na Previsão de Perda de Pacotes usando Média Móvel Ponderada/ TCP Congestion Control based on Packet Loss Prediction using Weighted Moving Average

A Software-Defined Architecture for Integrating Heterogeneous Space and Ground Networks

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