Equalization and Co-Carrier Frequency Offsets Compensations for UWA-OFDM Communication Systems

Ramadan, Khaled; Dessouky, Moawad I.; El‐Samie, Fathi E. Abd

doi:10.1007/s11277-021-09453-5

Cited by 5 publications

(4 citation statements)

References 35 publications

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“…In addition, lighting devices also account for a large proportion of energy consumption. According to the data, the Three Gorges Hydropower Station generated 84 billion kwh per year in 2004, compared with 218 billion kwh for lighting, equivalent to three hydropower plants in the Three Gorges (Ramadan et al, 2022). At the same time, in the use process, the management of lamps is not scientific enough.…”

Section: Methodology Intelligent Lighting Control System For Medical ...mentioning

confidence: 99%

Design of Healthcare Lighting in Medical Centers Based on Power Carrier Communication

Huang

Zhang

2023

International Journal of Information Technologies and Systems Approach

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Hospital lighting is an essential embodiment of hospital modernization. With the increasingly significant role of the medical environment in the medical process, both the lighting requirements of various treatments in the hospital and the response of patients to the lighting environment should be considered in the design. Avoid the discomfort and disgust of patients caused by improper lighting layout or illumination selection. To meet the physiological and psychological needs of patients and medical personnel, the light environment of medical buildings is no longer limited to meeting the requirements of illumination. Still, it focuses on strengthening its comfort and creating a harmonious and comfortable medical environment as well as possible. Starting from the lighting design of health treatments in medical centers and aiming at the light environment regulation requirements of medical buildings based on power carrier technology (PLCC), a lighting control system with easy implementation and simple operation is developed in this paper.

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Section: Methodology Intelligent Lighting Control System For Medical ...mentioning

confidence: 99%

Design of Healthcare Lighting in Medical Centers Based on Power Carrier Communication

Huang

Zhang

2023

International Journal of Information Technologies and Systems Approach

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“…For the network whose accuracy is close to saturation, if the identity mapping layer is added in the network structure to make its input equal to the output, it will not increase the error after propagation while continuing to increase the network depth, that is, deepening the network through this method will not increase the training error. The design method of residual network comes from this [10][11][12][13]. The residual network is proposed mainly to reduce the network degradation caused by the rise of network depth.…”

Section: Low-power Communication Signalmentioning

confidence: 99%

“…For a neural network, suppose that the input of a certain section in the network is X and its corresponding expected output is ZðXÞ, that is, ZðXÞ is the expected potential mapping. Generally, when the network is deepened, the training difficulty will increase [13]. In the residual network structure diagram in the figure above, a path from input to output is added on the basis of network mapping, the input X is directly transferred to the output as the initial result, and the output result is ZðXÞ = FðXÞ + X.…”

Section: Low-power Communication Signalmentioning

confidence: 99%

Low-Power Communication Signal Enhancement Method of Internet of Things Based on Nonlocal Mean Denoising

Mingchuan

Liu

2022

Wireless Communications and Mobile Computing

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In order to improve the transmission effect of low-power communication signal of Internet of Things and compress the enhancement time of low-power communication signal, this paper designs a low-power communication signal enhancement method of Internet of Things based on nonlocal mean denoising. Firstly, the residual of one-dimensional communication layer is preprocessed by convolution core to obtain the residual of one-dimensional communication layer. Then, according to the two classification recognition methods, the noise reduction signal feature recognition of the low-power communication signal of the Internet of Things is realized, the nonlocal mean noise reduction algorithm is used to remove the low-power communication signal of the Internet of Things, and the weight value between similar blocks is calculated according to the European distance method. Finally, the low-power communication signal enhancement of the Internet of Things is realized by the nonlocal mean value denoising method. The experimental results show that the communication signal enhancement time overhead of this method is low, which is always less than 2.6 s. The lowest bit error rate after signal enhancement is about 1%, and the signal-to-noise ratio is up to 18 dB, which shows that this method can achieve signal enhancement.

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“…We investigate the application of a proposed nonlinear equalizer known as the JLCOZF-SIC, which uses the concept of the BMA. Throughout our study, we also looked at three different cases linked to equalization and co-CFO compensation [27]. In the first case, only the diagonal compensation is taken into account.…”

Section: Introductionmentioning

confidence: 99%

Efficient Non-Linear Equalization Scheme for Performance Enhancement of MIMO-OFDM Communication Systems Using Walsh Transform

Ramadan

2022

Preprint

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The Orthogonal Frequency Division Multiplexing (OFDM) scheme offers efficient spectrum use and simple frequency domain equalization. Instead of a bank of modulators or demodulators, the OFDM system can be implemented using the Inverse Fast Fourier Transform (IFFT) or FFT. The OFDM system can also be implemented using the Inverse Fast Walsh Hadamard Transform (IFWHT) or the Fast Walsh Hadamard Transform (FWHT). In this article, we use IFWHT and FWHT to implement the OFDM implementation. Following that, a suggestion for a Joint Low-Complexity Regularized Zero Forcing-Successive Interference Cancellation (JLCRZF-SIC) equalizer is made. With a low-complexity implementation, the suggested equalizer conducts both equalization and Carrier Frequency Offset (CFO) correction procedures. The simulation results reveal that the suggested equalizer plays a significant role in comparison to the traditional one.

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Equalization and Co-Carrier Frequency Offsets Compensations for UWA-OFDM Communication Systems

Cited by 5 publications

References 35 publications

Design of Healthcare Lighting in Medical Centers Based on Power Carrier Communication

Design of Healthcare Lighting in Medical Centers Based on Power Carrier Communication

Low-Power Communication Signal Enhancement Method of Internet of Things Based on Nonlocal Mean Denoising

Efficient Non-Linear Equalization Scheme for Performance Enhancement of MIMO-OFDM Communication Systems Using Walsh Transform

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