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  • Review
  • Open Access
7 Citations
4,288 Views
12 Pages

The Scribble polarity module is composed by Scribble (Scrib), Discs large 1 (Dlg1) and Lethal (2) giant larvae (L(2)gl), a group of highly conserved neoplastic tumor suppressor genes (TSGs) from flies to humans. Even though the Scribble module has be...

(This article belongs to the Special Issue Basic and Translational Models of Cooperative Oncogenesis)
  • Article
  • Open Access
14 Citations
2,650 Views
15 Pages

K-Means Module Division Method of FDM3D Printer-Based Function–Behavior–Structure Mapping

  • Ying You,
  • Zhiqiang Liu,
  • Youqian Liu,
  • Ning Peng,
  • Jian Wang,
  • Yizhe Huang and
  • Qibai Huang

23 June 2023

Product performance, function, cost, and the level of module generalization are all significantly influenced by product modular design, but different goods require different division indicators and techniques. The purpose of this study is to provide...

  • Article
  • Open Access
1 Citations
1,106 Views
12 Pages

The module division scheme of commercial aircraft and other complex system products has a significant impact on the functionality, performance, and cost of the aircraft. To obtain scientifically rational modular division solutions for commercial airc...

(This article belongs to the Section Aeronautics)
  • Article
  • Open Access
7 Citations
4,171 Views
14 Pages

φ-OTDR Based on Orthogonal Frequency-Division Multiplexing Time Sequence Pulse Modulation

  • Zhengyang Li,
  • Yangan Zhang,
  • Xueguang Yuan,
  • Zhenyu Xiao,
  • Yuan Zhang and
  • Yongqing Huang

16 October 2023

This study introduces an innovative phase-sensitive optical time-domain reflectometer (φ-OTDR) technology based on orthogonal frequency-division multiplexing (OFDM) and nonlinear frequency modulation (NLFM) pulse modulation sequences. The propose...

  • Article
  • Open Access
12 Citations
3,631 Views
11 Pages

25 October 2022

We demonstrate, numerically, a new concept for on-chip magneto-optical (MO) modulation in dense wavelength division multiplexing (DWDM) applications. Our idea uses materials and mechanisms that are compatible with current silicon-on-insulator fabrica...

(This article belongs to the Section Communications)
  • Review
  • Open Access
10 Citations
5,621 Views
19 Pages

Light Fidelity (LiFi) technology has gained attention and is growing rapidly today. Utilizing light as a propagation medium allows LiFi to promise a wider bandwidth than existing Wireless Fidelity (WiFi) technology and enables the implementation of c...

  • Article
  • Open Access
4 Citations
3,468 Views
20 Pages

7 January 2023

In this paper, continuous phase modulation-generalized frequency division multiplexing (CPM-GFDM) is proposed. The performance of CPM-GFDM is evaluated over Gaussian and frequency selective fading channels. In the proposed technique, the mapper in th...

(This article belongs to the Special Issue Advances in Wireless Communication Technologies)
  • Communication
  • Open Access
13 Citations
4,036 Views
13 Pages

4 February 2021

By combining frequency-division multiplexing and normalized wavelength modulation spectroscopy, a robust remote multi-species sensor was developed and demonstrated for practical hydrocarbon monitoring. Independently modulated laser beams are combined...

(This article belongs to the Section Optical Sensors)
  • Article
  • Open Access
7 Citations
3,750 Views
14 Pages

24 June 2020

This study developed a bipolar optical code division multiple access (Bi-OCDMA) technique based on spectral amplitude coding for the formation and transmission of optical-polarized and coded signals over wireless optical channels. Compared with conve...

(This article belongs to the Special Issue Enabling Technology in Optical Fiber Communications: From Device, System to Networking)
  • Article
  • Open Access
1,480 Views
17 Pages

This study proposes two approaches for improving the effectiveness of spatial modulation integrated into layer division multiplexing (SM-LDM) in broadcasting systems: biased-power allocation (Bi-PA) and shared antenna selection (SAS). Even though dif...

(This article belongs to the Section Microwave and Wireless Communications)
  • Article
  • Open Access
8 Citations
3,657 Views
23 Pages

26 June 2021

In this study, a bipolar optical code-division multiple-access (Bi-OCDMA) technique based on spectral amplitude coding (SAC) was proposed by using a phase modulator to realize polarization coding through a free-space optical (FSO) channel. Various ty...

(This article belongs to the Section Optics and Lasers)
  • Article
  • Open Access
6 Citations
3,093 Views
11 Pages

28 June 2019

A time division multiplexing differential modulation technique is proposed to address the interference problem caused by the fluctuation of laser light intensity in the single optical path detection system. Simultaneously, a multi-reflection chamber...

(This article belongs to the Special Issue State-of-the-art Laser Gas Sensing Technologies)
  • Article
  • Open Access
26 Citations
12,671 Views
30 Pages

17 May 2017

In this paper, we present a novel signal processing method for video synthetic aperture radar (ViSAR) systems, which are suitable for operation in unmanned aerial vehicle (UAV) environments. The technique improves aspects of the system’s performance,...

(This article belongs to the Special Issue Advances in SAR: Sensors, Methodologies, and Applications)
  • Review
  • Open Access
9 Citations
5,666 Views
45 Pages

Unified Model and Survey on Modulation Schemes for Next-Generation Automotive Radar Systems

  • Moritz Kahlert,
  • Tai Fei,
  • Yuming Wang,
  • Claas Tebruegge and
  • Markus Gardill

10 April 2025

Commercial automotive radar systems for advanced driver assistance systems (ADASs) have relied on frequency-modulated continuous wave (FMCW) waveforms for years due to their low-cost hardware, simple signal processing, and established academic and in...

(This article belongs to the Special Issue Signal Processing, Image Processing and Fusion Techniques in Remote Sensing)
  • Article
  • Open Access
1,568 Views
21 Pages

24 January 2025

A photovoltaic-thermal side-absorption concentrated module (PT-SACM) based on spectrum division for photovoltaic-thermal hybrid applications is carried out. In order to reduce the absorption by materials and the axial-chromatic aberration caused by t...

(This article belongs to the Section A2: Solar Energy and Photovoltaic Systems)
  • Article
  • Open Access
10 Citations
2,695 Views
16 Pages

2 August 2022

Studying the temperature field of photovoltaic modules is important for improving their power generation efficiency. To solve the problem of traditional sensors being unsuitable for measuring the spatial temperature field, we designed a real-time det...

  • Article
  • Open Access
3 Citations
7,198 Views
10 Pages

Immunity to Laser Power Variation in a DFB Diode Laser Based Optical Gas Sensor Using a Division Process

  • Hengtai Chang,
  • Jun Chang,
  • Qingjie Huang,
  • Qiang Wang,
  • Changbin Tian,
  • Wei Wei and
  • Yuanyuan Liu

22 April 2015

The division process used in a DFB diode laser-based optical gas sensor was studied to improve the immunity to laser power variation. Residual amplitude modulation (RAM) in wavelength modulation spectroscopy (WMS) detection was eliminated by intensit...

(This article belongs to the Special Issue Optical Sensors for Chemical, Biological and Industrial Applications)
  • Communication
  • Open Access
7 Citations
3,029 Views
12 Pages

Orthogonal Subblock Division Multiple Access for OFDM-IM-Based Multi-User VLC Systems

  • Yungui Nie,
  • Jiamin Chen,
  • Wanli Wen,
  • Min Liu,
  • Xiong Deng and
  • Chen Chen

In this paper, we propose and experimentally demonstrate an orthogonal subblock division multiple access (OSDMA) scheme for orthogonal frequency division multiplexing with index modulation (OFDM-IM)-based multi-user visible light communication (MU-VL...

(This article belongs to the Special Issue Next-Generation Optical Wireless Communication (OWC))
  • Review
  • Open Access
3,060 Views
13 Pages

26 June 2023

It has been proposed to implement the >100 Gb/s data-center interconnects using a two-channel optical time-division multiplexed system with multilevel pulse-amplitude modulation. Unlike the conventional four-channel optical time-division multiplex...

(This article belongs to the Topic Fiber Optic Communication)
  • Article
  • Open Access
2 Citations
3,082 Views
18 Pages

26 March 2025

This study proposes optimizing the performance of free space optic signal transmission using spatial division multiplexing. The research uses different modified duobinary modulation schemes to model and optimize three hybrid mode division multiplexin...

(This article belongs to the Special Issue Novel Approaches for High Speed Optical Communication)
  • Communication
  • Open Access
1 Citations
2,976 Views
13 Pages

A Phase-Sensitive Optical Time Domain Reflectometry with Non-Uniform Frequency Multiplexed NLFM Pulse

  • Zhengyang Li,
  • Yangan Zhang,
  • Xueguang Yuan,
  • Zhenyu Xiao,
  • Yuan Zhang and
  • Yongqing Huang

20 October 2023

In the domain of optical fiber distributed acoustic sensing, the persistent challenge of extending sensing distances while concurrently improving spatial resolution and frequency response range has been a complex endeavor. The amalgamation of pulse c...

(This article belongs to the Section Optical Sensors)
  • Article
  • Open Access
4 Citations
2,261 Views
14 Pages

23 December 2024

In the face of increasingly complex application scenarios, there is an urgent need for (Radio Frequency Identification) RFID systems that are capable of accurately identifying microwave signals of different frequency bands. Based on the acumen detect...

(This article belongs to the Special Issue RFID Applied to IoT Devices)
  • Article
  • Open Access
10 Citations
3,520 Views
15 Pages

Modelling and Simulation of Pseudo-Noise Sequence-Based Underwater Acoustic OSDM Communication System

  • Lanjun Liu,
  • Hao Zhao,
  • Ming Li,
  • Lin Zhou,
  • Jiucai Jin,
  • Jie Zhang,
  • Zhichao Lv,
  • Hui Ren and
  • Jicun Mao

19 May 2019

Orthogonal signal division multiplex (OSDM) is an emerging signal modulation technology which has a lower peak-to-average power ratio (PAPR) and a flexible subcarrier system architecture. Particularly, it can be seen as a bridge between the single-ca...

(This article belongs to the Section Acoustics and Vibrations)
  • Article
  • Open Access
2,023 Views
21 Pages

14 November 2023

This paper proposes an active–reactive power collaborative scheduling model with cluster division for the flexible distributed energy resources (DERs) of smart-building systems to resolve the high complexity of the centralized optimal schedulin...

(This article belongs to the Special Issue Strategies for Building Energy Efficiency)
  • Article
  • Open Access
17 Citations
4,085 Views
15 Pages

9 June 2020

The performance of various nonlinear frequency division multiplexed (NFDM) fiber-optic transmission systems has been observed to decrease with increasing signal duration. For a class of NFDM systems known as b-modulators, we show that the nonlinear b...

(This article belongs to the Special Issue Information Theory of Optical Fiber)
  • Article
  • Open Access
1,444 Views
21 Pages

Optimized Deployment of Generalized OCDM in Deep-Sea Shadow-Zone Underwater Acoustic Channels

  • Haodong Yu,
  • Cheng Chi,
  • Yongxing Fan,
  • Zhanqing Pu,
  • Wei Wang,
  • Li Yin,
  • Yu Li and
  • Haining Huang

Communication in deep-sea shadow zones remains a significant challenge due to high propagation losses, complex multipath effects, long transmission delays, and strong environmental influences. In recent years, orthogonal chirp division multiplexing (...

(This article belongs to the Section Ocean Engineering)
  • Article
  • Open Access
3 Citations
2,894 Views
19 Pages

27 August 2021

The focusing of light through turbid media like biological tissues is strongly hindered by the scattering of light which limits its safe practice and application in medicine. In order to control this phenomenon, we shaped the incident wavefront using...

(This article belongs to the Special Issue Tissue Optics)
  • Article
  • Open Access
66 Citations
14,972 Views
18 Pages

Development of a Respiratory Inductive Plethysmography Module Supporting Multiple Sensors for Wearable Systems

  • Zhengbo Zhang,
  • Jiewen Zheng,
  • Hao Wu,
  • Weidong Wang,
  • Buqing Wang and
  • Hongyun Liu

27 September 2012

In this paper, we present an RIP module with the features of supporting multiple inductive sensors, no variable frequency LC oscillator, low power consumption, and automatic gain adjustment for each channel. Based on the method of inductance measurem...

(This article belongs to the Section Physical Sensors)
  • Article
  • Open Access
1 Citations
1,565 Views
17 Pages

A Study on Visible Light Communication Systems Based on OLED Devices

  • Wanyi Zhang,
  • Haochen Xu,
  • Sihang Ji and
  • Jiazhuang Lan

27 November 2025

Addressing the limitations of conventional inorganic light-emitting diodes (LEDs) in flexible visible light communication (VLC) applications, this study investigates the feasibility of organic light-emitting diodes (OLEDs) as an integrated platform f...

(This article belongs to the Special Issue Advanced Optoelectronic Materials/Devices and Their Applications)
  • Article
  • Open Access
10 Citations
3,960 Views
11 Pages

Ultralow Noise and Timing Jitter Semiconductor Quantum-Dot Passively Mode-Locked Laser for Terabit/s Optical Networks

  • Youxin Mao,
  • Guocheng Liu,
  • Khan Zeb,
  • Zhenguo Lu,
  • Jiaren Liu,
  • Philip J. Poole,
  • Chun-Ying Song and
  • Pedro Barrios

27 September 2022

Diode optical frequency comb lasers are promising compact solutions to generate high-speed optical pulses for applications in high spectral efficiency wavelength division multiplexing transmission with advanced modulation formats. In this paper, an I...

(This article belongs to the Special Issue Ultrafast Lasers: Science and Applications)
  • Article
  • Open Access
1 Citations
579 Views
14 Pages

A Transformer–LSTM Hybrid Detector for OFDM-IM Signal Detection

  • Leijun Wang,
  • Zian Tong,
  • Kuan Wang,
  • Jinfa Xie,
  • Xidong Peng,
  • Bolong Li,
  • Jiawen Li,
  • Xianxian Zeng,
  • Jin Zhan and
  • Rongjun Chen

14 January 2026

This paper addresses the signal detection problem in orthogonal frequency division multiplexing with index modulation (OFDM-IM) systems using deep learning (DL) techniques. In particular, a DL-based detector termed FullTrans-IM is proposed, which int...

(This article belongs to the Special Issue Wireless Communications: Signal Processing Perspectives, 2nd Edition)
  • Article
  • Open Access
11 Citations
7,253 Views
17 Pages

OTFS: A Potential Waveform for Space–Air–Ground Integrated Networks in 6G and Beyond

  • Obinna Okoyeigbo,
  • Xutao Deng,
  • Agbotiname Lucky Imoize and
  • Olamilekan Shobayo

11 March 2025

6G is expected to provide ubiquitous connectivity, particularly in remote and inaccessible environments, by integrating satellite and aerial networks with existing terrestrial networks, forming Space–Air–Ground Integrated Networks (SAGINs...

  • Article
  • Open Access
6 Citations
5,227 Views
22 Pages

Millimeter-Wave OFDM-FMCW Radar-Communication Integration System Design

  • Jiangtao Liu,
  • Wenyuan Feng,
  • Tao Su,
  • Jianzhong Chen and
  • Shaohong Xue

18 March 2025

Frequency-modulated continuous wave (FMCW) and orthogonal frequency-division multiplexing (OFDM) technologies play significant roles in millimeter-wave radar and communication. Their combinations, however, are understudied in the literature. This pap...

  • Article
  • Open Access
10 Citations
3,051 Views
13 Pages

LiNEV: Visible Light Networking for Connected Vehicles

  • Osama Saied,
  • Omprakash Kaiwartya,
  • Mohammad Aljaidi,
  • Sushil Kumar,
  • Mufti Mahmud,
  • Rupak Kharel,
  • Farah Al-Sallami and
  • Charalampos C. Tsimenidis

11 August 2023

DC-biased optical orthogonal frequency division multiplexing (DCO-OFDM) has been introduced to visible light networking framework for connected vehicles (LiNEV) systems as a modulation and multiplexing scheme. This is to overcome the light-emitting d...

(This article belongs to the Special Issue Advances in Visible Light Communication)
  • Article
  • Open Access
1,040 Views
15 Pages

Lamb Wave-Based FDM-PPM Method Data Transmission Scheme in Plate Structures

  • Tong Xu,
  • Bin Wu,
  • Xiang Gao,
  • Jianfeng Liu and
  • Xiucheng Liu

19 March 2025

Lamb wave-based non-electromagnetic communication is an effective solution for real-time information exchange in health monitoring networks of large metallic plate structures. The multimodal nature, dispersive characteristics, and the influence of re...

(This article belongs to the Section Fault Diagnosis & Sensors)
  • Article
  • Open Access
1 Citations
4,684 Views
13 Pages

10 January 2020

On the brink of sophisticated generations of mobile starting with the fifth-generation (5G) and moving on to the future mobile technologies, the necessity for developing the wireless telecommunications waveform is extremely required. The main reason...

(This article belongs to the Special Issue Emerging Topics in Wireless Communications for Future Smart Cities)
  • Article
  • Open Access
24 Citations
5,243 Views
25 Pages

30 April 2022

Adaptive modulation received significant attention for underwater acoustic (UA) communication systems with the aim of increasing the system efficiency. It is challenging to attain a high data rate in UA communication, as UA channels vary fast, along...

(This article belongs to the Special Issue Smart Systems for Wireless Communications and Networks)
  • Article
  • Open Access
7 Citations
3,649 Views
12 Pages

All-Fiber Photoacoustic Gas Sensing with Interferometric Location

  • Meng Li,
  • Mengpeng Hu,
  • Hui Zhang,
  • Jianing Wang,
  • Tongyu Tang,
  • Mai Hu and
  • Qiang Wang

Photoacoustic spectroscopy (PAS) is a promising gas detection technique with high sensitivity, fast response, and good stability. Frequency-modulated continuous-wave (FMCW) interferometry offers precise distance detection with high spatial resolution...

(This article belongs to the Special Issue Emerging Frontiers in Photoacoustic Spectroscopy Detection)
  • Article
  • Open Access
33 Citations
6,158 Views
12 Pages

30 June 2022

The hot spot effect is an important factor that affects the power generation performance and service life in the power generation process. To solve the problems of low detection efficiency, low accuracy, and difficulty of distributed hot spot detecti...

(This article belongs to the Special Issue Fiber Grating Sensors: Design, Fabrication, and Application)
  • Article
  • Open Access
6 Citations
3,652 Views
16 Pages

4 September 2019

In visible light communications (VLC), dimming control constitutes an indispensable technique to comply with various illumination necessities and with different energy consumption constraints. Therefore, a novel dimming compatible hybrid optical orth...

(This article belongs to the Special Issue Optical Communications and Networking: Prospects in Industrial Applications)
  • Article
  • Open Access
15 Citations
7,049 Views
20 Pages

25 April 2019

Single-sideband (SSB) modulation through Hilbert transformation has successfully transmitted data using only half the bandwidth of the traditional scheme for the same amount of contained information. Toward this end, the four single-sideband (4-SSB)...

(This article belongs to the Section Sensor Networks)
  • Article
  • Open Access
9 Citations
3,598 Views
16 Pages

10 June 2022

A growing leaf can be divided into three sections: division zone, elongation zone, and maturation zone. In previous studies, low nitrogen (LN) inhibited maize growth and development, especially leaf growth; however, the gene expression in response to...

(This article belongs to the Section Plant Molecular Biology)
  • Article
  • Open Access
21 Citations
11,132 Views
15 Pages

OFDM with Index Modulation for Asynchronous mMTC Networks

  • Seda Doğan,
  • Armed Tusha and
  • Hüseyin Arslan

21 April 2018

One of the critical missions for next-generation wireless communication systems is to fulfill the high demand for massive Machine-Type Communications (mMTC). In mMTC systems, a sporadic transmission is performed between machine users and base station...

(This article belongs to the Special Issue Emerging Methodologies and Practical Solutions for M2M and D2D Communications in the Internet of Things Era)
  • Article
  • Open Access
2 Citations
3,021 Views
12 Pages

A Novel 64 QAM-OFDM Optical Access System Based on Bit Reconstruction

  • Rongzhen Xie,
  • Di Wu,
  • Qi Zhang,
  • Haipeng Yao,
  • Xishuo Wang,
  • Xiangjun Xin,
  • Feng Tian,
  • Qinghua Tian,
  • Fu Wang and
  • Jinkun Jiang
  • + 2 authors

This paper proposes a novel orthogonal frequency division multiplexing (OFDM) optical access scheme based on bit reconstruction. In this method, correlation is introduced into the data information of optical line terminals (OLT) through the logical c...

  • Article
  • Open Access
6 Citations
2,900 Views
19 Pages

A Hybrid Deep Learning Framework for OFDM with Index Modulation Under Uncertain Channel Conditions

  • Md Abdul Aziz,
  • Md Habibur Rahman,
  • Rana Tabassum,
  • Mohammad Abrar Shakil Sejan,
  • Myung-Sun Baek and
  • Hyoung-Kyu Song

15 November 2024

Index modulation (IM) is considered a promising approach for fifth-generation wireless systems due to its spectral efficiency and reduced complexity compared to conventional modulation techniques. However, IM faces difficulties in environments with u...

(This article belongs to the Special Issue Advanced Algorithms in Wireless Communication and Internet of Things (IoT))
  • Article
  • Open Access
1 Citations
464 Views
30 Pages

Multi-Layer Encryption for Secure 6G MIMO-AFDM-IM ISAC Systems

  • Ruiqi Cao,
  • Yanqun Tang,
  • Caiqin Li,
  • Sitong Li,
  • Yicong Su,
  • Xinyan Ma,
  • Wei Li and
  • Miao Zhang

18 June 2026

With the emergence of mobile sixth-generation (6G) integrated sensing and communication (ISAC) scenarios, conventional multicarrier waveforms face challenges in maintaining reliable communication and robust physical-layer security. In this paper, we...

(This article belongs to the Special Issue Privacy and Security for Wireless Sensor Networks: Technologies and Strategies)
  • Article
  • Open Access
10 Citations
5,411 Views
15 Pages

7 April 2019

In this paper, we present a study of bit error rate (BER) for orthogonal frequency division multiplexing/offset quadrature phase shift keying (OFDM/OQPSK) and OFDM/offset quadrature amplitude modulation (OQAM) systems with an isotropic orthogonal tra...

(This article belongs to the Special Issue Underwater Acoustic Communications and Networks)
  • Article
  • Open Access
7 Citations
2,807 Views
16 Pages

Space division multiplexing elastic optical networks (SDM-EONs) based on multi-core fiber (MCF) technologies have attracted widespread attention as a potential means of enhancing large capacity and high flexibility. However, inter-core crosstalk (XT)...

  • Article
  • Open Access
7 Citations
2,768 Views
17 Pages

22 September 2022

As a multi-carrier modulation technique, a high peak-to-average power ratio (PAPR) is a common issue suffered by orthogonal frequency division multiplexing with index modulation (OFDM-IM) due to its system structure. High PAPR may cause signal distor...

(This article belongs to the Section Signal and Data Analysis)
  • Article
  • Open Access
14 Citations
3,685 Views
11 Pages

In this letter, we present the first attempt of active light-emitting diode (LED) indexes estimating for the generalized LED index modulation optical orthogonal frequency-division multiplexing (GLIM-OFDM) in visible light communication (VLC) system b...

(This article belongs to the Special Issue Visible Light Communication (VLC))

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