A projected fast ISTA algorithm for joint beam forming and antenna selection in massive MIMO
Sign Up to like & getrecommendations! Published in 2020 at "Wireless Networks"
DOI: 10.1007/s11276-018-1786-0
Abstract: The joint beam-forming and antenna selection problem encountered in modern multi-user massive multiple input multiple output (MIMO) communication systems is solved using the projected fast iterative shrinkage–thresholding algorithm (ISTA). The algorithm aim is to find… read more here.
Keywords: forming antenna; fast ista; beam forming; projected fast ... See more keywords
Beam Forming and Steering with INS for Cellular Phones to Reduce EM Radiation Exposure
Sign Up to like & getrecommendations! Published in 2017 at "Wireless Personal Communications"
DOI: 10.1007/s11277-017-4490-y
Abstract: Cellular phone antennas are generally designed to have radiation patterns that are as omnidirectional as possible. Omnidirectional antennas allow a phone’s radio to work well for many orientations of the phone with respect to the… read more here.
Keywords: cellular phones; forming steering; radiation; exposure ... See more keywords
Antenna selection with improved group based particle swarm optimization (IGPSO) and joint adaptive beam forming for wideband millimeter wave communication
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Ambient Intelligence and Humanized Computing"
DOI: 10.1007/s12652-020-01828-z
Abstract: In general, realization of large array communication for mm Wave systems is non-vital. Radio Traditional digital antenna array that comprises of one Radio Frequency (RF) chain for every antenna leads to high consumption of energy,… read more here.
Keywords: selection; antenna; igpso; antenna selection ... See more keywords
Beam forming of shear horizontal guided waves by multi-row staggered magnet configurations.
Sign Up to like & getrecommendations! Published in 2021 at "Ultrasonics"
DOI: 10.1016/j.ultras.2021.106405
Abstract: This paper introduces the wave interferences effects of staggering multiple rows of Periodically Permanent Magnets (PPM) in an Electromagnetic Acoustic Transducer (EMAT) configuration to achieve selective beam forming effects such as steering, focusing and de-focusing… read more here.
Keywords: waves multi; beam forming; horizontal guided; forming shear ... See more keywords
Beam-forming of broadband QFM signals using generalized time–frequency transform
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Electronics"
DOI: 10.1080/00207217.2019.1666307
Abstract: ABSTRACT Detection and localisation of contacts using sensor array play a significant role in the area of array signal processing. In this paper, a new beam-forming analysis for broad-banded quadratic frequency modulated (QFM) signals using… read more here.
Keywords: frequency; time frequency; signals using; gtft ... See more keywords
LEO Satellite Multi-Beam Coverage Area Division and Beam Forming Method
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Antennas and Wireless Propagation Letters"
DOI: 10.1109/lawp.2021.3099104
Abstract: The LEO satellite has a large communication angle, resulting in a large difference in path loss at different angles. The existing multi-beam coverage area division method cannot meet the coverage requirement of the effective isotropic… read more here.
Keywords: beam coverage; coverage area; beam forming; coverage ... See more keywords
1.55-μm Sidewall Grating DFB Lasers Integrated with a Waveguide Crossing for an Optical Beam Forming Network
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2023.3278880
Abstract: By using asymmetric twin-waveguide technology, a 1.55- $\mu \text{m}$ sidewall grating distributed feedback laser monolithically integrated with a passive waveguide crossing was for the first time demonstrated for an optical beam forming network, which needs… read more here.
Keywords: sidewall grating; forming network; beam forming; optical beam ... See more keywords
A Hybrid Beam-Forming and Direction-Finding Method for Wind Direction Sensing Based on HF Radar
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2018.2840837
Abstract: Recent studies indicate that the poor antenna sidelobe level of phased-array high-frequency (HF) radars degrades the performance of Bragg ratio estimation for wind direction measurements. To explore this issue, this paper improves the previous model… read more here.
Keywords: direction; wind direction; method; hybrid beam ... See more keywords
Review of Substrate Integrated Waveguide Circuits for Beam-Forming Networks Working in X-Band
Sign Up to like & getrecommendations! Published in 2019 at "Applied Sciences"
DOI: 10.3390/app9051003
Abstract: A review of substrate integrated waveguide (SIW) components designed for the use in beam-forming networks working in X-Band is presented. The proposed devices are four-port and six-port couplers and magic tees for the network. The… read more here.
Keywords: substrate integrated; networks working; review substrate; beam forming ... See more keywords