Enhanced fair earliest due date first scheduling strategy for multimedia applications in LTE downlink framework

Elhadad, Mohamad I.; El‐Shafai, Walid; El‐Rabaie, El‐Sayed M.; Abd‐Elnaby, Mohammed; El‐Samie, Fathi E. Abd

doi:10.1002/dac.4190

Cited by 6 publications

(4 citation statements)

References 37 publications

(57 reference statements)

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“…The authors in Reference 29 introduce an enhanced fair earliest due date first scheduler for multimedia applications in 4G LTE cellular systems. The proposed scheduler provides a predefined level of quality‐of‐service by guaranteeing a specific delay threshold for delay‐sensitive applications.…”

Section: Related Workmentioning

confidence: 99%

Jitter‐sensitive data communication in emerging wireless networks

Sheikh

2023

Trans Emerging Tel Tech

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Jitter and time-sensitive communications (TSC) will play an important role as part of the emerging wireless networks such as fifth-generation (5G) and sixth-generation (6G) cellular networks to enable applications including vehicle-to-everything (V2X), real-time audio/video, real-time industrial automation and control, and synchronized collaboration. TSC is characterized by stringent latency, jitter, and reliability requirements. This paper considers the problem of scheduling time-sensitive data packets with stringent playout deadlines over a downlink multiple-input multiple-output (MIMO) channel, as part of the emerging wireless networks, to minimize the average jitter of a data session. Even though extensive research has been performed on MIMO technology, jitter and time-sensitive data communication over a MIMO channel remains an under-studied problem. In the proposed model, early or late arrival of the packets with respect to their playout deadlines incurs an early-or late-arrival penalty, respectively. The proposed scheduling problem is proven to be NP-hard and three computationally-efficient scheduling heuristics are developed with varying performance and computational tradeoffs. These heuristics make packet scheduling decisions over the MIMO subchannels with the objective of minimizing the average jitter value of the data session. While making scheduling decisions, these heuristics intelligently take into consideration the playout deadlines and size of the packets, the time-varying channel conditions, and the cost of the early or late arrival of the packets. The performance of these heuristics is evaluated from a design perspective through extensive simulations. The simulation results provide key insights into the relative performance tradeoffs among the three heuristics as a function of the various system parameters. This information could be utilized in intelligently allocating system resources to obtain the desired optimal system performance.

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Section: Related Workmentioning

confidence: 99%

Jitter‐sensitive data communication in emerging wireless networks

Sheikh

2023

Trans Emerging Tel Tech

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“…The experiment used a line-of-sight (LOS) connection with a carrier frequency of 2.6 GHz to simulate vehicular LTE (LTE-V). In [38] the authors used an enhanced fair earliest due date first scheduling method for multimedia content in the LTE downlink architecture. A unique scheduler is introduced that enables LTE cellular networks to fulfill a QoS by ensuring a certain delay threshold for delay-sensitive services.…”

Section: Related Workmentioning

confidence: 99%

Novel Channel/QoS Aware Downlink Scheduler for Next-Generation Cellular Networks

Taha¹,

Hacı²,

Serener³

2022

Electronics

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Downlink schedulers play a vital part in the current and next-generation wireless networks. The next generation downlink scheduler should satisfy the demand for different requirements, such as dealing with ultra-dense networks and the need to run real-time (RT) and non-real-time (nRT) applications, with a high quality of service (QoS). Many researchers have developed various schedulers for these, but none have introduced one scheduler to target them all. This paper introduces a novel channel/QoS aware downlink scheduler algorithm, called Advanced Fair Throughput Optimized Scheduler (AFTOS), for ultra-dense networks. AFTOS is a multi-QoS scheduler that aims to maximize system spectrum efficiency and user throughput with enhanced fairness, delay, and packet loss ratio (PLR). It is capable of handling RT and nRT traffic. We developed two new policies, called Adjusted Largest Weighted Delay First (ALWDF) and Fair Throughput Optimized Scheduler (FTOS), for RT and nRT traffic. Then, we joint them to introduce our novel downlink scheduler Advanced Fair Throughput Optimized Scheduler (AFTOS). For evaluating the suggested algorithm, we undertook experiments to decide the ideal parameter value for the proposed approaches and compared the proposed solution to current best practices. The findings prove that the AFTOS algorithm can achieve its objectives, outperforming the alternative techniques.

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“…A widely known simulator, which is commonly used in much researches, [29][30][31][32][33][34][35][36][37][38][39][40] is utilized to evaluate the performance of the proposed queue-optimized scheduler. The simulator is known as an LTE simulator, 53 and it is utilized to compare the performance of the most recent and efficient schedulers with the proposed queue-optimized scheduler.…”

Section: Simulator Setupmentioning

confidence: 99%

“…The NRT traffic is scheduled according to the proportional fair (PF) scheduler. Another simple scheduling technique was proposed in Elhadad et al 30 The PRBs are distributed among active users based on three main parameters. These parameters are the channel quality for each user, the average data rate delivered for each user until the time of allocation of the current PRB, and the HoL packet delay.…”

Section: Literature Reviewmentioning

confidence: 99%

Optimized two‐level scheduler for video traffic in LTE downlink framework

Elhadad

El‐Shafai

El‐Rabaie

et al. 2021

Int J Communication

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The most challenging issue in long-term evolution (LTE) mobile networks is the design of an optimal scheduler. The main target of the LTE scheduling strategy is to guarantee a certain level of quality of service (QoS) in order to satisfy users' needs. In this work, a novel queue-optimized two-level scheduling strategy is introduced. The queue-optimized scheduler has the ability to support both real-time (RT) and non-RT (NRT) services in the LTE downlink framework. The first level of the proposed scheduler depends on an optimized queue length threshold that is dynamically adapted to adjust the assigned resources for the video traffic to maintain the throughput around its average value. The proposed scheduling strategy is utilized to efficiently enhance the radio resource allocation process for video traffic by minimizing the allocation of any excess unwanted resources, which consequently facilitates the support of more video connections and enhances the overall network spectral efficiency. The distribution of the resources among users for RT and NRT applications is actually performed at the second level of the scheduling process. The physical resource blocks (PRBs) are assigned according to the enhanced earliest due date first (EEDDF) mechanism. The proposed scheduling strategy prioritizes users according to their service requirements, to improve the QoS provision. The proposed scheduler maximizes the video applications throughput, and generally, minimizes the packet delay and the packet loss rate (PLR) for RT applications.

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Enhanced fair earliest due date first scheduling strategy for multimedia applications in LTE downlink framework

Cited by 6 publications

References 37 publications

Jitter‐sensitive data communication in emerging wireless networks

Jitter‐sensitive data communication in emerging wireless networks

Novel Channel/QoS Aware Downlink Scheduler for Next-Generation Cellular Networks

Optimized two‐level scheduler for video traffic in LTE downlink framework

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