English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Hybrid beamforming is a promising concept to achieve high data ratetransmission at millimeter waves. To implement it in a transceiver, manyreferences optimally adapt to a high-dimensional multi-antenna channel but moreor less ignore the complexity of the channel estimation. Realizing thatreceived coupling coefficients of the channel and pairs of possible analogbeamforming vectors can be used for analog beam selection, we further propose alow-complexity scheme that exploits the coupling coefficients to implementhybrid beamforming. Essentially, the coupling coefficients can be regarded asimplicit channel state information (CSI), and the estimates of these couplingcoefficients yield alternatives of effective channel matrices of much lowerdimension. After calculating the Frobenius norm of these effective channelmatrices, it turns out that the effective channel having the largest value ofthe Frobenius norm provides the solution to hybrid beamforming problem.

Frequency-Selective Hybrid Beamforming Based on Implicit CSI for Millimeter Wave Systems