Results 21 to 30 of about 4,370 (221)

Machine Learning-Based Digital Pre-Distortion Scheme for RoF Systems and Experimental 5G mm-waves Fiber-Wireless Implementation [PDF]

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications, 2023
The advent of the 5th generation of mobile networks brought a large number of new use case and applications to be supported by the physical layer (PHY), which must be more flexible than all previous radio access networks (RAN).
Luiz A. M. Pereira   +3 more
doaj   +1 more source

Optimized MSA DPD method for improving 5G multiband optical fronthaul performance

open access: yesMicrowave and Optical Technology Letters, Volume 65, Issue 12, Page 3326-3332, December 2023., 2023
Abstract A modified optimized magnitude‐selective affine (OMSA) model‐based digital predistortion (DPD) is presented that introduces the weighting function into our earlier proposed magnitude‐selective affine (MSA) method with an aim to further reduce the complexity overheads without affecting performance compared to the MSA method. This model utilizes
Muhammad Usman Hadi   +2 more
wiley   +1 more source

Digital backpropagation based on binary logarithmic step size distribution for fibre non‐linearity compensation

open access: yesThe Journal of Engineering, Volume 2023, Issue 12, December 2023., 2023
This work proposes a low‐complexity digital backpropagation (DBP) implementation approach for high data rate optical transmission using a binary logarithmic step size method. The proposed scheme shows significant performance improvements over linear compensation and other DBP techniques in a 2400 km 112 Gbit/s DP‐16 QAM system, achieving a high ...
Albert Dede   +2 more
wiley   +1 more source

4 × 4 MIMO Fiber-Wireless System with RoF Transmission Capability [PDF]

open access: yesITM Web of Conferences, 2023
Transport networks, particularly fronthaul systems are facing substantial issues as a result of the expansion of radio access technologies (RATs) in 5G and beyond networks. Due to the difficulties and high expense of installing fiber links, a traditional
A U Athira, Zacharias Joseph
doaj   +1 more source

A novel method for combating dispersion induced power fading in dispersion compensating fiber [PDF]

open access: yes, 2013
\u3cp\u3eWe experimentally investigate the performance of 60 GHz double sideband (DSB) radio over fiber (RoF) links that employ dispersion compensating fiber (DCF). Error free transmission of 3 Gbps signals over 1 m of wireless distance is reported.
Alexander Lebedev   +17 more
core   +1 more source

Quality Improvement on RoF 5G Fronthaul System Design at Millimeter-wave with EDFA and FBG Techniques

open access: yesJurnal Elkomika, 2023
ABSTRAK Jaringan seluler terkini membutuhkan kapasitas tinggi dan latensi rendah di fronthaul yang dapat didukung oleh radio over fiber (RoF) dengan gelombang milimeter.
CATUR APRIONO   +2 more
doaj   +1 more source

An effective data communication community establishment scheme in opportunistic networks

open access: yesIET Communications, Volume 17, Issue 12, Page 1354-1367, July 2023., 2023
We design an effective data communication community establishment scheme. By adding a data information flow attribute to each user, using the dynamic feedback adjustment mechanism and combining the entire communication community, the user's data information flow concentration is controlled at a relatively low level.
Juan Huang, Fangfang Gou, Jia Wu
wiley   +1 more source

Performance Analysis of Modulation Formats for Next Generation RoF Systems

open access: yesIEEE Access, 2021
Radio over fiber (RoF) has found to be one of the most effective communication techniques. It has the tendency to incorporate both optical fiber and free space radio paths.
Haleema Khalil   +6 more
doaj   +1 more source

Verification of Applicability of 90 GHz Band Millimeter‐Wave for Obstacle Detection to Railway

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, Volume 18, Issue 6, Page 960-969, May 2023., 2023
Abstract Obstacles on railway tracks are a factor hindering safe and stable operation. For this reason, obstacle detection systems have been introduced at level crossings, slopes and under platforms. However, they have been introduced only in limited sections for limited applications.
Kazuki Nakamura   +8 more
wiley   +1 more source

Fiber link design considerations for cloud-Radio Access Networks [PDF]

open access: yes, 2014
Analog radio over fiber (RoF) links may offer advantages for cloud-Radio Access Networks in terms of component cost, but the behavior of the distortion with large numbers of subcarriers needs to be understood. In this paper, this is presented in terms of
Assimakopoulos, Philippos   +3 more
core   +1 more source

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