Results 71 to 80 of about 14,777 (220)
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT Low Earth Orbit (LEO) satellite constellations offer unprecedented opportunities for global broadband connectivity but pose significant beamforming challenges due to rapid platform motion and stringent onboard hardware constraints. Fully digital architectures, while optimal in theory, remain impractical for satellite payloads, motivating ...
Mohammad Momani +2 more
wiley +1 more source
Massive Multi-Antenna Communications with Low-Resolution Data Converters [Elektronisk resurs] [PDF]
, 2019 Massive multi-user (MU) multiple-input multiple-output (MIMO) will be a core technology in future cellular communication systems. In massive MU-MIMO systems, the number of antennas at the base station (BS) is scaled up by several orders of magnitude ...
Jacobsson, Sven,
core
Massive MIMO for Full-Duplex Cellular Two-Way Relay Network: A Spectral Efficiency Study
IEEE Access, 2017 This paper presents the new analysis of the applications of massive multiple-input-multiple-output (MIMO) in full-duplex (FD) cellular two-way relay networks, and sheds valuable insights on the interactions between massive MIMO, and relay and duplex ...
Zhaoxi Fang +4 more
doaj +1 more source
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT In this paper, the correlation learning estimation and adaptive reduction (CLEAR) of interference, an adaptive, blind and transparent interference compensation method applied in a wideband dual‐channel receiver, is studied for a pair of independent satellite multi‐connectivity links, using the same carrier frequency and signal bandwidth in use
Svilen Dimitrov
wiley +1 more source
ON–OFF Analog Beamforming for Massive MIMO [PDF]
IEEE Transactions on Vehicular Technology, 2018 This paper investigates a new analog beamforming architecture for massive multiple-input multiple-output (MIMO) systems, where each of the multiple transmit antennas is switched to be on or off to form a beam according to the channel state information at transmitters.
Shengli Zhang 0001 +3 more
openaire +2 more sources
Massive OAM‐MIMO transmission scheme for 5G networks and beyond
IET Communications, 2021 The combination of orbital angular momentum (OAM) and massive multiple‐input multiple‐output (MIMO) brings the possibility of almost infinite transmission capability, which may be applied in the coming 5th generation networks and beyond. In this study, a
Fuchun Mao +5 more
doaj +1 more source
DCD-Based Joint Sparse Channel Estimation for OFDM in Virtual Angular Domain
IEEE Access, 2021 Massive Multiple Input Multiple Output (MIMO) is a promising technique for communications due to the high data transmission rate. To harvest the benefit from the massive MIMO, it is necessary to have accurate channel estimates.
Mingduo Liao, Yuriy Zakharov
doaj +1 more source
CAAI Transactions on Intelligence Technology, EarlyView.Abstract Internet of Medical Things (IoMT) has typical advancements in the healthcare sector with rapid potential proof for decentralised communication systems that have been applied for collecting and monitoring COVID‐19 patient data. Machine Learning algorithms typically use the risk score of each patient based on risk factors, which could help ...
Chandramohan Dhasaratha +9 more
wiley +1 more source
Ubiquitous cell-free Massive MIMO communications
EURASIP Journal on Wireless Communications and Networking, 2019 Since the first cellular networks were trialled in the 1970s, we have witnessed an incredible wireless revolution. From 1G to 4G, the massive traffic growth has been managed by a combination of wider bandwidths, refined radio interfaces, and network ...
Giovanni Interdonato +4 more
doaj +1 more source
A Generalized Spatial Modulation System Using Massive MIMO Space Time Coding Antenna Grouping
Entropy, 2020 Massive multiple input multiple output (MIMO), also known as a very large-scale MIMO, is an emerging technology in wireless communications that increases capacity compared to MIMO systems.
Amira I. Zaki +3 more
doaj +1 more source