Results 41 to 50 of about 637,438 (171)
Indoor Massive MIMO Channel Modelling Using Ray-Launching Simulation
International Journal of Antennas and Propagation, 2014 Massive multi-input multioutput (MIMO) is a promising technique for the next generation of wireless communication networks. In this paper, we focus on using the ray-launching based channel simulation to model massive MIMO channels.
Jialai Weng +4 more
doaj +1 more source
Orthogonally Precoded Massive MIMO for High Mobility Scenarios
IEEE Access, 2019 Massive multiple-input multiple-output (MIMO) systems are of high interest for ultra-reliable low-latency communication (URLLC) links. They provide channel hardening, i.e.
Thomas Zemen +4 more
doaj +1 more source
Multisegment Mapping Network for Massive MIMO Detection
International Journal of Antennas and Propagation, 2021 The massive multiple-input multiple-output (MIMO) technology is one of the core technologies of 5G, which can significantly improve spectral efficiency.
Yongzhi Yu, Jianming Wang, Limin Guo
doaj +1 more source
Cell-Free Massive MIMO with Energy-Efficient Downlink Operation in Industrial IoT
Mathematics, 2022 Cell-free massive Multi-input Multi-output (MIMO) can offer higher spectral efficiency compared with cellular massive MIMO by providing services to users through the collaboration of distributed APs, and cell-free massive MIMO systems with distributed ...
Xiaomin Chen +4 more
doaj +1 more source
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
Reflecting Intelligent Surfaces Assisted High-Rank Ultra Massive MIMO Terahertz Channels [PDF]
peer reviewedReflective Intelligent Surface (RIS)-assisted Ultra-Massive MIMO (Um-MIMO) systems in the terahertz (THz) spectrum are gaining attention for surpassing current wireless system limitations.
SOLANKI, Sourabh +5 more
core +1 more source
Leveraging Deep Neural Networks for Massive MIMO Data Detection [PDF]
, 2022 Massive multiple-input multiple-output (MIMO) is a key technology for emerging next-generation wireless systems. Utilizing large antenna arrays at base-stations, massive MIMO enables substantial spatial multiplexing gains by simultaneously serving a ...
Nguyen, Nhan T. +5 more
core +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
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
Duality of antennas and subcarriers in massive MIMO-OFDM downlink system [PDF]
, 2015 Massive multiple-input-multiple-output (MIMO) can significantly outperform conventional MIMO in terms of spectrum efficiency and link reliability. For massive MIMO, there are still theoretical and practical issues that have to be addressed.
Bannour, Ahmed, Sun, Yichuang
core +1 more source