Recent Results on Proportional Fair Scheduling for mmWave-based Industrial Wireless Networks

Ma, Jiteng; Aijaz, Adnan; Beach, M.A.

doi:10.1109/vtc2020-fall49728.2020.9348753

Cited by 9 publications

(5 citation statements)

References 15 publications

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“…Only a few packet layer models are available for mmWave systems with blockage impairments [20], [21]. In [20], the human blockage is predicted by detecting changes in the received signal power when the blockage is about to occur.…”

Section: Related Workmentioning

confidence: 99%

“…The authors show that the performance gains of the proposed scheduler as compared to the conventional ones (e.g., proportional fair (PF) and max-min) increase when the arrival rate and duration of blockage are higher. The study in [21] proposes further modifications to the proportional fair scheduler that not only improve the priority of UEs in blockage conditions but also reduce the response time to any kind of fluctuations, primarily blockages. This improvement is achieved by introducing an exponential scaling that depends on the modulation and coding scheme (MCS) to the classification of UE weights [22].…”

Section: Related Workmentioning

confidence: 99%

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Packet Level Performance of 5G NR System Under Blockage and Micromobility Impairments

Khayrov,

Koucheryavy

2023

IEEE Access

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With the introduction of the Integrated Access and Backhaul (IAB) technology by 3GPP, the last mile in beyond 5G cellular systems will be characterized by multiple wireless backhaul links between the user equipment and base station. In such multi-hop configurations, packet latency becomes a dominant factor characterizing the quality of service (QoS) delivered to the users. At the same time, directional communications at millimeter wave (mmWave) frequencies are prone to frequent outages caused by blockage and micromobility leading to periods of silence and subsequent rate compensation. In this paper, we are interested in assessing the impact of mmWave propagation specifics on the delay and medium access control (MAC) buffer overflow performance at a 5G NR IAB network node. To this aim, we first propose a continuous-time Markov chain model for the bitrate provided by such a system that explicitly accounts for mmWave-specific propagation. Then, by formulating a queuing model of packet transmission, we characterize the mean packet delay experienced by a traffic source. Our results illustrate that the mean delay and MAC buffer overflow probability at the NR BS interface is a step function that is not strictly decreasing due to the packet encapsulation specifics of the modulation and coding (MCS) adaptation mechanism. Further, these metrics are non-negligible even for the system having a sufficient amount of resources. For IAB architecture, where the access link may not be available the the mean delay increases exponentially even when the arrival rate is adjusted to the available resources.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Packet Level Performance of 5G NR System Under Blockage and Micromobility Impairments

Khayrov,

Koucheryavy

2023

IEEE Access

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“…In addition, they did not consider the varied traffic between UEs based on the used application, which is the common scenario in the eMBB use case. Moreover, the authors in [23] proposed an enhancement to the SPF scheme by increasing the priorities of UEs with bad channel conditions. This methodology proves its efficiency in handling mmWave channel fluctuations in industrial internet of things applications.…”

Section: Related Workmentioning

confidence: 99%

“…The EPF scheme leaves the priority function without change, but it modifies the function that updates the average achievable data rate, in which the MCS rate for each channel condition is considered as an exponent to instantaneous rate. This new priority function is expressed as [23]:…”

Section: Scheduling Schemes In 5g Networkmentioning

confidence: 99%

Quality of Service Based Radio Resources Scheduling for 5G eMBB Use Case

Nor

Halunga

2022

Symmetry

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Several use cases appear with 5G and beyond networks such as enhanced mobile broadband (eMBB), where ultra-high data rates and low-latency connections become essential demands for asymmetric services, e.g., 8K video streaming and virtual reality (VR). The millimeter-wave (mmWave) band can be a promising player to handle these applications under the condition of efficient implementation of radio resource management (RRM) schemes, which distribute resources among user equipment (UEs) in the network. Firstly, mmWave UE channels are highly affected by the distance between the access point (AP) and UEs. Secondly, static and dynamic obstacles can easily block the AP-UE line-of-sight (LOS) link; hence, it highly attenuates mmWave signals. Moreover, eMBB applications lack symmetry in their data rate requirements, from 75 Mbps up to 300 Mbps; consequently, UE quality of service (QoS) should be considered in designing RRM schemes. In this paper, we study possible scheduling schemes that can be implemented for the 5G eMBB use case. Moreover, we propose a new demand-based proportional fairness (DPF) scheduling algorithm that first depends on both UE channel conditions and quality-of-service demands, then, if certain UEs reach the requirement, the algorithm prioritizes it only based on their channel quality. Furthermore, in this work, we consider a real model to simulate the effect of blockage occurrence on the performance of scheduling schemes. Results prove that the proposed DPF scheduling scheme outperforms conventional algorithms in terms of UE satisfaction while maintaining high total system throughput and fairness among UEs. For example, assuming blockage occurrence with 16 and 32 UEs, it guarantees satisfaction for more than 99% and 60% of UEs and, at the same time, obtains 3.29 and 4.24 Gbps system throughput and maintains fairness between UEs at 0.99 and 0.82, respectively. In contrast, conventional proportional fairness highly degrades satisfaction to only 74% and 30% to achieve total throughput equal to 3.1 and 4.3 Gbps, respectively.

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“…Jiteng Ma et.al. (2) "Recent Results on Proportional Fair Scheduling for mmWave-based Industrial Wireless Networks" In this research, an EPF scheduling technique is suggested to address the constraints of SPF scheduling in dynamic wireless channels. Extensive simulation results in ns-3 using the mmWave communication module show that the proposed EPF scheduler enhances the priority of UEs in NLOS positions over the SPF scheduler.…”

Section: IImentioning

confidence: 99%

A Novel Algorithm for Network Enhancement JUP and Rate Scheduling in mmWave for 5 G Networks

Fatima¹,

Sharma²

2022

IJRASET

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Because of the open nature of the wireless medium, which renders wireless transmission subject to eavesdropping and hostile attacks, security and privacy have become increasingly important aspects in wireless communication networks. The introduction and development of decentralised and ad-hoc wireless networks has posed significant obstacles for implementing higher-layer key distribution and management in practise. As a result, physical layer security has emerged as a feasible method for enabling safe transmission while keeping complexity to a minimum. We might use this technique to focus on physical layer security design and enhancement in wireless networks

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Recent Results on Proportional Fair Scheduling for mmWave-based Industrial Wireless Networks

Cited by 9 publications

References 15 publications

Packet Level Performance of 5G NR System Under Blockage and Micromobility Impairments

Packet Level Performance of 5G NR System Under Blockage and Micromobility Impairments

Quality of Service Based Radio Resources Scheduling for 5G eMBB Use Case

A Novel Algorithm for Network Enhancement JUP and Rate Scheduling in mmWave for 5 G Networks

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