Results 41 to 50 of about 7,667 (173)
Hybrid Analog and Digital Precoding: From Practical RF System Models to Information Theoretic Bounds
, 2016 Hybrid analog-digital precoding is a key millimeter wave access technology, where an antenna array with reduced number of radio frequency (RF) chains is used with an RF precoding matrix to increase antenna gain at a reasonable cost.
Krishnan, Rajet, Venkateswaran, Vijay
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Achievable Rates of Multi-User Millimeter Wave Systems with Hybrid Precoding [PDF]
, 2015 Millimeter wave (mmWave) systems will likely employ large antenna arrays at both the transmitters and receivers. A natural application of antenna arrays is simultaneous transmission to multiple users, which requires multi-user precoding at the ...
Alkhateeb, Ahmed +2 more
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Hybrid precoding method for mmWave massive MIMO systems based on LFM
Dianxin kexue, 2019 Analog-digital hybrid precoding is a key technology for millimeter wave massive MIMO systems that reduce hardware costs while balancing system performance.However,the traditional hybrid precoding scheme often needed to find a suitable codebook for ...
Haoyi CHEN, Yifan DING, Ying CHENG
doaj +2 more sources
Hardware-Efficient Hybrid Precoding for Millimeter Wave Systems With Multi-Feed Reflectarrays
IEEE Access, 2018 Current hybrid precoding schemes for large-scale antenna array-aided millimeter wave (mmWave) wireless systems adopt either full-connected or sub-connected architectures based on phased array antennas (PAAs).
Zhengyi Zhou +3 more
doaj +1 more source
A hybrid TIM-NOMA scheme for the SISO Broadcast Channel [PDF]
, 2015 Future mobile communication networks will require enhanced network efficiency and reduced system overhead due to their user density and high data rate demanding applications of the mobile devices.
Johnson, Oliver +2 more
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Broadband Hybrid Precoding Scheme Based on Cyclic Delay in Terahertz Communications
IEEE Access, 2021 The terahertz communication system with traditional hybrid precoding structure has the problem of beam diffusion. This problem leads to the serious loss of achievable rate and offsets the performance gain caused by bandwidth increase, so a broadband ...
Lei Xu +4 more
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Machine Learning Inspired Energy-Efficient Hybrid Precoding for MmWave Massive MIMO Systems
, 2017 Hybrid precoding is a promising technique for mmWave massive MIMO systems, as it can considerably reduce the number of required radio-frequency (RF) chains without obvious performance loss. However, most of the existing hybrid precoding schemes require a
Chih-Lin, I +4 more
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Low complexity hybrid precoding method in mmWave massive MIMO system
Dianxin kexue, 2016 A low-complexity hybrid precoding method was proposed to design the hybrid precoding for mmWave massive MIMO system.Firstly,an initial radio frequency(RF)precoding matrix was constructed based on the singular value decomposition.Then an updated RF matrix
Jianwei XIANG, Xiulan YU, Xiaorong JING
doaj +2 more sources
Alternating Minimization Algorithms for Hybrid Precoding in Millimeter Wave MIMO Systems
, 2016 Millimeter wave (mmWave) communications has been regarded as a key enabling technology for 5G networks. In contrast to conventional multiple-input-multiple-output (MIMO) systems, precoding in mmWave MIMO cannot be performed entirely at baseband using ...
Letaief, Khaled B. +3 more
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International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT As non‐terrestrial networks (NTNs) become integral to future 6G systems, ensuring seamless connectivity and service continuity over low Earth orbit (LEO) satellite constellations is essential. This work investigates the impact of open radio access network (RAN) functional splits on handover performance in NTNs, focusing on minimizing service ...
Siva Satya Sri Ganesh Seeram +3 more
wiley +1 more source