Design of quadrature mirror filter bank using polyphase components based on optimal fractional derivative constraints

K Baderia, A Kumar, GK Singh - AEU-International Journal of Electronics …, 2015 - Elsevier
This paper proposes an optimal design of two-channel quadrature mirror filter (QMF) bank
using optimized polyphase component enforcing very efficient global swarm optimization …

Magnitude modulation for VSAT's low back-off transmission

M Gomes, F Cercas, V Silva… - … of Communications and …, 2010 - ieeexplore.ieee.org
This paper addresses the problem of controlling the envelope's power peak of single carrier
modulated signals, band limited by root-raised cosine (RRC) pulse shaping filters, in order …

Error rate analysis of M‐PSK with magnitude modulation envelope control

M Gomes, R Dinis, V Silva, F Cercas… - Electronics …, 2013 - Wiley Online Library
Magnitude modulation (MM) envelope control is an efficient way of reducing the peak‐to‐
average power ratio (PAPR) of single‐carrier (SC) signals and improves an SC system's …

Magnitude modulation for peak power control in single carrier communication systems

MAC Gomes - 2010 - search.proquest.com
Peak-to-average power ratio (PAPR) reduction is of major concern in most
telecommunication systems whose transmission capacity is limited by the transmitter's non …

Measuring the magnitude of envelope fluctuations: Should we use the PAPR?

P Bento, J Nunes, M Gomes, R Dinis… - 2014 IEEE 80th …, 2014 - ieeexplore.ieee.org
The PAPR (Peak-to-Average Power Ratio) is widely employed to measure the magnitude of
the envelope fluctuations of a given signal. It is particularly used to define the required …

Simplified and accurate BER analysis of magnitude modulated M‐PSK signals

P Bento, A Pereira, M Gomes, R Dinis… - IET …, 2019 - Wiley Online Library
In this work, the authors consider phase shift keying (PSK)‐type signals with very compacted
spectrum and low envelope fluctuations obtained through the use of magnitude modulation …

Ring-type magnitude modulation for LINC: a pragmatic approach to the efficiency challenge

A Simões, M Castanheira, M Gomes… - IEEE Transactions …, 2017 - ieeexplore.ieee.org
This paper considers the use of the linear amplification with nonlinear components (LINC)
technique for the power amplification of spectrally compact offset quadrature phase shift …

Deep Learning-based Demodulator for Magnitude Modulated Signals

D Henriques, M Gomes, V Silva… - 2023 IEEE 97th …, 2023 - ieeexplore.ieee.org
The current applications' requirement for higher data rates typically results in an increase in
the signal's Peak-to-Average Power Ratio (PAPR), which harms the transmitter's Power …

Magnitude modulation applied to LINC transmitters: Paving the road for better efficiency

A Simões, M Gomes, R Dinis, V Silva… - 2014 IEEE 80th …, 2014 - ieeexplore.ieee.org
The linear amplification with nonlinear components (LINC) amplification concept is very
important on the developing of the modern mobile and satellite communications systems …

Low-complexity equalisers for offset constellations in massive MIMO schemes

P Bento, A Pereira, R Dinis, M Gomes, V Silva - IEEE Access, 2019 - ieeexplore.ieee.org
Massive multi-input-multi-output (m-MIMO) schemes require low-complexity
implementations at both the transmitter and the receiver side, especially for systems …