Hardware-impairment compensation for enabling distributed large-scale MIMO

R Rogalin, OY Bursalioglu… - 2013 Information …, 2013 - ieeexplore.ieee.org
Distributed large-scale MIMO is a promising option for coping with the projected explosion in
mobile traffic. It involves multiple Access Points (APs) that are connected to a central server …

Scalable synchronization and reciprocity calibration for distributed multiuser MIMO

R Rogalin, OY Bursalioglu… - IEEE transactions on …, 2014 - ieeexplore.ieee.org
Large-scale distributed Multiuser MIMO (MU-MIMO) is a promising wireless network
architecture that combines the advantages of" massive MIMO" and" small cells." It consists of …

[PDF][PDF] TDD reciprocity calibration for multi-user large-scale (massive) MIMO systems with iterative coordinate descent

H Wei, D Wang, J Wang, X You - Science China information …, 2015 - researchgate.net
For large-scale multiple-input multiple-output (MIMO) antenna systems, time division
duplexing (TDD) is preferred since the downlink precoding matrix can be obtained through …

A framework for over-the-air reciprocity calibration for TDD massive MIMO systems

X Jiang, A Decurninge, K Gopala… - IEEE Transactions …, 2018 - ieeexplore.ieee.org
One of the biggest challenges in operating massive multiple-input multiple-output systems is
the acquisition of accurate channel state information at the transmitter. To take up this …

Achieving high data rates in a distributed MIMO system

HV Balan, R Rogalin, A Michaloliakos… - Proceedings of the 18th …, 2012 - dl.acm.org
A distributed MIMO system consists of several access points connected to a central server
and operating as a large distributed multi-antenna access point. In theory, such a system …

BeamSync: Over-the-air Synchronization for distributed massive MIMO systems

UK Ganesan, R Sarvendranath… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In distributed massive multiple-input multiple-output (MIMO) systems, multiple
geographically separated access points (APs) communicate simultaneously with a user …

AirSync: Enabling distributed multiuser MIMO with full spatial multiplexing

HV Balan, R Rogalin, A Michaloliakos… - IEEE/ACM …, 2013 - ieeexplore.ieee.org
The enormous success of advanced wireless devices is pushing the demand for higher
wireless data rates. Denser spectrum reuse through the deployment of more access points …

Distributed massive MIMO: A diversity combining method for TDD reciprocity calibration

CM Chen, S Blandino, A Gaber… - … 2017-2017 IEEE …, 2017 - ieeexplore.ieee.org
Distributed massive multiple-input multiple-output (DM-MIMO) gives a higher spectral
efficiency and enhanced coverage area, compared to collocated massive MIMO (CM-MIMO) …

Enhancing multiuser MIMO through opportunistic D2D cooperation

C Karakus, S Diggavi - IEEE Transactions on Wireless …, 2017 - ieeexplore.ieee.org
We propose a cellular architecture that combines multiuser MIMO downlink with
opportunistic use of unlicensed Industrial, Scientific, and Medical Radio (ISM) bands to …

Benefits of beamforming training scheme in distributed large-scale MIMO systems

J Li, D Wang, P Zhu, X You - IEEE Access, 2018 - ieeexplore.ieee.org
The downlink training yields rather modest performance gains due to the high degree of
channel hardening effect in co-located large-scale multi-input multi-output (MIMO) systems …