Sweden’s
telecom industry,
in focus.

Wireless Sensor Beamforming Issues

21.0% of this theme group

Researchers highlight connectivity, energy use, and coordination challenges 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

Acoustic Beamforming Limitations

16.4% of this theme group

Papers discuss noise, transducer imperfections, and mode identification problems in acoustic beamforming.

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

Massive MIMO Deployment Barriers

16.3% of this theme group

Works point out scalability, interference, and hardware constraints hindering next‑generation massive 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

Coordinated Multipoint Beamforming Challenges

13.0% of this theme group

Studies examine practical limits of coordinated beamforming and large‑scale antenna deployment in 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

Spectral Efficiency and Interference Concerns

12.4% of this theme group

Research flags difficulties 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

MIMO Radar Interference Issues

11.7% of this theme group

Papers identify mutual interference and control‑theory obstacles in combined MIMO radar‑communication systems.

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

Phased‑Array Scaling Obstacles

9.2% of this theme group

Works focus on sensitivity, fabrication, and millimeter‑wave challenges when scaling phased‑array antennas.

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

Distributed Beamforming Practical Risks

19.5% of this theme group

Authors caution about synchronization, network overhead, and real‑world performance gaps in distributed beamforming.

Beamforming (218) · Base station (38) · Computer network (25) · Wireless (28)

Distributed transmit beamforming: challenges and recent progress

Design and experimental evaluation of multi-user beamforming in wireless LANs

MIMO Precoding Hardware Impairments

18.1% of this theme group

Studies warn that hardware non‑idealities and phase noise can reduce MIMO precoding gains.

MIMO (191) · Telecommunications link (61) · Electronic engineering (65) · Precoding (34)

MIMO capacities and outage probabilities in spatially multiplexed optical transport systems

Massive MIMO with Transceiver Hardware Impairments: Performance Analysis and Phase Noise Error Minimization

Adaptive Acoustic Beamforming Uncertainties

17.7% of this theme group

Research highlights sensitivity to localization errors and environmental noise in adaptive acoustic beamformers.

Beamforming (179) · Adaptive beamformer (26) · Acoustics (27) · Noise (18)

An analysis of beamforming algorithms for passive bottom reflection-loss estimation

On the Impact of Localization Errors on HRTF-based Robust Least-Squares\n Beamforming

Hybrid Beamforming Energy and Non‑linearity

14.9% of this theme group

Papers note energy inefficiency and amplifier non‑linearity as limiting factors for hybrid beamforming.

MIMO (152) · Beamforming (113) · Radar (20) · Waveform (10)

On the Energy Efficiency of MIMO Hybrid Beamforming for Millimeter-Wave Systems With Nonlinear Power Amplifiers

Performance Evaluation of Analog Beamforming with Hardware Impairments for mmW Massive MIMO Communication in an Urban Scenario

Interference Alignment Feasibility

11.7% of this theme group

Works caution that achieving reliable interference alignment in dense full‑duplex networks remains difficult.

Spectral efficiency (35) · Interference (32) · Lattice reduction (5) · Electronic engineering (25)

Harvesting the (Self-)Interference in Heterogeneous Full-Duplex Networks For Joint Rate-Energy Optimization.

System-level performance of interference alignment

Array Calibration and Frequency Errors

10.7% of this theme group

Authors point out calibration drift and frequency mismatches that impair microphone and phased‑array performance.

Microphone array (17) · Beamforming (88) · Phased array (23) · Antenna array (16)

Evaluating seismic beamforming capabilities of distributed acoustic sensing arrays

On the Impact of Frequency Discrepancy on Beamforming Performance in Millimeter-Wave Phased Array Antenna Systems

Human Exposure and Field Testing Limits

7.3% of this theme group

Studies raise health exposure concerns and practical testing challenges for 5G beamforming deployments.

Beamforming (48) · MIMO (35) · Antenna (18) · Base station (16)

Assessment of Human Exposure Levels Due to Mobile Phone Antennas in 5G Networks

Outdoor experiments on 5G radio access using distributed MIMO and beamforming in 28-GHz frequency band

Integrated Sensing and Beamforming

24.3% of this theme group

Research explores joint beamforming designs that combine communication, sensing, and reconfigurable surfaces.

Beamforming (1,396) · Wireless (256) · Base station (239) · Transmission (158)

Joint and Robust Beamforming Framework for Integrated Sensing and Communication Systems

3D Beamforming in Reconfigurable Intelligent Surfaces-assisted Wireless Communication Networks

Adaptive Acoustic Beamforming for Speech

18.6% of this theme group

Papers pursue adaptive beamforming techniques to improve target detection, surveillance, and speech enhancement.

Beamforming (891) · Adaptive beamformer (167) · Acoustics (134) · Speech recognition (71)

Adaptive Beamforming for Target Detection and Surveillance Based on Distributed Unmanned Aerial Vehicle Platforms

Performance evaluation of beamforming techniques for speech enhancement

Advanced Precoding for Full‑Duplex MIMO

17.9% of this theme group

Works develop low‑complexity precoding schemes targeting spectral and energy efficiency in full‑duplex MIMO links.

MIMO (673) · Precoding (238) · Telecommunications link (199) · Electronic engineering (234)

Precoding for Full Duplex Multiuser MIMO Systems: Spectral and Energy Efficiency Maximization

A low-complexity linear precoding and power allocation scheme for downlink massive MIMO systems

Hybrid Beamforming for Millimeter‑Wave MIMO

12.7% of this theme group

Studies propose hybrid and regularized beamforming methods to boost performance of millimeter‑wave massive MIMO.

MIMO (596) · Beamforming (727) · Telecommunications link (145) · Precoding (116)

Beamforming techniques for massive MIMO systems in 5G: overview, classification, and trends for future research

Hybrid Beamforming for Millimeter Wave Massive Multiuser MIMO Systems Using Regularized Channel Diagonalization

Real‑Time Digital Phased‑Array Techniques

10.9% of this theme group

Research advances simultaneous transmit‑receive and adaptive station beamforming for next‑generation phased‑array telescopes.

Phased array (216) · Beamforming (532) · Antenna array (94) · Phased-array optics (37)

Aperture-Level Simultaneous Transmit and Receive With Digital Phased Arrays

A Real-Time Adaptive Station Beamforming Strategy for Next Generation Phased Array Radio Telescopes

Compact Dual‑Band MIMO Antennas

8.6% of this theme group

Papers present tightly spaced, low‑coupling MIMO antenna designs for multi‑standard mobile and wireless applications.

MIMO (445) · Antenna (275) · Electronic engineering (231) · Decoupling (59)

Dual MIMO Antenna System for 5G Mobile Phones, 5.2 GHz WLAN, 5.5 GHz WiMAX and 5.8/6 GHz WiFi Applications

A CLOSELY SPACED DUAL-BAND MIMO PATCH ANTENNA WITH REDUCED MUTUAL COUPLING FOR 4G/5G APPLICATIONS

MIMO Radar Waveform Innovation

7.0% of this theme group

Works investigate frequency‑diverse and joint direction‑of‑arrival techniques to enhance radar imaging capabilities.

Radar (243) · MIMO (328) · Waveform (52) · Radar imaging (31)

MIMO Radar with Frequency Diversity

Joint direction-of-departure and direction-of-arrival estimation in an ultra-wideband MIMO radar system

Stockholm

62.3% across the displayed hubs

5 companies hiring · $200.7M disclosed funding

Gothenburg

10.5% across the displayed hubs

0 companies hiring · $34.2M disclosed funding

Solna

8.6% across the displayed hubs

0 companies hiring · $1.1M disclosed funding

Kista

6.8% across the displayed hubs

0 companies hiring · $5.7M disclosed funding

Umea

3.7% across the displayed hubs

2 companies hiring · $2.3M disclosed funding

Helsingborg

3.1% across the displayed hubs

0 companies hiring · $0 disclosed funding

Malmo

2.5% across the displayed hubs

0 companies hiring · $1.5M disclosed funding

Bromma

2.5% across the displayed hubs

0 companies hiring · $0 disclosed funding