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
Project: This work was supported in part by the European Regional Development Fund (FEDER), through the Competitiveness and Internationalization Operational Program of the Portugal 2020 Framework, in part by the Regional OP Centro under Grant POCI-01-0145- FEDER-030588, in part by the Regional OP Lisboa under Grant Lisboa-01-0145- FEDER-03058, in part by the FCT/MEC through national funds of MASSIVE5G Project under Grant SAICT-45-2017-02 and PES3N Project under Grant 2018-SAICT-45-2017-POCI-01-0145-FEDER-030629, in part by the UID/EEE/50008/2019 Project, and in part by the FCT Ph.D. under Grant SFRH/BD/108522/2015. 
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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