FDD massive MIMO downlink channel estimation via selective sparse coding over AOA/AOD cluster dictionaries

Basit Öğe Kaydı
dc.authorid0000-0003-3375-0310
dc.authorid0000-0002-7094-8521
dc.contributor.authorNazzal, Mahmoud
dc.contributor.authorFurqan, Haji Muhammad
dc.contributor.authorArslan, Hüseyin
dc.date.accessioned10.07.201910:49:13
dc.date.accessioned2019-07-10T19:38:20Z
dc.date.available10.07.201910:49:14
dc.date.available2019-07-10T19:38:20Z
dc.date.issued2018
dc.departmentİstanbul Medipol Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümü
dc.description.abstractSparse coding over a redundant dictionary has recently been used as a framework for downlink channel estimation in frequency division duplex massive multiple-input multiple-output antenna systems. This usage allows for efficiently reducing the inherently high training and feedback overheads. We present an algorithm for downlink channel estimation via selective sparse coding over multiple cluster dictionaries. A channel training set is divided into clusters based on the angle of the arrival/departure of the majority physical subpaths corresponding to each channel tap. Then, a compact dictionary is trained in each cluster. Channel estimation is done by first identifying the channel cluster and then using its dictionary for reconstruction. This selective sparse coding allows for adaptive regularization via sparse model selection, thereby offering additional regularization to the ill-posed channel estimation problem. We empirically validate the selectivity of the cluster dictionaries. Simulation results show the advantage of the proposed algorithm in achieving better estimation quality at lower computational cost, as compared the case of using standard sparse coding.
dc.description.sponsorshipIEEEen_US
dc.identifier.citationNazzal, M., Furqan, H. ve Arslan, H. (2018). FDD massive MIMO downlink channel estimation via selective sparse coding over AOA/AOD cluster dictionaries. 29th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC). Bologna, Italy, September 09-12, 2018. https://dx.doi.org/10.1109/PIMRC.2018.8580685
dc.identifier.doi10.1109/PIMRC.2018.8580685
dc.identifier.isbn9781538660096
dc.identifier.scopusqualityN/A
dc.identifier.urihttps://hdl.handle.net/20.500.12511/1578
dc.identifier.urihttps://dx.doi.org/10.1109/PIMRC.2018.8580685
dc.identifier.volume2018
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherInstitute of Electrical and Electronics Engineers Inc.
dc.relation.ecinfo:eu-repo/grantAgreement/TUBITAK/SOBAG/2221
dc.relation.ispartof29th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)en_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleFDD massive MIMO downlink channel estimation via selective sparse coding over AOA/AOD cluster dictionaries
dc.typeConference Object

Dosyalar

Orijinal paket
Listeleniyor 1 - 1 / 1
Küçük Resim
İsim:
Furqan, H..pdf
Boyut:
216 KB
Biçim:
Adobe Portable Document Format
Açıklama:
Tam Metin / Full Text
İndir

Koleksiyon

Scopus İndeksli Yayınlar Koleksiyonu
Bildiri Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu