beamforming


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beamforming

Beamforming directs the signals on transmitters and receivers with multiple antennas to improve transmission speed. It is accomplished by detecting the signals and sending feedback to the transmitter to adjust the phase and amplitude of the signals at its antennas. Starting with the 802.11ac version of Wi-Fi, beamforming was standardized for vendor interoperability (see 802.11ac).

Beamforming can also work with receiving devices only. For example, certain hearing aids can be configured to emphasize sound coming directly in front or from the left or right. See MIMO and antenna diversity.


Bouncing Signals
In this WiGig example, beamforming bounces signals from the router (red arrow) off the wall to the laptop (see WiGig and WirelessHD). (Image courtesy of the Wi-Fi Alliance.)
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References in periodicals archive ?
Beamforming has numerous applications in radar, sonar, seismology, microphone array speech processing, and, more recently, wireless communications.
The simulation platform provides actionable beamforming recommendations and expected capacity results matching the real-world performance results validated through drive tests, network statistics data and standard key performance indicators (KPIs).
You mention that behavioral simulation for massive MIMO will help to accelerate development and optimization of beamforming designs within 5G systems.
today announced that together with NEC Corporation they have succeeded in what is believed to be the world's first(1) fifth-generation (5G) transmission of a 4.5GHz signal using beamforming and inter-base station coordination to reduce interference for 5.5 Gbps throughput to eight mobile terminals.
Utilizing SDR technique[17,18] and the successive convex approximation (SCA) algorithm [19], we recast the original problem of maximizing system secrecy rate, which is non-convex, into a convex SDP problem to obtain the optimal beamforming vectors.
Located near Dallas, Texas, this automated far field anechoic testing chamber is capable of completely automated millimetre wave beamforming calibration and ready for trials of 5G massive MIMO systems.
New technologies and millimeter wave spectrum allocations have made beamforming antennas both commercially feasible and necessary to deliver on 5G.
Accurate knowledge of spatial channels at mm-wave bands is essential for assessing beamforming performance [6, 7].
Using 60 MHz of spectrum and patented beamforming technology, SmartSky's network will provide more than 10 times the typical speed and capacity of the current industry standard ATG network, and at a lower cost per bit, ushering in the new era of business-grade inflight connectivity as shown in this customer demonstrationflight video compilation.
With this new reference solution, developers can design products with the same unique 7-mic circular array, beamforming technology, and voice processing software that have made Amazon Echo so popular with customers.
The signal acquisition consists of a microphone array composed of up to 33 MEMS microphones whereas the PDM demodulation and the beamforming are implemented in an FPGA.