The time invariant beamformer for Doppler spread suppression in high‐mobility transmission

Autor:	Zhinan Hu
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	5G mobile communication antenna arrays Doppler effect Doppler shift frequency division multiplexing massive multi‐input multi‐output systems Electrical engineering. Electronics. Nuclear engineering TK1-9971
Zdroj:	Electronics Letters, Vol 59, Iss 20, Pp n/a-n/a (2023)
Druh dokumentu:	article
ISSN:	1350-911X 0013-5194
DOI:	10.1049/ell2.12965
Popis:	Abstract Beamforming network with the Doppler suppression scheme reducing the channel time‐varying effects has attracted much research interests in high‐mobility massive MIMO communications. However, the current time‐varying beamforming network still suffers from high volatility peak‐to‐average power ratio (PAPR) fluctuations. For this reason, a time invariant compensation optimized beamformer is proposed to mitigate the peak‐to‐average power ratio high volatility and the channel time variation in the high‐mobility uplink transmission. To attain the Doppler spread and implement the Doppler spread suppression scheme, a time‐varying spectrum (TVS) is proposed and its statistical properties of time‐varying spectrum is analyzed. The simulation results are provided to verify the proposed studies.
Databáze:	Directory of Open Access Journals
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