MGGAN-Based Hybrid Beamforming Design for Massive MIMO Systems Against Rank-Deficient Channels

Pang, Lihua; Li, Yudong; Zhang, Yang; Shang, Minghao; Chen, Yijian; Wang, Anyi

doi:10.1109/lcomm.2022.3200939

Cited by 5 publications

(4 citation statements)

References 15 publications

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“…10. Multi-GAN architecture for beamforming with Generator G1, (b) Generator G2, (c) Generator G3, (d) the spectrum efficiency module, and (e) the discriminator [113].…”

Section: E Beamformingmentioning

confidence: 99%

“…Use GAN to reconstruct a low-dimensional channel fed back from the receiver to perform hybrid beamforming at the transmitter [113] Suffer from the rank-deficient problem Use a GAN architecture with three generators to recover (i) rank-deficient channels, obtain (ii) analog beamforming and (iii) digital beamforming matrices.…”

Section: Table VII Summary Of Gai Approaches For Beamformingmentioning

confidence: 99%

“…One possible extension of this work is to extend the considered model/method to extremely-large massive MIMO or holographic MIMO. Differently, the authors in [113] consider the beamforming design in massive MIMO systems with large antenna arrays where only rank-deficient CSI can be obtained. This rankdeficient problem has not been fully solved in the literature using conventional techniques.…”

Section: Table VII Summary Of Gai Approaches For Beamformingmentioning

confidence: 99%

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Effect of heavy metals on duckweed growth

Nguyen¹,

Hoang²,

Pham³

et al. 2022

CTUJS

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In this study, three clones of the duckweed genus Lemna, collected from three different regions of Vietnam Binh Thuan Bac Giang and Ben Tre were used to evaluate the growth and development in a culture medium containing different concentrations of As3+, Cd2+, or Pb2+. During 14 days of incubation, the growth rate was determined daily by measuring the surface area of all plants of each sample. Experimental results show that the three Lemna clones could grow in nutrient medium contaminated by heavy metal at a concentration of 0.3-0.5 mg/L for As3+, 0.15-0.3 mg/L for Cd2+, and 0.15 mg/L for Pb2+. At these concentrations, the division rate of the treated clones was several times higher than that of the controls. The highest increase in the surface area was recorded for Lemna BTN (68.47 times higher when cultured in medium supplemented in 0.3 mg/L Pb2+ than under control conditions). The surface area of Lemna BTR cultured in a medium supplemented with 0.3 mg/L As3+ was 54.65 times higher than in medium without arsenic. The obtained results showed that Lemna BGG and Lemna BTR can tolerate arsenic and cadmium pollution while Lemna BTN tolerates lead pollution.

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“…10. Multi-GAN architecture for beamforming with Generator G1, (b) Generator G2, (c) Generator G3, (d) the spectrum efficiency module, and (e) the discriminator [113].…”

Section: E Beamformingmentioning

confidence: 99%

Section: Table VII Summary Of Gai Approaches For Beamformingmentioning

confidence: 99%

Section: Table VII Summary Of Gai Approaches For Beamformingmentioning

confidence: 99%

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Effect of heavy metals on duckweed growth

Nguyen¹,

Hoang²,

Pham³

et al. 2022

CTUJS

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“…In recent years, it has emerged that a large capacity can be attracted by exploiting the spatial dimension of the channel, i.e., by using MIMO (multiple input multiple output) technique [8,9]. The data rates offered by this technique have improved the telecommunications market landscape, and several services are made possible by the great potential of this technique [10]. Therefore, the main purpose of this paper is to demonstrate the foundations of multi-antenna communications and mathematically derive the overall capacity of a MIMO system in THz context MIMO.…”

Section: Introductionmentioning

confidence: 99%

Analysis of MIMO Channel Capacity for Terahertz Communication Systems

Hmamou,

Mestoui,

Islam

et al. 2024

PIER C

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The primary focus of this paper is to evaluate the channel capacity of a Terahertz (THz) communication system using a Multiple Input Multiple Output (MIMO) technique. By deriving mathematical expressions for channel capacity and considering practical constraints, the paper provides insights into the performance of such systems under various conditions. The channel model used in this work accommodates the channel accuracies and transceivers constraints. To validate the proposed channel capacity, some simulations by taking into account deferent parameters namely SNR (Signal to Noise Ratio), MIMO channel Matrix size, and distance between transmitter and receiver are performed. These simulations are carried out for 3 cases which are: (1) Channel State Information CSI is known to both transmitter (Tx) and receiver (Rx), (2) CSI is known to Rx but unknown to Tx, (3) CSI is unknown to both Tx and Rx. In this study, we introduce a mathematical formulation for a communication channel tailored for Terahertz (THz) applications. Using this channel model, we analyze the capacity of the THz channel. The suggested research has the potential to be applied in the design and enhancement of Terahertz (THz) wireless communication systems, aiding in the advancement of robust and high-capacity wireless networks that can fulfill the requirements of contemporary multimedia applications.

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