MMSE Based Block Diagonalization for Cognitive Radio MIMO Broadcast Channels
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Kyoung-Jae | - |
dc.contributor.author | Lee, Inkyu | - |
dc.date.accessioned | 2021-09-07T08:05:28Z | - |
dc.date.available | 2021-09-07T08:05:28Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2011-10 | - |
dc.identifier.issn | 1536-1276 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/111555 | - |
dc.description.abstract | In this paper, we present a linear precoder design for cognitive radio (CR) multi-user multiple-input multiple-output (MU-MIMO) downlink systems where unlicensed secondary users (SUs) can simultaneously utilize the same spectrum used by a licensed primary user (PU). Although a zero-forcing block diagonalization (ZF-BD) precoder is extended to the CR network with the PU, a transmit power boost problem occurs. Therefore, we propose a regularized BD precoder method based on the minimum mean-squared error (MMSE) criteria subject to the interference power constraint under a predetermined threshold for the PU. As a result, the proposed CR-MMSE-BD scheme improves the signal-to-interference-plus-noise ratio at each SU's receiver, compared to the ZF-BD based method. The simulation results demonstrate that the proposed algorithm outperforms the ZF based technique for CR MU-MIMO downlink systems. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.subject | SYSTEMS | - |
dc.title | MMSE Based Block Diagonalization for Cognitive Radio MIMO Broadcast Channels | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Inkyu | - |
dc.identifier.doi | 10.1109/TWC.2011.081611.101853 | - |
dc.identifier.scopusid | 2-s2.0-80855147422 | - |
dc.identifier.wosid | 000297247100004 | - |
dc.identifier.bibliographicCitation | IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, v.10, no.10, pp.3139 - 3144 | - |
dc.relation.isPartOf | IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | - |
dc.citation.title | IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | - |
dc.citation.volume | 10 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 3139 | - |
dc.citation.endPage | 3144 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Telecommunications | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.relation.journalWebOfScienceCategory | Telecommunications | - |
dc.subject.keywordPlus | SYSTEMS | - |
dc.subject.keywordAuthor | Cognitive radio | - |
dc.subject.keywordAuthor | multi-user MIMO | - |
dc.subject.keywordAuthor | minimum mean-squared error (MMSE) | - |
dc.subject.keywordAuthor | block diagonalization (BD) | - |
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