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Article: A fast-decodable code structure for linear dispersion codes
Title | A fast-decodable code structure for linear dispersion codes |
---|---|
Authors | |
Keywords | Complexity of sphere decoding Fast-decodable code Linear dispersion code MIMO system |
Issue Date | 2009 |
Publisher | IEEE. |
Citation | Ieee Transactions On Wireless Communications, 2009, v. 8 n. 9, p. 4417-4420 How to Cite? |
Abstract | This paper proposes the design of a new family of fast-decodable, full-rank, flexible-rate linear dispersion codes (LDCs) for MIMO systems with arbitrary numbers of transmit and receive antennas. The codewords of LDCs can be expressed as a linear combination of certain dispersion matrices and, in this new family of LDCs, we propose to have orthogonal rows in as many dispersion matrices as possible. We show that, with the proposed code, the number of levels in the tree search and hence the complexity of the sphere decoder (SD) at the receiver can be substantially reduced. Monte Carlo computer simulation has shown that the LDCs with and without the orthogonal structure have nearly identical bit-error-rate (BER) performances. However, the complexity of the SD used for decoding the proposed family of LDCs is substantially reduced. © 2009 IEEE. |
Persistent Identifier | http://hdl.handle.net/10722/124674 |
ISSN | 2023 Impact Factor: 8.9 2023 SCImago Journal Rankings: 5.371 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Dai, XG | en_HK |
dc.contributor.author | Cheung, SW | en_HK |
dc.contributor.author | Yuk, TI | en_HK |
dc.date.accessioned | 2010-10-31T10:47:49Z | - |
dc.date.available | 2010-10-31T10:47:49Z | - |
dc.date.issued | 2009 | en_HK |
dc.identifier.citation | Ieee Transactions On Wireless Communications, 2009, v. 8 n. 9, p. 4417-4420 | en_HK |
dc.identifier.issn | 1536-1276 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/124674 | - |
dc.description.abstract | This paper proposes the design of a new family of fast-decodable, full-rank, flexible-rate linear dispersion codes (LDCs) for MIMO systems with arbitrary numbers of transmit and receive antennas. The codewords of LDCs can be expressed as a linear combination of certain dispersion matrices and, in this new family of LDCs, we propose to have orthogonal rows in as many dispersion matrices as possible. We show that, with the proposed code, the number of levels in the tree search and hence the complexity of the sphere decoder (SD) at the receiver can be substantially reduced. Monte Carlo computer simulation has shown that the LDCs with and without the orthogonal structure have nearly identical bit-error-rate (BER) performances. However, the complexity of the SD used for decoding the proposed family of LDCs is substantially reduced. © 2009 IEEE. | - |
dc.language | eng | en_HK |
dc.publisher | IEEE. | - |
dc.relation.ispartof | IEEE Transactions on Wireless Communications | en_HK |
dc.rights | ©2009 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. | - |
dc.subject | Complexity of sphere decoding | en_HK |
dc.subject | Fast-decodable code | en_HK |
dc.subject | Linear dispersion code | en_HK |
dc.subject | MIMO system | en_HK |
dc.title | A fast-decodable code structure for linear dispersion codes | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1536-1276&volume=8&issue=9&spage=4417&epage=4420&date=2009&atitle=A+fast-decodable+code+structure+for+linear+dispersion+codes | - |
dc.identifier.email | Cheung, SW:swcheung@eee.hku.hk | en_HK |
dc.identifier.email | Yuk, TI:tiyuk@eee.hku.hk | en_HK |
dc.identifier.authority | Cheung, SW=rp00102 | en_HK |
dc.identifier.authority | Yuk, TI=rp00210 | en_HK |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1109/TWC.2009.080841 | en_HK |
dc.identifier.scopus | eid_2-s2.0-70350331615 | en_HK |
dc.identifier.hkuros | 180290 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-70350331615&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 8 | en_HK |
dc.identifier.issue | 9 | en_HK |
dc.identifier.spage | 4417 | en_HK |
dc.identifier.epage | 4420 | en_HK |
dc.identifier.isi | WOS:000269621700009 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Dai, XG=23481122600 | en_HK |
dc.identifier.scopusauthorid | Cheung, SW=7202472784 | en_HK |
dc.identifier.scopusauthorid | Yuk, TI=6603685705 | en_HK |
dc.identifier.issnl | 1536-1276 | - |