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

Filipe Casal Ribeiro, João Guerreiro, Rui Dinis, Francisco Cercas, Dushantha Nalin K. Jayakody

Результат исследований: Материалы для журналаСтатьярецензирование

5 Цитирования (Scopus)

Аннотация

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).

Язык оригиналаАнглийский
Страницы (с-по)199-205
Число страниц7
ЖурналPhysical Communication
Том33
DOI
СостояниеОпубликовано - 1 апр 2019

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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