Spectrum-Efficient Triple-Layer Hybrid Optical OFDM for IM/DD-Based Optical Wireless Communications [PDF]
IEEE Access, 2020 In this paper, a triple-layer hybrid optical orthogonal frequency division multiplexing (THO-OFDM) for intensity modulation with direct detection (IM/DD) systems with a high spectral efficiency is proposed.
Tian Zhang +5 more
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Sparse Orthogonal Circulant Transform Multiplexing for Coherent Optical Fiber Communication [PDF]
IEEE Photonics Journal, 2018 This paper introduces a new multicarrier system, named sparse orthogonal circulant transform multiplexing (S-OCTM), for optical fiber communication. This technique uses an inverse sparse orthogonal circulant transform (S-OCT) matrix, which is simple and ...
Yukui Yu +4 more
doaj +3 more sources
OFDM SIGNAL ENERGY CHARACTERISTICS RESEARCH IN CHANNEL WITH PERMANENT PARAMETERS [PDF]
Information and Telecommunication Sciences, 2013 The simulation model for OFDM (Orthogonal Frequency Division Multiplexing) signal energy characteristics research is developed. The OFDM signal vector-phase states are examined. The momentary amplitudes distribution function is obtained.
Leonid Uryvskyi, Serhii Osypchuk
doaj +2 more sources
Generalized Filter Bank Orthogonal Frequency Division Multiplexing: Low-Complexity Waveform for Ultra-Wide Bandwidth and Flexible Services. [PDF]
Entropy (Basel)Terahertz (THz) communication is a crucial technique in sixth generation (6G) mobile networks, which allow for ultra-wide bandwidths to enable ultra-high data rate wireless communication.
Xin Y +6 more
europepmc +2 more sources
A Survey on Physical Layer Techniques and Challenges in Underwater Communication Systems
Journal of Marine Science and Engineering, 2023 In the past decades, researchers/scientists have paid attention to the physical layer of underwater communications (UWCs) due to a variety of scientific, military, and civil tasks completed beneath water.
Naveed Ur Rehman Junejo +6 more
doaj +1 more source
ADAPTIVE CYCLIC PREFIX LENGTH FOR CONVOLUITIONAL CODE OFDM SYSTEM IN FREQUENCY SELECTIVE CHANNEL
Journal of Engineering, 2023 Orthogonal Frequency Division Multiplexing (OFDM) is one of recent years multicarrier modulation used in order to combat the Inter Symbol Interference (ISI) introduced by frequency selective mobile radio channel.
Ashwaq A. Abed Aljanaby +1 more
doaj +1 more source
IEEE Access, 2022 In the scenario of underwater acoustic communication, Orthogonal Frequency Division Multiplexing (OFDM) is widely used for its high spectral efficiency and high transmission rate.
Bai Yiqi, He Chuanlin
doaj +1 more source
Orthogonal Frequency Division Multiplexing (OFDM) Development and Teaching Platform [PDF]
2011 ASEE Annual Conference & Exposition Proceedings, 2020 Orthogonal Frequency Division Multiplexing (OFDM) Development and Teaching PlatformThe computer engineering technology program has a very robust course sequence in digital andembedded systems design with a strong emphasis on hands-on experience for the students.
Antonio Francisco Mondragon-Torres +2 more
openaire +2 more sources
FDSS-Based DFT-s-OFDM for 6G Wireless Sensing
Sensors, 2023 Integrated sensing and communications (ISAC) is emerging as a key technology of 6G. Owing to the low peak-to-average power ratio (PAPR) property, discrete Fourier transform spread orthogonal frequency-division multiplexing (DFT-s-OFDM) is helpful to ...
Lu Chen +5 more
doaj +1 more source
Analysis of GFDM as a robust 5G communication technique in noisy environment [PDF]
, 2020 One of the challenges of modulation techniques used in Fifth-Generation (5G) is their robustness in noisy environment. Conventional Orthogonal Frequency Division Multiplexing (OFDM) cannot be considered as a 5G waveform in its original form because of ...
Ayaz, Ferheen, Ayaz, Saqib
core +1 more source