Energy Efficiency and Spectral Efficiency Tradeoff in RIS-Aided Multiuser MIMO Uplink Transmission

You, Li; Xiong, Jiayuan; Ng, Derrick Wing Kwan; Yuen, Chau; Wang, Wenjin; Gao, Xiqi

doi:10.1109/tsp.2020.3047474

Cited by 200 publications

(103 citation statements)

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“…During the simulation, we use the 3GPP spatial channel model under the suburban macro-cell propagation scenario [33,34]. The adopted parameters during the simulation are shown in the Table 1 below for clarity [35]. The average convergence performance of the proposed algorithm is illustrated in Figure 2.…”

Section: Numerical Resultsmentioning

confidence: 99%

On the Trade-Off between Energy Efficiency and Spectral Efficiency in RIS-Aided Multi-User MISO Downlink

et al. 2021

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As reconfigurable intelligent surfaces (RISs) have been gradually brought to reality, a large amount of research has been conducted to investigate the immense benefits of RISs. That is because RISs enable us to artificially direct the radio wave propagating through the environment at a relatively low cost. This paper investigates the trade-off between spectral efficiency (SE) and energy efficiency (EE) in the RIS-aided multi-user multiple-input single-output downlink. We develop an optimization framework for designing the transmitting precoding at the base station and the phase shift values at the RIS to balance the EE-SE trade-off. The proposed iterative optimization framework for the design includes quadratic transform, alternating optimization, and weighted minimization mean-square error conversion. Simulation results illustrate our optimization framework algorithm exhibits effectiveness and a fast convergence rate.

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Section: Numerical Resultsmentioning

confidence: 99%

On the Trade-Off between Energy Efficiency and Spectral Efficiency in RIS-Aided Multi-User MISO Downlink

et al. 2021

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“…The authors in [87] study the tradeoff between EE and SE in the uplink of a multiuser MIMO system aided by an IRS equipped with discrete phase shifters. The transmission strategy design is based on the partial CSI of the cascaded channels by assuming NLOS between both ends.…”

Section: Single-user Siso Scenariomentioning

confidence: 99%

Intelligent Reflective Surfaces for Wireless Networks: An Overview of Applications, Approached Issues, and Open Problems

et al. 2021

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An intelligent reflective surface (IRS) is a novel and revolutionizing communication technology destined to enable the control of the radio environment. An IRS is a real-time controllable reflectarray with a massive number of low-cost passive elements which introduce a phase shift to the incoming signals from the sources before the propagation towards the destination. This technology introduces the notion of a smart propagation environment with the aim of improving the system performance. In this paper, we provide a comprehensive literature overview on IRS technology, including its basic concepts and reconfiguration, as well as its design aspects and applications for wireless communication systems. We also study the performance metrics and the setups considered in recent publications related to IRS and provide suggestions of future research lines based on still unexplored use cases in the state-of-the-art.

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“…Moreover, it varies slowly over a much broader time span, which is preferable for power allocation design. Some previous works studied massive MIMO transmission based on statistical CSI [27]- [30]. For instance, in [27], an energy-efficient precoding procedure in the beam domain under the multicast massive MIMO scenario was studied.…”

Section: Introductionmentioning

confidence: 99%

“…In [28], the authors extended the EE optimizing question to nonorthogonal unicast and multicast transmission. The resource efficiency optimization transmission strategies were proposed to strike an adaptive EE-SE balance in [29], [30].…”

Section: Introductionmentioning

confidence: 99%

Energy Efficiency Optimization for Multi-Cell Massive MIMO: Centralized and Distributed Power Allocation Algorithms

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Zhang

et al. 2021

IEEE Trans. Commun.

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Energy Efficiency and Spectral Efficiency Tradeoff in RIS-Aided Multiuser MIMO Uplink Transmission

Cited by 200 publications

References 50 publications

On the Trade-Off between Energy Efficiency and Spectral Efficiency in RIS-Aided Multi-User MISO Downlink

On the Trade-Off between Energy Efficiency and Spectral Efficiency in RIS-Aided Multi-User MISO Downlink

Intelligent Reflective Surfaces for Wireless Networks: An Overview of Applications, Approached Issues, and Open Problems

Energy Efficiency Optimization for Multi-Cell Massive MIMO: Centralized and Distributed Power Allocation Algorithms

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