Massive MU-MIMO-OFDM uplink with direct RF-sampling and 1-Bit ADCs
Paper i proceeding, 2019

Advances in analog-to-digital converter (ADC) technology have opened up the possibility to directly digitize wideband radio frequency (RF) signals, avoiding the need for analog down- conversion. In this work, we consider an orthogonal frequency- division multiplexing (OFDM)-based massive multi-user (MU) multiple-input multiple-output (MIMO) uplink system that relies on direct RF-sampling at the base station and digitizes the received RF signals with 1-bit ADCs. Using Bussgang's theorem, we provide an analytical expression for the error-vector magnitude (EVM) achieved by digital down-conversion and zero-forcing combining. Our results demonstrate that direct RF-sampling 1-bit ADCs enables low EVM and supports high-order constellations in the massive MU-MIMO- OFDM uplink.

Författare

Sven Jacobsson

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

Ericsson AB

Lise Aabel

Ericsson AB

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

Mikael Coldrey

Ericsson AB

Ibrahim Can Sezgin

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik, Mikrovågselektronik

Christian Fager

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik, Mikrovågselektronik

Giuseppe Durisi

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Kommunikationssystem

Christoph Studer

Cornell Tech

2019 IEEE Globecom Workshops, GC Wkshps 2019 - Proceedings

9024414

2019 IEEE Globecom Workshops, GC Wkshps 2019
Waikoloa, USA,

Digital Radio-över-Fiber: En ny typ av radiosändare för framtidens trådlösa tillämpningar

Vetenskapsrådet (VR), 2016-01-01 -- 2019-12-31.

Ämneskategorier

Telekommunikation

Kommunikationssystem

Signalbehandling

DOI

10.1109/GCWkshps45667.2019.9024414

Mer information

Senast uppdaterat

2020-06-05