Energy Minimization in HARQ-I Relay-Assisted Networks With Delay-Limited Users

Maaz, Mohamad; Mary, Philippe; Hélard, Maryline

doi:10.1109/tvt.2017.2654684

Cited by 13 publications

(8 citation statements)

References 22 publications

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“…Moreover, link has to satisfy its goodput constraint (14). By plugging (42) and (43) into (14), the direct part of Lemma 4 is proved.…”

Section: Appendix D Proof Of Lemmamentioning

confidence: 98%

“…This problem is addressed considering capacity achieving codes with no HARQ and the Rayleigh channel in [40], [41]. Practical MCS with HARQ are considered in [42], [43], which consider the Rayleigh channel. In [42], the authors maximize the harmonic mean of the users' EE in a relay assisted networks when Type-I HARQ is considered.…”

Section: A Related Workmentioning

confidence: 99%

“…Practical MCS with HARQ are considered in [42], [43], which consider the Rayleigh channel. In [42], the authors maximize the harmonic mean of the users' EE in a relay assisted networks when Type-I HARQ is considered. In [43], the MSEE problem is solved for Type-II HARQ.…”

Section: A Related Workmentioning

confidence: 99%

“…First, assume that a link belongs to I t . Its optimal values for x and γ are given by (42) and (43), respectively. Moreover, link has to satisfy its goodput constraint (14).…”

Section: Appendix D Proof Of Lemmamentioning

confidence: 99%

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Energy Efficient Resource Allocation for Type-I HARQ Under the Rician Channel

Leturc

Ciblat

Martret

2019

IEEE Trans. Wireless Commun.

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This paper addresses the per-link power and bandwidth allocation problem with the objective of maximizing energy efficiency (EE) related metrics under a per-link minimum goodput constraint when only statistical channel state information is available. We consider a parallel (i.e., without multiuser interference) Rician channel model, which encompasses both Rayleigh and additive white Gaussian noise channels as special cases. We also consider Type-I hybrid automatic repeat request with practical modulation and coding schemes. The addressed problems are the maximization of the sum of the user's EE, the maximization of the EE of the user with the lowest EE and the maximization of the EE of the network. We derive the optimal solutions of these problems in closed form using fractional programming and a convex optimization framework. We show that substantial gains can be achieved by taking into account the line of sight between the transmitter and the receiver instead of only considering the average channel power.

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“…Moreover, link has to satisfy its goodput constraint (14). By plugging (42) and (43) into (14), the direct part of Lemma 4 is proved.…”

Section: Appendix D Proof Of Lemmamentioning

confidence: 98%

Section: A Related Workmentioning

confidence: 99%

Section: A Related Workmentioning

confidence: 99%

“…First, assume that a link belongs to I t . Its optimal values for x and γ are given by (42) and (43), respectively. Moreover, link has to satisfy its goodput constraint (14).…”

Section: Appendix D Proof Of Lemmamentioning

confidence: 99%

See 2 more Smart Citations

Energy Efficient Resource Allocation for Type-I HARQ Under the Rician Channel

Leturc

Ciblat

Martret

2019

IEEE Trans. Wireless Commun.

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“…Modeling the system with a Markov decision process, the authors derive optimal policies for truncated and persistent adaptive HARQ. An analysis using cooperation and simple HARQ is considered in [15], accounting for average delay constraints from a coding and modulation point of view. They propose a solution for power allocation and communication strategy that minimizes the overall power consumption of the system and their results show that the solution can reduce the overall energy consumption.…”

mentioning

confidence: 99%

Performance Analysis of Hybrid ARQ for Ultra-Reliable Low Latency Communications

Nadas¹,

Onireti²,

Souza³

et al. 2019

IEEE Sensors J.

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Considering an ultra-reliable low latency communication scenario, we assess the trade-off in terms of energy consumption between achieving time diversity through retransmissions and having to communicate at a higher rate due to latency constraints. Our analysis considers Nakagami-m blockfading channels with Chase combining hybrid automatic repeat request. We derive a fixed-point equation to determine the best number of allowed transmission attempts considering the maximum possible energy spent, which yields insights into the system behavior. Furthermore, we compare the energy consumption of the proposed approach against direct transmission with frequency diversity. Results show substantial energy savings using retransmissions when selecting the maximum number of transmission attempts according to our approach. For instance, considering a Rayleigh channel and smart grid teleprotection applications, our approach uses around 8 times less energy per bit compared with a direct transmission with frequency diversity.

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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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Energy Minimization in HARQ-I Relay-Assisted Networks With Delay-Limited Users

Cited by 13 publications

References 22 publications

Energy Efficient Resource Allocation for Type-I HARQ Under the Rician Channel

Energy Efficient Resource Allocation for Type-I HARQ Under the Rician Channel

Performance Analysis of Hybrid ARQ for Ultra-Reliable Low Latency Communications

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

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