Common problems researchers identify · 01Wireless Sensor Beamforming Challenges
169 papers21.0% of this theme group
Researchers highlight connectivity, energy use, and coordination issues in distributed beamforming for sensor networks.
Beamforming (166) · Wireless (55) · Channel (24) · Computer network (23)
Distributed and Collaborative Beamforming in Wireless Sensor Networks: Classifications, Trends, and Research Directions
Distributed Beamforming for Wireless Sensor Networks With Improved Graph Connectivity and Energy Efficiency
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Common problems researchers identify · 02Acoustic Beamforming Limitations
132 papers16.4% of this theme group
Papers point to noise, transducer imperfections, and multi‑domain shifts that reduce acoustic beamforming performance.
Beamforming (118) · Acoustics (20) · Transducer (6) · Noise (9)
APPLICATION OF PLANAR BEAMFORMING METHOD TO IDENTIFICATION OF SPINNING ACOUSTIC MODES
Improved beamforming by accounting for multiple domain shifts and sources of degradation
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Common problems researchers identify · 03Massive MIMO Deployment Hurdles
131 papers16.3% of this theme group
Studies discuss scalability, interference, and hardware constraints hindering next‑generation multi‑user MIMO systems.
MIMO (130) · 3G MIMO (35) · Multi-user MIMO (24) · Telecommunications (39)
Massive MIMO for next generation wireless systems
Mobile Cell-Free Massive MIMO: Challenges, Solutions, and Future Directions
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Common problems researchers identify · 04Coordinated Multipoint Beamforming Issues
105 papers13.0% of this theme group
Works identify practical obstacles in large‑scale antenna coordination and software integration for 5G networks.
MIMO (52) · Beamforming (55) · Telecommunications (30) · Software deployment (14)
Exploring Coordinated Multipoint Beamforming Strategies for 5G Cellular
Practical Large Scale Antenna Systems for 5G cellular networks
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Common problems researchers identify · 05Spectral Efficiency and Interference
100 papers12.4% of this theme group
Research flags difficulties in achieving high spectral efficiency while managing lattice‑based interference and full‑duplex operation.
Spectral efficiency (20) · Lattice reduction (6) · Lattice (6) · Interference (15)
Full-Duplex Cellular Networks
A Review of Techniques and Challenges in Green Communication
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Common problems researchers identify · 06MIMO Radar Interference Concerns
94 papers11.7% of this theme group
Authors note mutual interference and control challenges when merging MIMO techniques with radar and communication functions.
MIMO (88) · Radar (20) · Control theory (13) · Electronic engineering (26)
MIMO OFDM Radar-Communication System with Mutual Interference Cancellation
A Survey on Over-The-Air Linearization Methods for MIMO Systems
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Common problems researchers identify · 07Phased‑Array Scaling Problems
74 papers9.2% of this theme group
Papers address sensitivity, fabrication, and millimeter‑wave scaling obstacles for large phased‑array antenna systems.
Phased array (30) · Antenna array (15) · Beamforming (60) · Antenna (24)
High-Sensitivity Phased Array Receivers for Radio Astronomy
Scaling Millimeter-Wave Phased Arrays: Challenges and Solutions
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