Experiments in fair scheduling in 4G WiMAX and LTE

Zubairi, Junaid Ahmed; Erdogan, E.S.; Reich, Shaun

doi:10.1109/hpcsim.2015.7237050

Cited by 10 publications

(4 citation statements)

References 5 publications

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“…The first scenario (I) considers connecting all the UABS to the CN through LTE-advanced technology using a 3.5 GHz channel with a 20 MHz bandwidth. A first in first out (FIFO) based algorithm for resource block (RB) allocation is implemented where user resources are assigned simultaneously based on the backhaul constraints [36]. The RB is the tiniest component of resources that can be allocated to devices in LTE.…”

Section: Methodsmentioning

confidence: 99%

Performance Evaluation of Direct-Link Backhaul for UAV-Aided Emergency Networks

Castellanos

Deruyck

Martens

et al. 2019

Sensors

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Today’s wireless networks provide us reliable connectivity. However, if a disaster occurs, the whole network could be out of service and people cannot communicate. Using a fast deployable temporally network by mounting small cell base stations on unmanned aerial vehicles (UAVs) could solve the problem. Yet, this raises several challenges. We propose a capacity-deployment tool to design the backhaul network for UAV-aided networks and to evaluate the performance of the backhaul network in a realistic scenario in the city center of Ghent, Belgium. This tool assigns simultaneously resources to the ground users—access network—and to the backhaul network, taking into consideration backhaul capacity and power restrictions. We compare three types of backhaul scenarios using a 3.5 GHz link, 3.5 GHz with carrier aggregation (CA) and the 60 GHz band, considering three different types of drones. The results showed that an optimal UAV flight height (80 m) could satisfy both access and backhaul networks; however, full coverage was difficult to achieve. Finally, we discuss the influence of the flight height and the number of requesting users concerning the network performance and propose an optimal configuration and new mechanisms to improve the network capacity, based on realistic restrictions.

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Section: Methodsmentioning

confidence: 99%

Performance Evaluation of Direct-Link Backhaul for UAV-Aided Emergency Networks

Castellanos

Deruyck

Martens

et al. 2019

Sensors

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“…c) Jitter: In VoIP technology, jitter refers to the delay in receiving voice data packets. This delay affects voice quality and data transmission [23]. d) Upload response time: Time elapsed between sending a file and receiving the response.…”

Section: Simulation Parametermentioning

confidence: 99%

Comparative performance analysis of different queuing techniques for campus area network

Indrajaya,

Fauzi,

Rahman

et al. 2023

IJEECS

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<span>A quality network infrastructure is a user demand for the increment of traffic nowadays. Due to data traffic congestion, a network’s service quality cannot fulfill the user demand, especially for streaming-type traffic. For this, an appropriate queuing method can be a convenient solution for network congestion at the time of picking traffic load. In this paper, a simulation was conducted using the OPNET application to examine the feasibility of three types of queuing methods, namely first in first out (FIFO), priority queuing (PQ), and weighted fair queuing (WFQ). During the simulation, several important parameters such as delay, throughput, and response time are considered as performance metrics and compared among four types of applications as file transfer protocol (FTP), hypertext transfer protocol (HTTP), voice over internet protocol (VoIP), and video conferencing. According to the result, it is observed that WFQ provides comparatively improved results than PQ and FIFO.</span>

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“…A comparative analysis on scheduling algorithms discussed in the work of Rehman and Shakir to signify the importance of high priority data traffic. A fair scheduling mechanism for WiMAX and LTE networks was examined in the work of Zubairi et al to offer fairness in bandwidth allocation.…”

Section: Related Workmentioning

confidence: 99%

Analyzing enhanced real‐time uplink scheduling algorithm in 3GPP LTE‐advanced networks using multimedia systems

Deebak

Ever

Al‐Turjman

2018

Trans Emerging Tel Tech

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Third Generation Partnership Project (3GPP) standardizes the Long‐Term Evolution (LTE) to improve the quality of service in modern communication systems using 3GPP LTE‐advanced (LTE‐A) networks. As this technology is converging with modern devices, efficient resource allocation schemes are essential for minimization of the communication delay for the sensitive real‐time devices. To achieve the demands of latest technologies, this paper proposes two novel mechanisms, enhanced real‐time polling system with continuous time–batch Markovian arrival process and proactive resource allocation framework. The objective of the former mechanism is to improvise the service connectivity between the multimedia devices in LTE‐A networks and the latter is to exploit the transmission bits in each user's buffer in addition to the state information of wireless channel. The proposed mechanisms consider the constraints enforced by 3GPP standard in terms of radio resource blocks allocation for LTE‐A networks. In addition, the proposed mechanisms use LTE‐A networks to investigate the Voice over LTE traffic in order to analyze various quality‐of‐service measures, namely, sum throughput, session setup delay, packet delivery ratio, resource utilization ratio, and throughput improvement via real‐time multimedia client‐server systems. The probing results show that the proposed algorithm is superior in comparison to other typical services of IEEE 802.16d/e–based systems as well as LTE‐A system with 7 orthogonal frequency‐division multiplexing symbols over a duration slot 0.5 ms. While the slotted duration is set to 5 ms, the proposed framework effectively utilizes the resource allocation cycle to support the uplink scheduling to outperform at least 38% better throughput performance in comparison with existing mechanisms.

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Experiments in fair scheduling in 4G WiMAX and LTE

Cited by 10 publications

References 5 publications

Performance Evaluation of Direct-Link Backhaul for UAV-Aided Emergency Networks

Performance Evaluation of Direct-Link Backhaul for UAV-Aided Emergency Networks

Comparative performance analysis of different queuing techniques for campus area network

Analyzing enhanced real‐time uplink scheduling algorithm in 3GPP LTE‐advanced networks using multimedia systems

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