Prioritized Service of URLLC Traffic in Industrial Deployments of 5G NR Systems

Markova, Ekaterina; Moltchanov, Dmitri; Pirmagomedov, Rustam; Ivanova, Daria; Koucheryavy, Yevgeni; Samouylov, Konstantin

doi:10.1007/978-3-030-66471-8_38

Cited by 3 publications

(3 citation statements)

References 14 publications

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“…However, as a load of URLLC traffic may not be known in advance this approach may result in inefficient use of resources. A viable alternative is to utilize priorities between traffic flows as illustrated in [90], [91]. Compared to the resource reservation technique, this approach does not suffer from resource utilization problem but may lead to reduced service performance of eMBB flows.…”

Section: Mmwave/thz Design Challengesmentioning

confidence: 99%

A Tutorial on Mathematical Modeling of 5G/6G Millimeter Wave and Terahertz Cellular Systems

Moltchanov

Sopin

Begishev

et al. 2022

IEEE Commun. Surv. Tutorials

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Millimeter wave (mmWave) and terahertz (THz) radio access technologies (RAT) are expected to become a critical part of the future cellular ecosystem providing an abundant amount of bandwidth in areas with high traffic demands. However, extremely directional antenna radiation patterns that need to be utilized at both transmit and receive sides of a link to overcome severe path losses, dynamic blockage of propagation paths by large static and small dynamic objects, macroand micromobility of user equipment (UE) makes provisioning of reliable service over THz/mmWave RATs an extremely complex task. This challenge is further complicated by the type of applications envisioned for these systems inherently requiring guaranteed bitrates at the air interface. This tutorial aims to introduce a versatile mathematical methodology for assessing performance reliability improvement algorithms for mmWave and THz systems. Our methodology accounts for both radio interface specifics as well as service process of sessions at mmWave/THz base stations (BS) and is capable of evaluating the performance of systems with multiconnectivity operation, resource reservation mechanisms, priorities between multiple traffic types having different service requirements. The framework is logically separated into two parts: (i) parameterization part that abstracts the specifics of deployment and radio mechanisms, and (ii) queuing part, accounting for details of the service process at mmWave/THz BSs. The modular decoupled structure of the framework allows for further extensions to advanced service mechanisms in prospective mmWave/THz cellular deployments while keeping the complexity manageable and thus making it attractive for system analysts.

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Section: Mmwave/thz Design Challengesmentioning

confidence: 99%

A Tutorial on Mathematical Modeling of 5G/6G Millimeter Wave and Terahertz Cellular Systems

Moltchanov

Sopin

Begishev

et al. 2022

IEEE Commun. Surv. Tutorials

Self Cite

View full text Add to dashboard Cite

show abstract

“…In this case, if the arrival intensity of either URLLC or eMBB traffic increases resulting in congestion, one or more session of the latter traffic type can be dropped. In our previous studies [22], [23], we developed a model for performance assessment of this strategy and demonstrated that explicit prioritization may indeed lead to almost perfect resource utilization while delivering the required performance guarantees to URLLC traffic. This approach has also been studies in [24], where system-and link-level simulations demonstrated the performance benefits of this mechanism.…”

Section: A Related Workmentioning

confidence: 99%

Performance of Priority-Based Traffic Coexistence Strategies in 5G mmWave Industrial Deployments

et al. 2022

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Recently standardized New Radio (NR) technology supports both ultra-reliable low-latency (URLLC) service and conventional enhanced mobile broadband (eMBB) service. Owing to extreme latency and reliability requirements an explicit prioritization needs to be provided to URLLC service when these traffic types are mixed up at the air interface. In this work, we consider simultaneous support of these two services in an industrial environment, where production line equipment utilizes URLLC service for reorganization and synchronous operation while eMBB service is used for remote monitoring. By utilizing the tools of stochastic geometry and queuing theory, we formalize the model with pre-emptive priority service at NR base station (BS) with and without direct device-to-device (D2D) communications. Our numerical results indicate that the priority-based implementation of URLLC and eMBB coexistence allows us to isolate the former traffic efficiently and requires no external control. D2D-aware strategy, where the BS explicitly reserves some resources for direct communications, drastically outperforms those, where no explicit reservation is utilized, as well as the baseline strategy where all the traffic goes through the BS. This strategy can achieve 10 −5 of URLLC drop probability when the baseline strategy produces just 5 × 10 −3 , leading to three orders of magnitude reduction in drop probability and without significant impact produced on eMBB session drop probability. The developed model can be utilized to estimate the NR BS density required to support prescribed performance guarantees for all the considered strategies.

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“…However, as a load of URLLC traffic may not be known in advance this approach may result in inefficient use of resources. A viable alternative is to utilize priorities between traffic flows as illustrated in [68], [69]. Compared to the resource reservation technique, this approach does not suffer from resource utilization problem but may lead to reduced service performance of eMBB flows.…”

Section: Traffic Types Coexistencementioning

confidence: 99%

A Tutorial on Mathematical Modeling of Millimeter Wave and Terahertz Cellular Systems

Moltchanov¹,

Sopin²,

Begishev³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

Millimeter wave (mmWave) and terahertz (THz) radio access technologies (RAT) are expected to become a critical part of the future cellular ecosystem providing an abundant amount of bandwidth in areas with high traffic demands. However, extremely directional antenna radiation patterns that need to be utilized at both transmit and receive sides of a link to overcome severe path losses, dynamic blockage of propagation paths by large static and small dynamic objects, macro-and micromobility of user equipment (UE) makes provisioning of reliable service over THz/mmWave RATs an extremely complex task. This challenge is further complicated by the type of applications envisioned for these systems inherently requiring guaranteed bitrates at the air interface. This tutorial aims to introduce a versatile mathematical methodology for assessing performance reliability improvement algorithms for mmWave and THz systems. Our methodology accounts for both radio interface specifics as well as service process of sessions at mmWave/THz base stations (BS) and is capable of evaluating the performance of systems with multiconnectivity operation, resource reservation mechanisms, priorities between multiple traffic types having different service requirements. The framework is logically separated into two parts: (i) parameterization part that abstracts the specifics of deployment and radio mechanisms, and (ii) queuing part, accounting for details of the service process at mmWave/THz BSs. The modular decoupled structure of the framework allows for further extensions to advanced service mechanisms in prospective mmWave/THz cellular deployments while keeping the complexity manageable and thus making it attractive for system analysts.

show abstract

Prioritized Service of URLLC Traffic in Industrial Deployments of 5G NR Systems

Cited by 3 publications

References 14 publications

A Tutorial on Mathematical Modeling of 5G/6G Millimeter Wave and Terahertz Cellular Systems

A Tutorial on Mathematical Modeling of 5G/6G Millimeter Wave and Terahertz Cellular Systems

Performance of Priority-Based Traffic Coexistence Strategies in 5G mmWave Industrial Deployments

A Tutorial on Mathematical Modeling of Millimeter Wave and Terahertz Cellular Systems

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