Results 31 to 40 of about 8,525,169 (240)
Compute-and-forward transmission scheme in cell-free massive MIMO systems
ICT Express, 2023 Cell-free massive multi-input-multi-output (MIMO) systems comprise a large number of distributed access points (APs) to serve a small number of user equipments (UEs). In this paper, compute-and-forward (CF) is investigated for uplink in cell-free massive
Hua Jiang, Linghong Kong, Sidan Du
doaj +1 more source
Cell-Free Massive MIMO Versus Small Cells [PDF]
IEEE Transactions on Wireless Communications, 2016 A Cell-Free Massive MIMO (multiple-input multiple-output) system comprises a very large number of distributed access points (APs), which simultaneously serve a much smaller number of users over the same time/frequency resources based on directly measured
H. Ngo +4 more
semanticscholar +1 more source
Scalable Cell-Free Massive MIMO Systems [PDF]
IEEE Transactions on Communications, 2019 Imagine a coverage area with many wireless access points that cooperate to jointly serve the users, instead of creating autonomous cells. Such a cell-free network operation can potentially resolve many of the interference issues that appear in current ...
Emil Björnson, L. Sanguinetti
semanticscholar +1 more source
Cell-Free Massive MIMO Surveillance Systems
GLOBECOM 2023 - 2023 IEEE Global Communications Conference, 2023 Wireless surveillance, in which untrusted communications links are proactively monitored by legitimate agencies, has started to garner a lot of interest for enhancing the national security. In this paper, we propose a new cell-free massive multiple-input multiple-output (CF-mMIMO) wireless surveillance system, where a large number of distributed multi ...
Zahra Mobini +3 more
openaire +4 more sources
Telecom, 2022 In this paper, we propose a hybrid beamforming architecture with constant phase shifters (CPSs) for uplink cell-free millimetre-wave (mm-Wave) massive multiple-input multiple-output (MIMO) systems based on exploiting antenna selection to reduce power ...
Abdulrahman Al Ayidh +4 more
doaj +1 more source
Making Cell-Free Massive MIMO Competitive With MMSE Processing and Centralized Implementation [PDF]
IEEE Transactions on Wireless Communications, 2019 Cell-free Massive MIMO is considered as a promising technology for satisfying the increasing number of users and high rate expectations in beyond-5G networks.
Emil Björnson, L. Sanguinetti
semanticscholar +1 more source
Structured Massive Access for Scalable Cell-Free Massive MIMO Systems [PDF]
IEEE Journal on Selected Areas in Communications, 2020 How to meet the demand for increasing number of users, higher data rates, and stringent quality-of-service (QoS) in the beyond fifth-generation (B5G) networks? Cell-free massive multiple-input multiple-output (MIMO) is considered as a promising solution,
Shuaifei Chen +4 more
semanticscholar +1 more source
IET Networks, EarlyView., 2023 We utilise a metaheuristic optimisation method, inspired by nature, called the Lévy‐flight firefly algorithm (LFA), to tackle the power regulation and user grouping in the NOMA systems. Abstract The non‐orthogonal multiple access strategies have shown promise to boost fifth generation and sixth generation wireless networks' spectral efficiency and ...
Zaid Albataineh +4 more
wiley +1 more source
Clustered Cell-Free Massive MIMO [PDF]
2018 IEEE Globecom Workshops (GC Wkshps), 2018 This paper introduces a novel technique, clustered cell-free massive-MIMO (C2F-M-MIMO), that generalizes the recently proposed cell-free massive MIMO (CF-M-MIMO) concept by optimizing the connectivity pattern among access points (APs) and mobile stations (MSs).
Riera-Palou, Felip +3 more
openaire +2 more sources
Pilot Decontamination Processing in Cell-Free Massive MIMO [PDF]
IEEE Communications Letters, 2021 5 pages, 3 figures, to appear IEEE Communications ...
Alberto Álvarez Polegre +2 more
openaire +6 more sources