Results 51 to 60 of about 498 (143)
Topological Berry Antenna on a Silicon Chip for Terahertz Wireless Communication
Advanced Photonics Research, Volume 6, Issue 9, September 2025.The on‐chip topological Berry antenna for 6G to Xth‐generation wireless communication is designed via integrating various Berry curvatures for an enhanced antenna aperture and radiation gain. This THz antenna has demonstrated a maximum gain of 17 dBi and chip‐to‐chip wireless communications at 20 Gbps over a distance of 15 cm.
Sonu Kumar +8 more
wiley +1 more source
On the Optimization of Iterative Clipping and Filtering for PAPR Reduction in OFDM Systems
IEEE Access, 2017 Orthogonal frequency division multiplexing (OFDM) offers spectral efficiency advantage, however, it is limited by peak-to-average power (PAPR) problem. The PAPR can be reduced using iterative clipping and filtering (ICF) scheme but requires that the same
Kelvin Anoh +2 more
doaj +1 more source
OFDM Waveform Design for Joint Radar-communication Based on Data Distortion
Leida xuebaoOrthogonal Frequency Division Multiplexing (OFDM) waveform design is one of the key physical layer technologies for achieving joint radar-communication.
Yan LIU, Xianrong WAN, Jianxin YI
doaj +1 more source
Carrier Aggregated Radio-Over-Fiber Downlink for Achieving 2Gbps for 5G Applications
IEEE Access, 2019 We demonstrate experimentally, for the first time, a distributed digital predistortion model for radio-over-fiber (RoF) downlink suitable for broadband 5G signals.
Mahmood Noweir +3 more
doaj +1 more source
Results in EngineeringThis paper presents a novel approach of integrating an error vector magnitude with hierarchical modulation in which HM dynamically adjusts modulation schemes to optimize spectral efficiency under varying channel conditions.
U. Shyamala Devi, R.K. Mugelan
doaj +1 more source
Dual Polarization Optical Slicing for C-RAN in 5G Networks based on Radio-over-Fiber
Revista UIS IngenieríasThis paper investigates the potential of a dual polarized optical spectral slicing system to enable high-capacity optical links in the Cloud-Radio Access Network (C-RAN) segment based on Radio-over-Fiber (RoF) of a 5G network.
Gustavo Puerto-Leguizamón +1 more
doaj +1 more source
Parallel PWMs Based Fully Digital Transmitter with Wide Carrier Frequency Range
The Scientific World Journal, 2013 The carrier-frequency (CF) and intermediate-frequency (IF) pulse-width modulators (PWMs) based on delay lines are proposed, where baseband signals are conveyed by both positions and pulse widths or densities of the carrier clock.
Bo Zhou +4 more
doaj +1 more source
IEEE Photonics Journal, 2014 A system involving W-band (75-110 GHz) optical millimeter (mm)-wave generation using the external optical modulator (EOM) in a radio-over-fiber (RoF) link is presented for satisfying the requirements for multi-gigabit-per-second data rates.
S. E. Alavi +6 more
doaj +1 more source
Adaptive Modulation and Coding Using Neural Network Based SNR Estimation
IEEE Access, 2019 In this paper, we propose a novel Adaptive Modulation and Coding (AMC) scheme enabled by Artificial Neural Network (ANN) aided Signal-to-Noise power Ratio (SNR) estimation. The Power Spectral Density (PSD) values are trained for SNR classification and it
Shun Kojima +2 more
doaj +1 more source
IEEE Photonics Journal, 2019 In the coherent long-reach passive optical networks (LRPON), it is crucial to propose cost-effective digital signal processing (DSP) technologies to reduce the overall complexity and power consumption.
Jin Li, Danshi Wang, Min Zhang
doaj +1 more source