Ecole d'ingénieur et centre de recherche en Sciences du numérique

A rate splitting strategy for mitigating intra-cell pilot contamination in massive MIMO

Kurisummoottil Thomas, Christo; Clerck, Bruno; Sanguinetti, Luca; Slock, Dirk TM

ICC 2020, IEEE International Conference on Communications Workshops, 7-11 June 2020, Dublin, Ireland

The spectral efficiency (SE) of Massive MIMO (MaMIMO) systems is affected by low quality channel estimates. Rate-Splitting (RS) has recently gained some interest in multiuser multiple antenna systems as an effective means to mitigate the multi-user interference due to imperfect channel state information. This paper investigates the benefits of RS in the downlink of a single-cell MaMIMO system when all the users use the same pilot sequence for channel estimation. Novel expressions for the SE achieved in the downlink by a single-layer RS strategy (that relies on a single successive interference cancellation at each user side) are derived and used to design precoding schemes and power allocation strategies for common and private messages. Numerical results are used to show that the proposed RS solution achieves higher spectral efficiency that conventional MaMIMO with maximum ratio precoding.

Document Doi Arxiv Bibtex

Titre:A rate splitting strategy for mitigating intra-cell pilot contamination in massive MIMO
Type:Conférence
Langue:English
Ville:Dublin
Pays:IRLANDE
Date:
Département:Systèmes de Communication
Eurecom ref:6209
Copyright: © 2020 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+6209, doi = {http://dx.doi.org/10.1109/ICCWorkshops49005.2020.9145128}, year = {2020}, title = {{A} rate splitting strategy for mitigating intra-cell pilot contamination in massive {MIMO}}, author = {{K}urisummoottil {T}homas, {C}hristo and {C}lerck, {B}runo and {S}anguinetti, {L}uca and {S}lock, {D}irk {TM}}, booktitle = {{ICC} 2020, {IEEE} {I}nternational {C}onference on {C}ommunications {W}orkshops, 7-11 {J}une 2020, {D}ublin, {I}reland }, address = {{D}ublin, {IRLANDE}}, month = {06}, url = {http://www.eurecom.fr/publication/6209} }
Voir aussi: