Advanced Search Results For "ORTHOGONAL frequency division multiplexing"
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Flexible Data Rate Allocation Using Non-Orthogonal Multiple Access (NOMA) in a Mode Division Multiplexing (MDM) Optical Power Splitter for System-on-Chip Networks.
Publication Type: Academic Journal
Source(s): Sensors (14248220). Aug2023, Vol. 23 Issue 16, p7259. 14p.
Abstract: We put forward and demonstrate a silicon photonics (SiPh)-based mode division multiplexed (MDM) optical power splitter that supports transverse-electric (TE) single-mode, dual-mode, and triple-mode (i.e., TE0, TE1, and TE2). An optical power splitter i...
Heterogeneous Network Switching Strategy Based on Communication Blind Area Dwell Time.
Publication Type: Academic Journal
Source(s): Sensors (14248220). Jul2023, Vol. 23 Issue 13, p6166. 13p.
Abstract: The limitation of indoor visible light coverage and the attenuation of its signal when propagating in line-of-sight has seriously affected the stable communication of receiving devices when users move randomly and also aggravated the power consumption ...
A Double-Threshold Channel Estimation Method Based on Adaptive Frame Statistics.
Publication Type: Academic Journal
Source(s): Mathematics (2227-7390). Aug2023, Vol. 11 Issue 15, p3342. 22p.
Abstract: Channel estimation is an important module to enhance the performance of orthogonal frequency division multiplexing (OFDM) systems. However, the presence of a large amount of noise in time-varying multipath fading channels significantly affects the chan...
Maximal Ratio Combining Detection in OFDM Systems with Virtual Carriers Over V2V Channels.
Publication Type: Academic Journal
Source(s): Sensors (14248220). Aug2023, Vol. 23 Issue 15, p6728. 11p.
Abstract: This paper examines the performance of orthogonal frequency division multiplexing (OFDM) systems for vehicle-to-vehicle (V2V) communication channels. More specifically, a doubly selective channel under high intercarrier interference (ICI) is considered...
An Improved SAMP Algorithm for Sparse Channel Estimation in OFDM System.
Publication Type: Academic Journal
Source(s): Sensors (14248220). Aug2023, Vol. 23 Issue 15, p6668. 14p.
Abstract: Channel estimation of an orthogonal frequency division multiplexing (OFDM) system based on compressed sensing can effectively reduce the pilot overhead and improve the utilization rate of spectrum resources. The traditional SAMP algorithm with a fixed ...
Neural-Network-Based Equalization and Detection for Underwater Acoustic Orthogonal Frequency Division Multiplexing Communications: A Low-Complexity Approach.
Publication Type: Academic Journal
Source(s): Remote Sensing. Aug2023, Vol. 15 Issue 15, p3796. 19p.
Abstract: The performance of the underwater acoustic (UWA) orthogonal frequency division multiplexing (OFDM) system is often restrained by time-varying channels with large delays. The existing frequency domain equalizers do not work well because of the high comp...
LiNEV: Visible Light Networking for Connected Vehicles.
Publication Type: Academic Journal
Source(s): Photonics. Aug2023, Vol. 10 Issue 8, p925. 13p.
Abstract: 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 dio...
A Novel 64 QAM-OFDM Optical Access System Based on Bit Reconstruction.
Publication Type: Academic Journal
Source(s): Photonics. Aug2023, Vol. 10 Issue 8, p879. 12p.
Abstract: 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 cod...
Integrated OFDM Waveform Design for RadCom System-Based Signal-to-Clutter Noise Ratio Maximization.
Publication Type: Academic Journal
Source(s): Remote Sensing. Jul2023, Vol. 15 Issue 14, p3554. 17p.
Abstract: Integrated Radar and Communication (RadCom) Systems have become more crucial ingredients in the next generation of networks due to numerous types of characteristics, including reducing the system size, minimizing power consumption, and mitigating spect...
Adaptive-Mode PAPR Reduction Algorithm for Optical OFDM Systems Leveraging Lexicographical Permutations.
Publication Type: Academic Journal
Source(s): Electronics (2079-9292). Jul2023, Vol. 12 Issue 13, p2797. 13p.
Abstract: In direct current optical orthogonal frequency division multiplexing (DCO-OFDM) systems, the high peak-to-average power ratio (PAPR) has been a significant challenge. Recently, lexicographical symbol position permutation (LSPP) using random permutation...