Results 91 to 100 of about 103,752 (243)
Beamforming Techniques for Multichannel audio Signal Separation
, 2012 Beamforming is a signal processing technique. It has been studied in many areas such as radar, sonar, seismology and wireless communications, to name but a few.
Adel, Hidri +3 more
core +1 more source
HRTF-based Robust Least-Squares Frequency-Invariant Polynomial Beamforming [PDF]
arXiv, 2016 In this work, we propose a robust Head-Related Transfer Function (HRTF)-based polynomial beamformer design which accounts for the influence of a humanoid robot's head on the sound field. In addition, it allows for a flexible steering of our previously proposed robust HRTF-based beamformer design.
arxiv
Journal of Electrical and Computer EngineeringThis research paper proposes three joint transmit and receive (TX/RX) beamforming schemes for minimizing the bit error rates of next-generation wireless sensor networks. Based on minimizing the optimization problem of the total mean squared error between
Mohamed S. Abouzeid +3 more
doaj +1 more source
Partial Zero-Forcing for Multi-Way Relay Networks
, 2018 The ever increasing demands for mobile network access have resulted in a significant increase in bandwidth usage. By improving the system spectral efficiency, multi-way relay networks (MWRNs) provide promising approaches to address this challenge.
Ardakani, Masoud +4 more
core +1 more source
Practical photonic beamforming [PDF]
International Topical Meeting on Microwave Photonics. MWP'99. Technical Digest (Cat. No.99EX301), 2003 The impetus for future array antenna systems has revolved around the demands for increased capabilities in array antennas including larger arrays higher power and better angular resolution, wide bandwidths, reconfigurability and higher operating frequencies.
openaire +2 more sources
Semi-blind adaptive beamforming for high-throughput quadrature amplitude modulation systems
, 2010 A semi-blind adaptive beamforming scheme is proposed for wireless systems that employ high-throughput quadrature amplitude modulation signalling. A minimum number of training symbols, equal to the number of receiver antenna arrays elements, are first ...
Chen, Sheng, Hanzo, Lajos, Yao, Wang
core +1 more source
, 2006 An adaptive beamforming assisted receiver is proposed for multiple antenna aided multiuser systems that employ bandwidth efficient quadrature amplitude modulation (QAM).
Chen, S., Du, H.Q, Hanzo, L.
core
Analysis of Simulated and Measured Indoor Channels for mm-Wave Beamforming Applications
International Journal of Antennas and Propagation, 2018 Ray tracing- (RT-) assisted beamforming, where beams are directly steered to dominant paths tracked by ray tracing simulations, is a promising beamforming strategy, since it avoids the time-consuming exhaustive beam searching adopted in conventional beam
Anders Karstensen +4 more
doaj +1 more source
Multiple-Beam Selection With Limited Feedback for Hybrid Beamforming in Massive MIMO Systems
IEEE Access, 2017 Hybrid multiple-input multiple-output (MIMO) systems have been thought as a promising technology in future 5G. Compared with conventional digital MIMO systems, such a structure is equipped with fewer RF chains, which would reduce the computational ...
Yuwei Ren +3 more
doaj +1 more source
Numerically Optimized Fourier Transform-Based Beamforming Accelerated by Neural Networks
Applied SciencesConventional beamforming methods for reconfigurable reflector antennas assume full control over the amplitude and phase of the reflected field. Here, we develop a novel beamforming methodology for reflecting Programmable Metasurfaces (PMS) with ...
Keivan Kaboutari +2 more
doaj +1 more source