Results 1 to 10 of about 20,641 (239)
Downlink Spectral Efficiency of Cell-Free Massive MIMO with Full-Pilot Zero-Forcing
, 2018 Cell-free Massive multiple-input multiple-output (MIMO) ensures ubiquitous communication at high spectral efficiency (SE) thanks to increased macro-diversity as compared cellular communications.
Björnson, Emil +3 more
core +1 more source
Pilot Decontamination Through Pilot Sequence Hopping in Massive MIMO Systems [PDF]
, 2014 This work concerns wireless cellular networks applying massive multiple-input multiple-output (MIMO) technology. In such a system, the base station in a given cell is equipped with a very large number (hundreds or even thousands) of antennas and serves ...
de Carvalho, Elisabeth +1 more
core +3 more sources
Downlink Power Control in User-Centric and Cell-Free Massive MIMO Wireless Networks
, 2017 Recently, the so-called cell-free Massive MIMO architecture has been introduced, wherein a very large number of distributed access points (APs) simultaneously and jointly serve a much smaller number of mobile stations (MSs).
Buzzi, Stefano, Zappone, Alessio
core +1 more source
Performance Analysis of Millimeter Wave Massive MIMO Systems in Centralized and Distributed Schemes [PDF]
, 2018 This paper considers downlink multi-user millimeter-wave massive multiple-input multiple-output (MIMO) systems in both centralized and distributed configurations, referred to as C-MIMO and D-MIMO, respectively.
Li, Jing, Sun, Yichuang, Yue, Dian Wu
core +2 more sources
Open Research Europe, 2022 Beyond fifth generation (5G) communication systems aim towards data rates in the tera bits per second range, with improved and flexible coverage options, introducing many new technological challenges in the fields of network architecture, signal ...
F. Ponzini +46 more
doaj +1 more source
Cell-Free and User-Centric Massive MIMO at Millimeter Wave Frequencies
, 2017 In a cell-free (CF) massive MIMO architecture a very large number of distributed access points (APs) simultaneously and jointly serves a much smaller number of mobile stations (MSs); a variant of the cell-free technique is the user-centric (UC) approach,
Alonzo, Mario, Buzzi, Stefano
core +1 more source
Massive MIMO for Internet of Things (IoT) Connectivity
, 2019 Massive MIMO is considered to be one of the key technologies in the emerging 5G systems, but also a concept applicable to other wireless systems. Exploiting the large number of degrees of freedom (DoFs) of massive MIMO essential for achieving high ...
Abrão, Taufik +6 more
core +1 more source
Robust Pilot Decontamination Based on Joint Angle and Power Domain Discrimination [PDF]
, 2016 We address the problem of noise and interference corrupted channel estimation in massive MIMO systems. Interference, which originates from pilot reuse (or contamination), can in principle be discriminated on the basis of the distributions of path angles ...
Cottatellucci, Laura +4 more
core +1 more source
Performance of Multiuser Downlink Cell-Free Massive MIMO Systems With Hard Deadlines
IEEE Access, 2022 Cell-free massive MIMO (mMIMO) is expected to be a novel network architecture to support massive connections, ultra-high transmission rate, and ultra-reliability low-latency transmission.
Le Tan, Ziyang Zhang, Dongming Wang
doaj +1 more source
Pilot Decontamination in CMT-based Massive MIMO Networks
, 2014 Pilot contamination problem in massive MIMO networks operating in time-division duplex (TDD) mode can limit their expected capacity to a great extent.
Aminjavaheri, Amir +4 more
core +1 more source