Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/107017
Title: Low-Complexity Equalisers for Offset Constellations in Massive MIMO Schemes
Authors: Bento, Pedro 
Pereira, Andreia 
Dinis, Rui 
Gomes, Marco 
Silva, Vitor 
Keywords: Offset modulations; massive MIMO; mmWave communications; frequency-domain receivers
Issue Date: 2019
Publisher: IEEE
Serial title, monograph or event: IEEE Access
Volume: 7
Abstract: Massive multi-input multi-output (m-MIMO) schemes require low-complexity implementations at both the transmitter and the receiver side, especially for systems operation at millimeter wave (mmWave) bands. In this paper, we consider the use of offset constellations in m-MIMO systems operating at mmWave frequencies. These signals are designed to have either an almost constant envelope or be decomposed as the sum of constant-envelope signals, making them compatible with strongly nonlinear power ampli ers, which can have low-implementation complexity and high ampli cation ef cient, making them particularly interesting for mmWave communications. We design and evaluate low-complexity frequency-domain receivers for offset signals. It is shown that the proposed receivers can have excellent performance/complexity trade-offs in m-MIMO scenarios, making them particularly interesting for future wireless systems operating at mmWave bands.
URI: https://hdl.handle.net/10316/107017
ISSN: 2169-3536
DOI: 10.1109/ACCESS.2019.2927090
Rights: openAccess
Appears in Collections:FCTUC Eng.Electrotécnica - Artigos em Revistas Internacionais
I&D IT - Artigos em Revistas Internacionais

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