Comparison between analog radio-over-fiber and sigma delta modulated radio-over-fiber

L Breyne, G Torfs, X Yin, P Demeester… - IEEE Photonics …, 2017 - ieeexplore.ieee.org
With the continuously increasing demand of cost effective, broadband wireless access, radio-
over-fiber (RoF) starts to gain more and more momentum. Various techniques already exist …

A fully parallel architecture for designing frequency-agile and real-time reconfigurable FPGA-based RF digital transmitters

DC Dinis, RF Cordeiro, ASR Oliveira… - IEEE Transactions …, 2017 - ieeexplore.ieee.org
Real-time frequency agility is one of the key limitations of current all-digital transmitters
(ADTs). In this paper, to address this problem, an ADT based on direct-RF generation is …

Experimental demonstration of MASH based sigma delta radio over fiber system for 5G C-RAN downlink

MU Hadi, MU Hadi, N Aslam, R Ali… - Journal of Optical …, 2022 - degruyter.com
Abstract Sigma Delta Radio over Fiber (S-DRoF) systems are looked upon as an enabling
technology due to their advantages that comes due to combination of analog and digital …

Performance appraisal of sigma delta modulated radio over fiber system

MU Hadi, N Aslam, H Jung - Journal of Optical Communications, 2022 - degruyter.com
Radio over fiber (RoF) is a promising solution for the next-generation wireless networks
including fifth-generation Cloud/Centralized Radio Access Network (C-RAN). There exists a …

A novel transmitter architecture for spectrally-precoded OFDM

M Mohamad, R Nilsson… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
Frequency nulling spectral precoding is an approach that suppresses the out-of-band
emission in orthogonal frequency division (OFDM) systems. In this paper, we discuss the …

A RF pulse-width and pulse-position modulator IC in 28 nm FDSOI CMOS

M Grözing, J Digel, T Veigel, R Bieg… - 2018 IEEE Nordic …, 2018 - ieeexplore.ieee.org
A pulse-width and pulse-position modulator (PWPM) IC for RF carriers from 170 MHz to 2.8
GHz is presented. The IC features a digital 5 bit pulse-width (PW) and 6 bit pulse-center (PC) …

A dual-band RF all-digital transmitter based on MPWM encoding

SY Yang, J Yang, LY Huang, JL Bai… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Radio frequency (RF) all-digital transmitter (ADT) is one of the most attractive techniques in
the next-generation RF transceivers, especially in the carrier aggregation and multiband …

An agile LUT-based all-digital transmitter

J Yang, SY Yang, ZH Chen… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
In all-digital transmitters (ADTs), delta-sigma modulation (DSM) is the most popular
encoding method. However, implementing DSM-ADT on a field-programmable gate array …

From Circuits to SoC Processors: Arithmetic Approximation Techniques & Embedded Computing Methodologies for DSP Acceleration

V Leon - arXiv preprint arXiv:2302.12194, 2023 - arxiv.org
The computing industry is forced to find alternative design approaches and computing
platforms to sustain increased power efficiency, while providing sufficient performance …

Baseband model for uniformly sampled RF-PWM

F Chierchie, GJ González, JI Morales… - … on Circuits and …, 2020 - ieeexplore.ieee.org
A baseband model for a polar RF modulator based on uniform sampling (US) pulse width
modulation (PWM) is presented. RF-PWM allows to encode a complex baseband signal …