Graduate School and Research Center in Digital Sciences

Performance analysis of reciprocity calibration in massive MIMO

Gopala, Kalyana; Slock, Dirk TM

SPAWC 2019, 20th IEEE International Workshop on Signal Processing Advances in Wireless Communications, 2-5 July 2019, Cannes, France

Time Division Duplexing (TDD) Massive MIMO (MaMIMO) relies on channel reciprocity to derive the channel state information at the transmit side (CSIT) from the uplink (UL) channel estimates. This reciprocity is impacted by the transmit and receive front ends which are non-reciprocal and hence a calibration is required to obtain the downlink (DL) channels from the UL channel estimates. The Cramer-Rao Bound (CRB) for reciprocity calibration and an optimal algorithm were derived in [1], [2] recently. In this work, we extend this and derive a generalized CRB that applies to both coherent and non-coherent calibration schemes (introduced in [1]). More importantly, we provide original mean squared error analysis for the commonly used Least-Squares (LS) estimator under different parameter constraints, and relate it to the CRB. Finally, we compare some antenna grouping strategies for calibration based on their CRB.

Document Doi Bibtex

Title:Performance analysis of reciprocity calibration in massive MIMO
Type:Conference
Language:English
City:Cannes
Country:FRANCE
Date:
Department:Communication systems
Eurecom ref:5881
Copyright: © 2019 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Bibtex: @inproceedings{EURECOM+5881, doi = {http://dx.doi.org/10.1109/SPAWC.2019.8815591}, year = {2019}, title = {{P}erformance analysis of reciprocity calibration in massive {MIMO}}, author = {{G}opala, {K}alyana and {S}lock, {D}irk {TM}}, booktitle = {{SPAWC} 2019, 20th {IEEE} {I}nternational {W}orkshop on {S}ignal {P}rocessing {A}dvances in {W}ireless {C}ommunications, 2-5 {J}uly 2019, {C}annes, {F}rance }, address = {{C}annes, {FRANCE}}, month = {07}, url = {http://www.eurecom.fr/publication/5881} }
See also: