Model for Analyzing Impact of Path Loss on eMBB Bit Rate Degradation Under Priority URLLC Transmission in 5G Network

Gudkova, Irina А.; Makeeva, Elena; Ageeva, Anastasia; Gorshenin, Andrey

doi:10.1007/978-3-031-23207-7_14

Cited by 1 publication

(1 citation statement)

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“…Additionally, we proposed a model of radio admission control for URLLC and adaptive bit rate eMBB in [41]. In [42], we introduced a model as a resource queuing system, and in [43], we extended this model to consider eMBB bit rate degradation due to the impact of path loss, based on the methods used in [44,45].…”

Section: Related Workmentioning

confidence: 99%

Retrial Queueing System for Analyzing Impact of Priority Ultra-Reliable Low-Latency Communication Transmission on Enhanced Mobile Broadband Quality of Service Degradation in 5G Networks

Makeeva,

Kochetkova,

Alkanhel

2023

Mathematics

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Fifth generation (5G) networks support ultra-reliable low-latency communications (URLLC) and enhanced mobile broadband (eMBB). The coexistence of URLLC and eMBB is often organized by non-orthogonal multiple access (NOMA), giving priority to URLLC and resulting in eMBB quality of service (QoS) degradation. In this paper, we address the issue of joint URLLC and eMBB transmission, focusing on the problem from the perspective of delay-tolerant eMBB. Due to the priority given to URLLC, we assume that an eMBB session may be interrupted if there are no free resources available for URLLC or delayed when a new eMBB session arrives. To make the scheme more flexible, we propose that interrupted and delayed eMBB sessions periodically check for free resources, rather than continuously. To analyze this scenario, we propose a retrial queuing system with two retrial buffers (orbits) for interrupted and delayed eMBB sessions. The stationary probability distribution, provided in matrix form by recursive formulas, is presented. The paper concludes with a numerical example showing that the scheme with two buffers, compared to one buffer, practically doubles the average number of active eMBB sessions while keeping the interruption probability below 0.001. We provide an illustration of the configuration of eMBB retrial rates to meet its QoS requirements.

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Section: Related Workmentioning

confidence: 99%