Power efficient back-off reduction through polyphase filtering magnitude modulation

M Gomes, V Silva, F Cercas… - IEEE communications …, 2009 - ieeexplore.ieee.org
A multistage polyphase magnitude modulation (MPMM) technique is proposed for single
carrier (SC) modulations, to efficiently reduce the peak-to-average power ratio (PAPR) of the …

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 sha** filters, in order …

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 …

A new trellis sha** design for peak power reduction of SC-FDMA signals with high-order QAM

T Lee, H Ochiai - IEEE Transactions on Vehicular Technology, 2016 - ieeexplore.ieee.org
Single-carrier frequency-division multiple-access (SC-FDMA) has been adopted as the
uplink radio access scheme of the fourth-generation mobile wireless communication system …

PAPR reduction for systems using SRRC filters based on modified ACE

F Yang, K Yan, C Pan, J Song - IEICE Transactions on …, 2013 - search.ieice.org
Square root-raised-cosine (SRRC) filters are used in many systems for spectrum sha**,
which leads to a high peak-to-average power ratio (PAPR). Nevertheless, some applications …

Analytical analysis of polyphase magnitude modulation method's performance

M Gomes, V Silva, F Cercas… - 2010 IEEE International …, 2010 - ieeexplore.ieee.org
An efficient multistage polyphase magnitude modulation (MPMM) scheme was recently
proposed to solve the problem of controlling the envelope's power peak of single carrier …

Polyphase magnitude modulation for peak power control

M Gomes, F Cercas, V Silva… - 2009 17th European …, 2009 - 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 sha** filters, in order …

Apparatus and method for soft demap**

KT Bae, KY Kim, H Yang - US Patent 8,831,123, 2014 - Google Patents
Provided is a soft demap** apparatus that may detect a log likelihood ratio (LLR) value of
a quadrature amplitude modulation (QAM) signal, using a shifted table scheme, may …

Low bback-off 16-APSK transmission using magnitude modulation and symbol quantization

M Gomes, V Silva, F Cercas… - 2008 IEEE International …, 2008 - ieeexplore.ieee.org
QAM and APSK are used to meet the ever growing demand for higher data rates in
bandwidth limited satellite channels whose main constraint to communication capacity is a …

Real-time LUT-less magnitude modulation for peak power control of single carrier RRC filtered signals

M Gomes, V Silva, F Cercas… - 2009 IEEE 10th …, 2009 - ieeexplore.ieee.org
In this paper a novel multistage polyphase magnitude modulation (MPMM) scheme is
proposed for efficiently controlling the envelope's peak power of single carrier band limited …