URLLC Mode Optimal Resource Allocation to Support HARQ in 5G Wireless Networks

Jang, Hyeondeok; Kim, Junsung; Yoo, Wonsuk; Chung, Jong-Moon

doi:10.1109/access.2020.3007902

Cited by 22 publications

(8 citation statements)

References 13 publications

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“…The queuing model assumed is M/GI/∞ with no queuing delay. In [228], a similar optimization model is considered, however, an M/G/1 queuing model with queuing delay is assumed. A truncated HARQ-CC is also proposed in [229] for URLLC where a new approach is proposed to tune the maximum number of retransmissions to minimize energy consumption in HARQ-CC under latency, reliability, and transmit power constraints.…”

Section: A Urllcmentioning

confidence: 99%

Hybrid Automatic Repeat Request (HARQ) in Wireless Communications Systems and Standards: A Contemporary Survey

Ahmed

Al-Dweik

Iraqi

et al. 2021

IEEE Commun. Surv. Tutorials

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Automatic repeat request (ARQ) schemes, and in particular hybrid-ARQ (HARQ) schemes, which jointly adopt forward error correction (FEC) and ARQ, are essential to provide reliable data transmission in wireless communications systems. However, the feedback from the receiver to the transmitter and the retransmission process used in ARQ incurs significant cost in terms of power efficiency, throughput, computational power and delay. Unfortunately, such drawbacks can limit their applications to several current and emerging technologies. More specifically, the increasing number of wireless users has create spectrum scarcity, relying on small-size batteries create power constraints, deployment of real-time applications boost the demand for ultralow delay networks, and the ultra-small low-cost internet of things (IoT) devices has limited signal processing and computation capabilities. Consequently, extensive research efforts have been dedicated to overcome the limitations inherent in HARQ. This survey paper provides an extensive literature review of the stateof-the-art HARQ techniques and discusses their integration in various wireless technologies. Moreover, it provides insights on advantages and disadvantages of particular ARQ types and discusses open problems and future directions.

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Section: A Urllcmentioning

confidence: 99%

Hybrid Automatic Repeat Request (HARQ) in Wireless Communications Systems and Standards: A Contemporary Survey

Ahmed

Al-Dweik

Iraqi

et al. 2021

IEEE Commun. Surv. Tutorials

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“…In [ 153 ], the M/G/1 queuing model was deployed to investigate the inaccurate transmission retrieval interruption of URLLC multiuser amenities, and in applying this model, the lowest essential data rate was designed and implemented on an adaptive control scheme. The presented Pollaczek–Khinchine (P-K) formula-based quadratic optimization (PFQO) method for controlling the maximum retransmission parameter of the hybrid automatic repeated request (HARQ) technique in URLLC enhanced the bandwidth requirement.…”

Section: Discussionmentioning

confidence: 99%

Resource Allocation Schemes for 5G Network: A Systematic Review

Kamal

Raza

Alam

et al. 2021

Sensors

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Fifth-generation (5G) communication technology is intended to offer higher data rates, outstanding user exposure, lower power consumption, and extremely short latency. Such cellular networks will implement a diverse multi-layer model comprising device-to-device networks, macro-cells, and different categories of small cells to assist customers with desired quality-of-service (QoS). This multi-layer model affects several studies that confront utilizing interference management and resource allocation in 5G networks. With the growing need for cellular service and the limited resources to provide it, capably handling network traffic and operation has become a problem of resource distribution. One of the utmost serious problems is to alleviate the jamming in the network in support of having a better QoS. However, although a limited number of review papers have been written on resource distribution, no review papers have been written specifically on 5G resource allocation. Hence, this article analyzes the issue of resource allocation by classifying the various resource allocation schemes in 5G that have been reported in the literature and assessing their ability to enhance service quality. This survey bases its discussion on the metrics that are used to evaluate network performance. After consideration of the current evidence on resource allocation methods in 5G, the review hopes to empower scholars by suggesting future research areas on which to focus.

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“…Thus, it is necessary to properly utilize/combine such approaches based on various parameters such as load, channel state, and queue size. References [6], [10] propose a joint resource allocation and HARQ optimization framework to minimize the required bandwidth subject to packet error ratio in single-cell scenarios. These works make strict assumptions on queue models (e.g., M/GI/∞ with zero queuing delay in [6] and M/G/1 in [10]), which often are not realistic in cyber-physical production systems.…”

Section: A Diversity and Power Control In Cpssmentioning

confidence: 99%

Saving Energy and Spectrum in Enabling URLLC Services: A Scalable RL Solution

Ganjalizadeh

Ghadikolaei

Azari

et al. 2023

IEEE Trans. Ind. Inf.

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Communication systems supporting cyberphysical production applications should satisfy stringent delay and reliability requirements. Diversity techniques and power control are the main approaches to reduce latency and enhance the reliability of wireless communications at the expense of redundant transmissions and excessive resource usage. Focusing on the application layer reliability key performance indicators (KPIs), we design a deep reinforcement learning orchestrator for power control and hybrid automatic repeat request retransmissions to optimize these KPIs. Furthermore, to address the scalability issue that emerges in the per-device orchestration problem, we develop a new branching soft actor-critic framework in which a separate branch represents the action space of each industrial device. Our orchestrator enables near realtime control and can be implemented in the edge cloud. We test our solution with a 3GPP-compliant and realistic simulator for factory automation scenarios. Compared to the state-of-the-art, our solution offers significant scalability gains in terms of computational time and memory requirements. Our extensive experiments show significant improvements in our target KPIs, over the state-of-the-art, especially for 5th percentile user availability. To achieve these targets, our framework requires substantially less total energy or spectrum, thanks to our scalable RL solution.

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URLLC Mode Optimal Resource Allocation to Support HARQ in 5G Wireless Networks

Cited by 22 publications

References 13 publications

Hybrid Automatic Repeat Request (HARQ) in Wireless Communications Systems and Standards: A Contemporary Survey

Hybrid Automatic Repeat Request (HARQ) in Wireless Communications Systems and Standards: A Contemporary Survey

Resource Allocation Schemes for 5G Network: A Systematic Review

Saving Energy and Spectrum in Enabling URLLC Services: A Scalable RL Solution

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