Vehicular Networks Performance Evaluation Based on Downlink Scheduling Algorithms for High-Speed Long Term Evolution – Vehicle

Hussain Mahdi,Baidaa Al-Bander,Mohammed Hasan Alwan,Mohammed Salah Abood,Mustafa Maad Hamdi

doi:10.3991/ijim.v15i21.22475

Abstract

Moving is the key to modern life. Most things are in moving such as vehicles and user mobiles, so the need for high-speed wireless networks to serve the high demand of the wireless application becomes essential for any wireless network design. The use of web browsing, online gaming, and on-time data exchange like video calls as an example means that users need a high data rate and fewer error communication links. To satisfy this, increasing the bandwidth available for each network will enhance the throughput of the communication, but the bandwidth available is a limited resource which means that thinking about techniques to be used to increase the throughput of the network is very important. One of the techniques used is the spectrum sharing between the available networks, but the problem here is when there is no available channel to connect with. This encourages researchers to think about using scheduling as a technique to serve the high capacity on the network. Studying scheduling techniques depends on the Quality-of-Service (QoS) of the network, so the throughput performance is the metric of this paper. In this paper, an improved Best-CQI scheduling algorithm is proposed to enhance the throughput of the network. The proposed algorithm was compared with three user scheduling algorithms to evaluate the throughput performance which are Round Robin (RR), Proportional Fair (PF), and Best-CQI algorithms. The study is performed under Line-of-Sight (LoS) link at carrier frequency 2.6 GHz to satisfy the Vehicular Long Term Evolution (LTE-V) with the high-speed scenario. The simulation results show that the proposed algorithm outperforms the throughput performance of the other algorithms.

Highlights

In few years ago, the capacity of the need of wireless networks has been increased due to the increase of mobiles, tablets, mobile applications, and the use of Internet-ofThings (IoT) [1]
The performance evaluation is performed using three different user scheduling algorithms used in Long Term Evolution (LTE-V) networks which are Round Robin (RR), Proportional Fair (PF), and Best-CQI
The throughput performance is the simulation metric in this paper because it is important to enhance the throughput of the Long-Term Evolution (LTE)-V network to meet the high demand and high capacity of the network

Summary

Introduction

The capacity of the need of wireless networks has been increased due to the increase of mobiles, tablets, mobile applications, and the use of Internet-ofThings (IoT) [1]. The second solution is to use scheduling algorithms that are responsible to reduce the multipath effect and to elect the best QoS signal with best communication link to deal with [9] This process reduces the computational complexity needed for the multiplexing techniques and makes the use of spectrum available more efficiency [10]. The new question now is what the best QoS-aware scheduling algorithm which can be used in high-speed vehicular communication where high effect of Doppler shift appears, and high changeable channel conditions is introduced that affects the interference level in the network. This technique is a developing of the Best-CQI scheduling algorithm which is widely used in vehicular communication.

Literature review

Test: for each user

Conclusion