Linear Precoder Designs for Cognitive Radio Multiuser MIMO Downlink Systems

In this paper, we develop linear precoding methods for cognitive radio (CR) multi-user multiple-input multiple-output (MU-MIMO) broadcast systems where unlicensed secondary users (SUs) simultaneously use the same spectrum of the licensed primary user (PU). When the zero-forcing block diagonalization...

Full description

Saved in:
Bibliographic Details
Published in:2011 IEEE International Conference on Communications (ICC) pp. 1 - 5
Main Authors: Kyoung-Jae Lee, Hakjea Sung, Inkyu Lee
Format: Conference Proceeding
Language:English
Published: IEEE 01.06.2011
Subjects:
Downlink
Interference
Matrix decomposition
MIMO
Receiving antennas
Signal to noise ratio
ISBN:9781612842325, 1612842321
ISSN:1550-3607
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Abstract In this paper, we develop linear precoding methods for cognitive radio (CR) multi-user multiple-input multiple-output (MU-MIMO) broadcast systems where unlicensed secondary users (SUs) simultaneously use the same spectrum of the licensed primary user (PU). When the zero-forcing block diagonalization (ZF-BD) precoder is extended to the CR network, a noise enhancement problem occurs. Therefore, we propose a regularized BD precoder based on the minimum mean-square error (MMSE) criteria subject to zero interference constraint for the PU. As a result, the proposed MMSE-BD scheme improves the signal-to-interference-plus-noise ratio at each SU's receiver compared to the ZF-BD based method. Simulation results demonstrate that the proposed algorithm outperforms the ZF based technique by more than 5 dB at the sum-rate 10 bps/Hz for CR MU-MIMO downlink systems.
AbstractList In this paper, we develop linear precoding methods for cognitive radio (CR) multi-user multiple-input multiple-output (MU-MIMO) broadcast systems where unlicensed secondary users (SUs) simultaneously use the same spectrum of the licensed primary user (PU). When the zero-forcing block diagonalization (ZF-BD) precoder is extended to the CR network, a noise enhancement problem occurs. Therefore, we propose a regularized BD precoder based on the minimum mean-square error (MMSE) criteria subject to zero interference constraint for the PU. As a result, the proposed MMSE-BD scheme improves the signal-to-interference-plus-noise ratio at each SU's receiver compared to the ZF-BD based method. Simulation results demonstrate that the proposed algorithm outperforms the ZF based technique by more than 5 dB at the sum-rate 10 bps/Hz for CR MU-MIMO downlink systems.
Author Hakjea Sung
Inkyu Lee
Kyoung-Jae Lee
Author_xml – sequence: 1
  surname: Kyoung-Jae Lee
  fullname: Kyoung-Jae Lee
  email: kyoungjae@korea.ac.kr
  organization: Sch. of Electr. Eng., Korea Univ., Seoul, South Korea
– sequence: 2
  surname: Hakjea Sung
  fullname: Hakjea Sung
  email: jay.sung@samsung.com
  organization: Samsung Electron., Suwon, South Korea
– sequence: 3
  surname: Inkyu Lee
  fullname: Inkyu Lee
  email: inkyu@korea.ac.kr
  organization: Sch. of Electr. Eng., Korea Univ., Seoul, South Korea
BookMark eNo1kF1LwzAYhSNOcJu7F7zJH-jMmzRJcymdH8OOiR_g3ejSNyPapZJ0yv69A-fV4cDDgeeMyCB0AQm5BDYFYObaWzvlDGAqjRKg1QkZgQJe5FyI91MyMbr471wOyBCkZJlQTJ-TUUofjEluBAzJY-UD1pE-RbRdg5HOMPlNSNR1kZbdJvjefyN9rhvf0cWu7f0uHajFfLGks-4ntD580pd96nGbLsiZq9uEk2OOydvd7Wv5kFXL-3l5U2UetOwza1mOuaobZwDVWuhiLS0YcBpdrlHrgql1c_CwOZMWkTfAm8I4xRzLDaIYk6u_XY-Iq6_ot3Xcr45HiF_4WFF3
ContentType Conference Proceeding
DBID 6IE
6IH
CBEJK
RIE
RIO
DOI 10.1109/icc.2011.5963176
DatabaseName IEEE Electronic Library (IEL) Conference Proceedings
IEEE Proceedings Order Plan (POP) 1998-present by volume
IEEE Xplore All Conference Proceedings
IEEE/IET Electronic Library
IEEE Proceedings Order Plans (POP) 1998-present
DatabaseTitleList
Database_xml – sequence: 1
  dbid: RIE
  name: IEEE Electronic Library (IEL)
  url: https://ieeexplore.ieee.org/
  sourceTypes: Publisher
DeliveryMethod fulltext_linktorsrc
Discipline Engineering
EISBN 161284233X
9781612842318
9781612842332
1612842313
EndPage 5
ExternalDocumentID 5963176
Genre orig-research
GroupedDBID 29F
29I
6IE
6IF
6IH
6IK
6IL
6IM
6IN
AAJGR
AAWTH
ABLEC
ACGFS
ADZIZ
ALMA_UNASSIGNED_HOLDINGS
BEFXN
BFFAM
BGNUA
BKEBE
BPEOZ
CBEJK
CHZPO
IEGSK
IJVOP
IPLJI
M43
OCL
RIE
RIL
RIO
ID FETCH-LOGICAL-i175t-cc04e46adf91e6b378b5c191f7ef47e77806bd233c405cee2d12d89f60f049ee3
IEDL.DBID RIE
ISBN 9781612842325
1612842321
ISICitedReferencesCount 10
ISICitedReferencesURI http://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=Summon&SrcAuth=ProQuest&DestLinkType=CitingArticles&DestApp=WOS_CPL&KeyUT=000296057104059&url=https%3A%2F%2Fcvtisr.summon.serialssolutions.com%2F%23%21%2Fsearch%3Fho%3Df%26include.ft.matches%3Dt%26l%3Dnull%26q%3D
ISSN 1550-3607
IngestDate Wed Aug 27 03:20:51 EDT 2025
IsPeerReviewed false
IsScholarly true
Language English
LinkModel DirectLink
MergedId FETCHMERGED-LOGICAL-i175t-cc04e46adf91e6b378b5c191f7ef47e77806bd233c405cee2d12d89f60f049ee3
PageCount 5
ParticipantIDs ieee_primary_5963176
PublicationCentury 2000
PublicationDate 2011-June
PublicationDateYYYYMMDD 2011-06-01
PublicationDate_xml – month: 06
  year: 2011
  text: 2011-June
PublicationDecade 2010
PublicationTitle 2011 IEEE International Conference on Communications (ICC)
PublicationTitleAbbrev icc
PublicationYear 2011
Publisher IEEE
Publisher_xml – name: IEEE
SSID ssj0052931
ssj0000668921
Score 1.8985246
Snippet In this paper, we develop linear precoding methods for cognitive radio (CR) multi-user multiple-input multiple-output (MU-MIMO) broadcast systems where...
SourceID ieee
SourceType Publisher
StartPage 1
SubjectTerms Downlink
Interference
Matrix decomposition
MIMO
Receiving antennas
Signal to noise ratio
Title Linear Precoder Designs for Cognitive Radio Multiuser MIMO Downlink Systems
URI https://ieeexplore.ieee.org/document/5963176
WOSCitedRecordID wos000296057104059&url=https%3A%2F%2Fcvtisr.summon.serialssolutions.com%2F%23%21%2Fsearch%3Fho%3Df%26include.ft.matches%3Dt%26l%3Dnull%26q%3D
hasFullText 1
inHoldings 1
isFullTextHit
isPrint
link http://cvtisr.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwlV07T8MwED61FQMsPFrEWx4YCXUetpO5pQKhlgqB1K1KLraUpUVtyu_nbKcFJBa2OLITy7bu5fu-A7jliChRFIFIDDkoeZgHOed5EBVGxryICxH7YhNqMklns2zagrsdFkZr7ZLP9L19dHf55RI3NlTWF3RaQiXb0FZKeqzWLp5CqjN11F5eCgtSY54rVZCckdzW5iPjhoQxmRBhw_W0bYvt_SXP-hWiJ_Zsfvar6opTOqPD_033CHrf6D023emlY2jpxQkc_CAe7MIzuaB0xKmbtpj2FRu6RI41IxOWDbYZRew1L6slcxhdG8xg46fxCxtaen3yYFlDdt6D99HD2-AxaMoqBBXZCnWAyBOdyLw0WahlEau0EEhum1HaJEorlXJZlFEcIxlzNNeoDKMyzYzkhtwJreNT6CyWC30GTJmIRkcJYmiSDDHD3GLTE_o-j6h1Dl27LPMPz5wxb1bk4u_Xl7DvI7Y2xnEFnXq10dewh591tV7duO3-AgQopDs
linkProvider IEEE
linkToHtml http://cvtisr.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwlV3JTsMwEB2VggRcWFrEjg8cCXUSL8m5pWrVhQoVqbcqmdhSLy3qwvczTtICEhducWQnlm3N5nlvAB45IiqUqSeFJQcl8RMv4TzxgtSqkKdhKsOi2IQeDqPJJB5V4GmHhTHG5Mln5tk95nf52QI3LlTWkHRafK32YF8KEfACrbWLqJDyjHJyr0IOS1JkBVuqJEmjuKvOR-YNiWMyIvyS7WnbltsbTB43ZogFtWf5u191V3K10z7534RPof6N32OjnWY6g4qZn8PxD-rBGvTICaVDTt2MQ7UvWStP5VgxMmJZc5tTxN6SbLZgOUrXhTPYoDt4ZS1HsE8-LCvpzuvw3n4ZNzteWVjBm5G1sPYQuTBCJZmNfaPSUEepRHLcrDZWaKN1xFWaBWGIZM7RXIPMD7IotopbciiMCS-gOl_MzSUwbQMaHQhE34oYMcbEodMFfZ8H1LqCmluW6UfBnTEtV-T679cPcNgZD_rTfnfYu4GjIn7rIh63UF0vN-YODvBzPVst7_Ot_wLGAaeC
openUrl ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=proceeding&rft.title=2011+IEEE+International+Conference+on+Communications+%28ICC%29&rft.atitle=Linear+Precoder+Designs+for+Cognitive+Radio+Multiuser+MIMO+Downlink+Systems&rft.au=Kyoung-Jae+Lee&rft.au=Hakjea+Sung&rft.au=Inkyu+Lee&rft.date=2011-06-01&rft.pub=IEEE&rft.isbn=9781612842325&rft.issn=1550-3607&rft.spage=1&rft.epage=5&rft_id=info:doi/10.1109%2Ficc.2011.5963176&rft.externalDocID=5963176
thumbnail_l http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/lc.gif&issn=1550-3607&client=summon
thumbnail_m http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/mc.gif&issn=1550-3607&client=summon
thumbnail_s http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/sc.gif&issn=1550-3607&client=summon