Massive MIMO systems: Signal processing challenges and future trends

RC de Lamare - URSI Radio Science Bulletin, 2013 - ieeexplore.ieee.org
This article presents a tutorial on multi-user multiple-antenna wireless systems with a very
large number of antennas, known as massive multi-input multi-output (MIMO) systems …

Iterative detection and decoding algorithms for MIMO systems in block-fading channels using LDPC codes

AGD Uchoa, CT Healy… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
We propose iterative detection and decoding (IDD) algorithms with low-density parity-check
(LDPC) codes for multiple-input multiple-output (MIMO) systems operating in block-fading …

Buffer-aided physical-layer network coding with optimal linear code designs for cooperative networks

J Gu, RC de Lamare, M Huemer - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
In this paper, we propose buffer-aided physical-layer network coding (PLNC) techniques for
improving data transmission over cooperative networks. In particular, we develop buffer …

Adaptive distributed space-time coding based on adjustable code matrices for cooperative MIMO relaying systems

T Peng, RC de Lamare… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
An adaptive distributed space-time coding (DSTC) scheme is proposed for two-hop
cooperative MIMO networks. Linear minimum mean square error (MMSE) receive filters and …

On ASER analysis of energy efficient modulation schemes for a device-to-device MIMO relay network

S Parvez, PK Singya, V Bhatia - IEEE Access, 2019 - ieeexplore.ieee.org
In this paper, we investigate the performance of a device-to-device (D2D) multiple-input and
multiple-output (MIMO) communications using an amplify-and-forward relaying for various …

On impact of imperfect CSI over hexagonal QAM for TAS/MRC-MIMO cooperative relay network

P Shaik, PK Singya, V Bhatia - IEEE Communications Letters, 2019 - ieeexplore.ieee.org
In this letter, we investigate the effect of imperfect channel state information (CSI) on
quadrature amplitude modulation (QAM) schemes for a multi-input and multi-output (MIMO) …

Adaptive buffer-aided distributed space-time coding for cooperative wireless networks

T Peng, RC De Lamare - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
This work proposes adaptive buffer-aided distributed space-time coding schemes and
algorithms with feedback for wireless networks equipped with buffer-aided relays. The …

Joint iterative power allocation and linear interference suppression algorithms for cooperative DS-CDMA networks

RC De Lamare - IET communications, 2012 - IET
This work presents joint iterative power allocation and interference suppression algorithms
for spread spectrum networks, which employ multiple hops and the amplify-and-forward …

Cloud-driven multi-way multiple-antenna relay systems: joint detection, best-user-link selection and analysis

FL Duarte, RC de Lamare - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
In this work, we present a cloud-driven uplink framework for multi-way multiple-antenna
relay systems which aids joint symbol detection in the cloud and where users are selected to …

Iterative AP selection, MMSE precoding and power allocation in cell‐free massive MIMO systems

VMT Palhares, RC de Lamare, AR Flores… - IET …, 2020 - Wiley Online Library
In this work, the authors proposed the iterative access point (AP) selection (APS), linear
minimum mean‐square error (MMSE) precoding and power allocation techniques for cell …