Graduate School and Research Center in Digital Sciences

Coordinated beam selection for training overhead reduction in FDD massive MIMO

Maschietti, Flavio; Fodor, Gabor; Gesbert, David; Kerret, Paul de

ISWCS 2019, 16th International Symposium on Wireless Communication Systems, 27-30 August 2019, Oulu, Finland


While acquiring channel state information at the transmitter (CSIT) in time division duplexing systems can exploit channel reciprocity, acquiring accurate CSIT in frequency division duplexing massive multiple-input multiple-output systems is not trivial. The two main difficulties in these systems are the scalability of the downlink reference signals and the overhead associated with the required uplink feedback. Although several approaches for ensuring scalability and reducing overhead by leveraging some presumed channel properties have been studied, existing schemes do not offer a fully satisfactory solution. In this work, we propose a novel cooperative method which exploits low-rate beam-related information exchange between the mobile terminals, reduces the overhead under the assumption of the so-called gridof-beams design, and strikes a balance between CSIT acquisition overhead, user spatial separability and coordination complexity.

Document Doi Bibtex

Title:Coordinated beam selection for training overhead reduction in FDD massive MIMO
Type:Conference
Language:English
City:Oulu
Country:FINLAND
Date:
Department:Communication systems
Eurecom ref:5961
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+5961, doi = {http://dx.doi.org/10.1109/ISWCS.2019.8877306}, year = {2019}, title = {{C}oordinated beam selection for training overhead reduction in {FDD} massive {MIMO}}, author = {{M}aschietti, {F}lavio and {F}odor, {G}abor and {G}esbert, {D}avid and {K}erret, {P}aul de}, booktitle = {{ISWCS} 2019, 16th {I}nternational {S}ymposium on {W}ireless {C}ommunication {S}ystems, 27-30 {A}ugust 2019, {O}ulu, {F}inland\&\#13;\&\#10;}, address = {{O}ulu, {FINLAND}}, month = {08}, url = {http://www.eurecom.fr/publication/5961} }
See also: