scholarly journals Implementation of packet scheduling algorithms in LTE-Sim

2015 ◽  
Vol 14 (8) ◽  
pp. 6030-6040
Author(s):  
Abdallh F. Abdallh ◽  
Naif Alharbi ◽  
Kumbesan Sandrasegara
Keyword(s):  
Real Time ◽  
Packet Scheduling ◽  
Radio Resource Management ◽  
Performance Testing ◽  
Scheduling Algorithms ◽  
Round Robin ◽  
Radio Resource ◽  
Time Service ◽  
Downlink Packet Scheduling ◽  
Service Data

In this research paper we have implemented downlink packet scheduling algorithms in LTE-Sim simulation for LTE cellular networks. The implementation includes adding two packet scheduling algorithms (Round Robin and MaxRate). The performance of these algorithms is tested for various types of real time service (video) and non real time service(data) for fixed and mobile users at various speeds 3, and 120Km/h in LTE-Sim simulator. The simulation was setup with varying number of users 120 in fixed boundedregions of 1 km radius.The goal of this project is to study the simulation of Radio Resource Management (RRM) in 4G networks using LTE-Sim. In particular, it focuses on the comprehensive performance testing of packet scheduling algorithms (such as Max Rate, Round Robin, PF, MLWDF, EXP). The paper shows the results of implementing of these algorithms and testing their performance.

scholarly journals A New Downlink Scheduling Algorithm Proposed for Real Time Traffic in LTE System

2015 ◽  
Vol 61 (4) ◽  
pp. 409-414 ◽  
Author(s):  
Mohammed Mahfoudi ◽  
Moulhime El Bekkali ◽  
Abdellah Najd ◽  
M. El Ghazi ◽  
Said Mazer
Keyword(s):  
Real Time ◽  
Packet Scheduling ◽  
Radio Resource Management ◽  
Scheduling Algorithm ◽  
Packet Delay ◽  
Scheduling Algorithms ◽  
Proportional Fairness ◽  
Downlink Scheduling ◽  
High Data ◽  
Real Time Traffic

Abstract The Third Generation Partnership Project (3GPP) has developed a new cellular standard based packet switching allowing high data rate, 100 Mbps in Downlink and 50 Mbps in Uplink, and having the flexibility to be used in different bandwidths ranging from 1.4 MHz up to 20 MHz, this standard is termed LTE (Long Term Evolution). Radio Resource Management (RRM) procedure is one of the key design roles for improving LTE system performance, Packet scheduling is one of the RRM mechanisms and it is responsible for radio resources allocation, However, Scheduling algorithms are not defined in 3GPP specifications. Therefore, it gets a track interests for researchers. In this paper we proposed a new LTE scheduling algorithm and we compared its performances with other well known algorithms such as Proportional Fairness (PF), Modified Largest Weighted Delay First (MLWDF), and Exponential Proportional Fairness (EXPPF) in downlink direction. The simulation results shows that the proposed scheduler satisfies the quality of service (QoS) requirements of the real-time traffic in terms of packet loss ratio (PLR), average throughput and packet delay. This paper also discusses the key issues of scheduling algorithms to be considered in future traffic requirements.

MAC Optimization Based on the Radio Resource Allocation in a 5G eMBB System Simulated in the MmWave Model

2021 ◽  
Vol 10 (2) ◽  
pp. 32-54
Author(s):  
Ismail Angri ◽  
Abdellah Najid ◽  
Mohammed Mahfoudi
Keyword(s):  
Packet Scheduling ◽  
Radio Resource Management ◽  
Data Extraction ◽  
System Throughput ◽  
Multiple Use ◽  
Mobile Nodes ◽  
Radio Resource ◽  
New Radio ◽  
Machine Type Communications ◽  
Downlink Packet Scheduling

5G NR (new radio) systems support multiple use cases, namely enhanced mobile broadband (eMBB), ultra-reliable and low latency communications (URLLC), and massive machine-type communications (mMTC), to meet the needs of different types of applications. The multi users-downlink packet scheduling (MU-DLPS) is used for the 5G NR radio resource management (RRM). In this paper, the authors show that the radio resource scheduling algorithms, which have been applied to 4G, are also efficient and can be used in 5G networks. In this objective, the authors simulated scheduling schemes in a 5G eMBB environment. The algorithms were developed in C++ for the first time and were simulated using the mmWave model of the NS-3 simulator. Mobility scenarios with fixed and mobile nodes have been implemented. The comparison was made using python programs, newly and specifically developed for the data extraction. The results show that five strategies achieve remarkable values in terms of system throughput and downlink latency.

Cross-Layer Radio Resource Management Protocols for QoS Provisioning in Multimedia Wireless Networks

2010 ◽  
pp. 463-486
Author(s):  
Tarek Bejaoui ◽  
Nidal Nasser
Keyword(s):  
Wireless Networks ◽  
Real Time ◽  
Packet Scheduling ◽  
Radio Resource Management ◽  
Cross Layer ◽  
Cross Layer Design ◽  
Qos Provisioning ◽  
Multimedia Wireless Networks ◽  
The Cross ◽  
Layered Design

This chapter introduces the cross layer design for resource allocation over multimedia wireless networks. Conventional layered packet scheduling and call admission control schemes are presented and a number of cross-layered protocols that are recently proposed are investigated. The chapter highlights the QoS improvement and the performance gain obtained while considering the interlayer dependencies concept for various real-time and non-real-time applications. The authors hope that this chapter will assist in the understanding of the cross layering and its enhancement of the layered design for QoS provisioning in future multimedia wireless networks.

Cross-Layer Radio Resource Management Protocols for QoS Provisioning in Multimedia Wireless Networks

2010 ◽  
pp. 417-441
Author(s):  
Tarek Bejaoui ◽  
Nidal Nasser
Keyword(s):  
Wireless Networks ◽  
Real Time ◽  
Packet Scheduling ◽  
Radio Resource Management ◽  
Cross Layer ◽  
Cross Layer Design ◽  
Qos Provisioning ◽  
Multimedia Wireless Networks ◽  
The Cross ◽  
Layered Design

This chapter introduces the cross layer design for resource allocation over multimedia wireless networks. Conventional layered packet scheduling and call admission control schemes are presented and a number of cross-layered protocols that are recently proposed are investigated. The chapter highlights the QoS improvement and the performance gain obtained while considering the interlayer dependencies concept for various real-time and non-real-time applications. The authors hope that this chapter will assist in the understanding of the cross layering and its enhancement of the layered design for QoS provisioning in future multimedia wireless networks.

scholarly journals Priority based round robin (PBRR) CPU scheduling algorithm

2019 ◽  
Vol 9 (1) ◽  
pp. 190
Author(s):  
Sonia Zouaoui ◽  
Lotfi Boussaid ◽  
Abdellatif Mtibaa
Keyword(s):  
Operating System ◽  
Real Time ◽  
Waiting Time ◽  
Scheduling Algorithm ◽  
Scheduling Algorithms ◽  
Turnaround Time ◽  
Round Robin ◽  
New Approach ◽  
Real Time Operating System ◽  
Cpu Scheduling

<p>This paper introduce a new approach for scheduling algorithms which aim to improve real time operating system CPU performance. This new approach of CPU Scheduling algorithm is based on the combination of round-robin (RR) and Priority based (PB) scheduling algorithms. This solution maintains the advantage of simple round robin scheduling algorithm, which is reducing starvation and integrates the advantage of priority scheduling. The proposed algorithm implements the concept of time quantum and assigning as well priority index to the processes. Existing round robin CPU scheduling algorithm cannot be dedicated to real time operating system due to their large waiting time, large response time, large turnaround time and less throughput. This new algorithm improves all the drawbacks of round robin CPU scheduling algorithm. In addition, this paper presents analysis comparing proposed algorithm with existing round robin scheduling algorithm focusing on average waiting time and average turnaround time.</p>

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