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J. Sens. Actuator Netw. 2018, 7(2), 17;

Reduced Complexity Detection in MIMO Systems with SC-FDE Modulations and Iterative DFE Receivers

IT—Instituto de Telecomunicações, Av. Rovisco Pais 1, Torre Norte, piso 10, 1049-001 Lisboa, Portugal
UAL—Universidade Autónoma de Lisboa, Rua Santa Marta 56, Palácio Dos Condes Do Redondo, 1169-023 Lisboa, Portugal
FCT—Universidade Nova de Lisboa, Monte de Caparica, 2829-516 Caparica, Portugal
ISCTE—Instituto Universitário de Lisboa, Av. das Forças Armadas 376, 1600-077 Lisboa, Portugal
DETI—Universidade de Aveiro, 3810-193 Aveiro, Portugal
Author to whom correspondence should be addressed.
Received: 5 January 2018 / Revised: 20 March 2018 / Accepted: 25 March 2018 / Published: 2 April 2018
PDF [374 KB, uploaded 3 May 2018]


This paper considers a Multiple-Input Multiple-Output (MIMO) system with P transmitting and R receiving antennas and different overall noise characteristics on the different receiver antennas (e.g., due to nonlinear effects at the receiver side). Each communication link employs a Single-Carrier with Frequency-Domain Equalization (SC-FDE) modulation scheme, and the receiver is based on robust iterative frequency-domain multi-user detectors based on the Iterative Block Decision Feedback Equalization (IB-DFE) concept. We present low complexity efficient receivers that can employ low resolution Analog-to-Digital Converters (ADCs) and require the inversion of matrices with reduced dimension when the number of receive antennas is larger than the number of independent data streams. The advantages of the proposed techniques are particularly high for highly unbalanced MIMO systems, such as in the uplink of Base Station (BS) cooperation systems that aim for Single-Frequency Network (SFN) operation or massive MIMO systems with much more antennas at the receiver side. View Full-Text
Keywords: MIMO; nonlinear effects; SC-FDE; IB-DFE MIMO; nonlinear effects; SC-FDE; IB-DFE

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Casal Ribeiro, F.; Guerreiro, J.; Dinis, R.; Cercas, F.; Silva, A. Reduced Complexity Detection in MIMO Systems with SC-FDE Modulations and Iterative DFE Receivers. J. Sens. Actuator Netw. 2018, 7, 17.

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J. Sens. Actuator Netw. EISSN 2224-2708 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
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