This letter tackles the problem of channel estimation in mmWave multiple-input single-output systems, where users are equipped with single-antenna receivers. By leveraging broadcast transmissions in the downlink channel, two novel low-complexity estimation approaches are devised, able to operate even in presence of a reduced number of transmit antennas or limited bandwidth. Numerical results show that the proposed algorithms provide accurate estimates of the channel parameters, achieving at the same time about 50% complexity reduction compared to existing approaches.
Low-Complexity Downlink Channel Estimation in mmWave Multiple-Input Single-Output Systems / Fascista, Alessio; De Monte, Alessandro; Coluccia, Angelo; Wymeersch, Henk; Seco-Granados, Gonzalo. - In: IEEE WIRELESS COMMUNICATIONS LETTERS. - ISSN 2162-2337. - STAMPA. - 11:3(2022), pp. 518-522. [10.1109/LWC.2021.3134826]
Low-Complexity Downlink Channel Estimation in mmWave Multiple-Input Single-Output Systems
Fascista, Alessio
;
2022-01-01
Abstract
This letter tackles the problem of channel estimation in mmWave multiple-input single-output systems, where users are equipped with single-antenna receivers. By leveraging broadcast transmissions in the downlink channel, two novel low-complexity estimation approaches are devised, able to operate even in presence of a reduced number of transmit antennas or limited bandwidth. Numerical results show that the proposed algorithms provide accurate estimates of the channel parameters, achieving at the same time about 50% complexity reduction compared to existing approaches.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
