Enable SDRs for Real-Time MIMO Channel Sounding featuring Parallel Coherent Rx Channels

Stanko D, Sommerkorn G, Ihlow A, Galdo GD (2022)

Publication Type: Conference contribution

Publication year: 2022

Publisher: Institute of Electrical and Electronics Engineers Inc.

Book Volume: 2022-June

Conference Proceedings Title: IEEE Vehicular Technology Conference

Event location: Helsinki, FIN

ISBN: 9781665482431

DOI: 10.1109/VTC2022-Spring54318.2022.9860841

Abstract

A parallel receiver architecture for multiple input multiple output (MIMO) channel sounding application is presented with a software-defined radio (SDR)-based field-programmable gate array (FPGA) implementation. The receiver covers phase coherent reception via shared local oscillator (LO) and reference clock, a timing scheme synchronous to the antenna switching at the transmitter, and an integrated automatic gain control (AGC) in all receive channels. It is built with SDRs (NI USRP-2955, X310 series with TwinRx daughterboards). The use of these off-the-shelf hardware components reduces the costs of the sounding system. The FPGA implementation together with the system parameters of the chosen hardware allows a minimum AGC update interval of approx. 44.38mu mathrm{s}. Our setup demonstrates the applicability of state-of-the-art SDRs as a sounding system for continuous acquisition of the time variant, space, and frequency selective radio propagation channel.

Involved external institutions

Fraunhofer-Institut für Integrierte Schaltungen (IIS) DE Germany (DE) Technische Universität Ilmenau DE Germany (DE)

How to cite

APA:

Stanko, D., Sommerkorn, G., Ihlow, A., & Galdo, G.D. (2022). Enable SDRs for Real-Time MIMO Channel Sounding featuring Parallel Coherent Rx Channels. In IEEE Vehicular Technology Conference. Helsinki, FIN: Institute of Electrical and Electronics Engineers Inc..

MLA:

Stanko, Daniel, et al. "Enable SDRs for Real-Time MIMO Channel Sounding featuring Parallel Coherent Rx Channels." Proceedings of the 95th IEEE Vehicular Technology Conference - Spring, VTC 2022-Spring, Helsinki, FIN Institute of Electrical and Electronics Engineers Inc., 2022.

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