Low-Complexity Equalisers for Offset Constellations in Massive MIMO Schemes

被引：2

作者：

Bento, Pedro ^{[1
,2
]}

Pereira, Andreia ^{[1
,2
]}

Dinis, Rui ^{[3
,4
]}

Comes, Marco ^{[1
,2
]}

Silva, Vitor ^{[1
,2
]}

机构：

[1] Univ Coimbra, Inst Telecomunicacoes, P-3030290 Coimbra, Portugal

[2] Univ Coimbra, Dept Elect & Comp Engn, P-3030290 Coimbra, Portugal

[3] Univ Tecn Lisboa, Inst Telecomunicacoes, Lisbon, Portugal

[4] Univ Nova Lisboa, Fac Ciencias & Tecnol, P-2829516 Caparica, Portugal

来源：

IEEE ACCESS | 2019年 / 7卷

关键词：

Offset modulations; massive MIMO; mmWave communications; frequency-domain receivers; FREQUENCY-DOMAIN EQUALIZATION; EFFICIENT TRANSMISSION TECHNIQUE; SINGLE-CARRIER; WIRELESS COMMUNICATIONS; TIME;

D O I：

10.1109/ACCESS.2019.2927090

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

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 amplifiers, which can have low-implementation complexity and high amplification efficient, 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.

引用

页码：94373 / 94390

页数：18

共 31 条

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