International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 04 | Apr 2023
p-ISSN: 2395-0072
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ANALYSIS AND EXPERIMENTAL EVALUATION OF THE TRANSMISSION CONTROL PROTOCOL CONGESTION CONTROL ALGORITHMS IN A WIRELESS MULTIHOP ENVIRONMENT RAJAN S1, NANDHINI T2, RAMKUMAR D3, PUVIYA M4, KAVYA R5 1Professor, Dept. of ECE, Velalar College of Engineering and Technology, Thindal, Erode, Tamilnadu, India
. 2,3,4,5 B.E Final Year Students, Dept. of ECE, Velalar College of Engineering and Technology, Thindal, Erode, Tamilnadu, India. ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - In today’s world wireless network plays a
[2]. It provides a strong foundation for creating robust TCP that can adapt to highly dynamic multi-hop wireless environment [5]. The simulation work is done on network simulator 2. [3]
major important role because of their characteristics such as increased mobility, installation speed, reduced cost of ownership, and wider reach of the network. Hence the number of wireless network user increases which results in high internet traffic. In order to avoid this kind of traffic on the internet, Transmission control protocol (TCP) from the transport layer of network architecture is used. TCP provides various congestion control algorithms(TCP variants). Each of them has different features but their main objective is to provide maximum throughput. The purpose of this paper is to analyze and experimentally evaluate TCP variants such as TCP cubic, TCP hybla, TCP scalable, TCP Vegas, and TCP Westwood for their throughput versus the number of nodes. Therefore this analysis of TCP variants provides a solid foundation for a robust TCP that can adapt to a highly dynamic multi-hop wireless environment.
2. PROPOSED SYSTEM The proposed system's flow diagram is shown in Figure 1 below
Key Words: Transmission Control Protocol (TCP), congestion control, TCP Cubic, TCP Hybla, TCP Scalable, TCP Vegas and TCP Westwood.
1. INTRODUCTION Now days, demand for wireless communication system is increasing. But it becomes difficult to maintain the data rate because of multiple competing senders [14]. It may lead to degradation of throughput in case of congestion which is highly possible in wireless network. [16] TCP congestion control algorithm from the transport layer [4] is used to maintain high network utilization by preventing network congestion. It is done by monitoring the network for congestion and adjusts the data rate accordingly. When TCP detects congestion, it reduces transmission rate to prevent further congestion. Likewise increases transmission rate when congestion subsides. There are various kinds of TCP congestion control algorithms [1] have been evaluated which is named as TCP variants.
Figure 1: Flow Diagram of Proposed System In this proposed system, analysis and experimental evaluation of TCP variants [10] such as TCP cubic, TCP hybla, TCP scalable, TCP vegas and TCP westwood is presented. These variants are used to control congestion in network traffic for wireless environment. All these TCP variants can be differentiated using the metrics such as throughput versus number of nodes. From this comparative analysis [13] we can understand their performance for multiple nodes in wireless environment. We also examine their better performance for different
The performance of some of the selected TCP variants such as TCP cubic, TCP hybla, TCP scalable, TCP vegas and TCP westwood are analyzed and experimentally evaluated
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