TY - JOUR
T1 - Multi-user detection for the downlink of NOMA systems with multi-antenna schemes and power-efficient amplifiers
AU - Ribeiro, Filipe Casal
AU - Guerreiro, João
AU - Dinis, Rui
AU - Cercas, Francisco
AU - Jayakody, Dushantha Nalin K.
N1 - info:eu-repo/grantAgreement/FCT/5876/147328/PT#
European Regional Development Fund (FEDER), through the Competitiveness and Internationalization Operational Program (COMPETE 2020) of the Portugal 2020 framework, Regional OP Centro (POCI-01-0145-FEDER-030588).
Regional OP Lisboa (Lisboa-01-0145-FEDER-03058) and by FCT/MEC through national funds, under Project PES3N (SAICT-45-2017-02).
This work was also funded, in part, by the framework of Competitiveness Enhancement Program of the National Research Tomsk Polytechnic University, Russia.
PY - 2019/4/1
Y1 - 2019/4/1
N2 - Non-orthogonal multiple access (NOMA) schemes have been recognized as a promising multiple access method for the fifth generation (5G) communication systems. In NOMA, multiple users can share the same physical channel, which allows for a substantial increase in capacity gains when comparing to conventional orthogonal multiple access (OMA) techniques. This paper considers the downlink transmission of NOMA schemes combined with single-carrier (SC) signals. We present a multi-antenna transmission technique that is compatible with highly efficient power amplifiers without requiring any pre-processing. Furthermore, a multi-user detection scheme based on iterative frequency-domain equalization (FDE) is presented. We show that besides the high power-efficiency of the transmission scheme, the system's performance can be close to the matched filter bound (MFB).
AB - Non-orthogonal multiple access (NOMA) schemes have been recognized as a promising multiple access method for the fifth generation (5G) communication systems. In NOMA, multiple users can share the same physical channel, which allows for a substantial increase in capacity gains when comparing to conventional orthogonal multiple access (OMA) techniques. This paper considers the downlink transmission of NOMA schemes combined with single-carrier (SC) signals. We present a multi-antenna transmission technique that is compatible with highly efficient power amplifiers without requiring any pre-processing. Furthermore, a multi-user detection scheme based on iterative frequency-domain equalization (FDE) is presented. We show that besides the high power-efficiency of the transmission scheme, the system's performance can be close to the matched filter bound (MFB).
KW - Efficient power amplification
KW - Iterative frequency-domain detection
KW - Multi-antenna systems
KW - NOMA
KW - SC-FDE
UR - http://www.scopus.com/inward/record.url?scp=85060550940&partnerID=8YFLogxK
U2 - 10.1016/j.phycom.2019.01.003
DO - 10.1016/j.phycom.2019.01.003
M3 - Article
AN - SCOPUS:85060550940
SN - 1874-4907
VL - 33
SP - 199
EP - 205
JO - Physical Communication
JF - Physical Communication
ER -