Performance Evaluation of Selected E2E TCP Congestion Control Mechanism Over 4G Networks

Mohanad Al-Hasanat,Ali Alsbou,Abduallah Al-Hasanat,Saud Althunibat

doi:10.5121/ijwmn.2017.9605

Abstract

TCP is one of the main protocols that govern the Internet traffic nowadays. However, it suffers significant performance degradation over wireless links. Since wireless networks are leading the communication technologies recently, it is imperative to introduce effective solutions for the TCP congestion control mechanisms over such networks. In this research four End-to-End TCP implementations are discussed, they are TCP Westwood, Hybla, Highspeed, and NewReno. The performance of these variants is compared using LTE emulated environment in terms of throughput, delay, and fairness. Ns-3 simulator is used to simulate the LTE networks environment. The simulation results showed that TCP Highspeed achieves the best throughput results. Although TCP Westwood recorded the lowest latency values comparing to others, it behaved unfairly among different traffic flows. Moreover, TCP Hybla demonstrated the best fairness behaviour among other TCP variants.

Highlights

Nowadays, the Internet has reached many parts of the world, even most of the remotest places on the planet
Ns-3 simulator will be used to compare the performance of the selected Transmission Control Protocol (TCP) variants over an emulated Long Term Evolution (LTE) environment
Ns-3 simulator was used to collect and monitor the selected TCP behaviours over LTE emulated environment

Summary

Introduction

The Internet has reached many parts of the world, even most of the remotest places on the planet. People are connected through their smart devices most of the times. The extensive development of new communication technologies and the needs of these technologies is the motivation for a large spectrum of networking researchers who seek to enhance communication system’s hardware and software infrastructure [12]. Over the past two decades, spacious communications applications and services have been developed, especially in wireless communications. Long Term Evolution (LTE) mobile network, standardized by the 3GPP is one of the most recently used technology in current mobile communication systems. LTE mobile network aims to provide high spectral efficiency, high peak data rates, low latency, better coverage, and low operating cost [11]

Methods

Results

Conclusion