Multi-user detection for the downlink of NOMA systems with multi-antenna schemes and power-efficient amplifiers

FC Ribeiro, J Guerreiro, R Dinis, F Cercas… - Physical …, 2019 - Elsevier
Non-orthogonal multiple access (NOMA) schemes have been recognized as a promising
multiple access method for the fifth generation (5G) communication systems. In NOMA …

A method for improving power distribution characteristics of space time block codes

V Abbasi, MG Shayesteh - China Communications, 2020 - ieeexplore.ieee.org
Improving power distribution characteristics of space time block codes (STBCs), namely
peak to average power ratio (PAPR), average to minimum power ratio (Ave/min), and …

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 …

Power efficient mimo sc-fde transmission using magnitude modulation techniques

J Gante, M Gomes, R Dinis, V Silva… - 2014 IEEE 80th …, 2014 - ieeexplore.ieee.org
Polyphase magnitude modulation (MM) has been shown to be a robust and effortless mean
to improve the efficiency of a transmitter's high power amplifier (HPA), due to the real-time …

Ring-type magnitude modulation for LINC: Paving the road for better efficiency

AJR Simões - 2014 - search.proquest.com
The rising demand for energy efficiency, namely on the uplink channel, is severely restricted
by the linear input-output power amplification requirements, which is normally performed by …

Iterative decoding techniques for ring-type magnitude modulated signals

M Castanheira, A Simões, M Gomes… - 2016 IEEE …, 2016 - ieeexplore.ieee.org
The expectations for fifth generation (5G) systems involve handling huge throughputs
together with power consumption. In order to address this issue, massive multiple-input and …

A multi-antenna iterative frequency-domain detection for power-efficient NOMA schemes

J Guerreiro, FC Ribeiro, R Dinis… - 2019 PhotonIcs & …, 2019 - ieeexplore.ieee.org
The transmitted signals in non-orthogonal multiple access (NOMA) schemes can have
substantial envelope fluctuations, not to mention the inherent high interference levels. This …