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Article: A fast LMMSE channel estimation method for OFDM systems
Title | A fast LMMSE channel estimation method for OFDM systems |
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Authors | |
Issue Date | 2009 |
Publisher | Hindawi Publishing Corp. The Journal's web site is located at http://www.hindawi.com/journals/wcn/index.html |
Citation | Eurasip Journal On Wireless Communications And Networking, 2009, v. 2009, article no. 752895 How to Cite? |
Abstract | A fast linear minimum mean square error (LMMSE) channel estimation method has been proposed for Orthogonal Frequency Division Multiplexing (OFDM) systems. In comparison with the conventional LMMSE channel estimation, the proposed channel estimation method does not require the statistic knowledge of the channel in advance and avoids the inverse operation of a large dimension matrix by using the fast Fourier transform (FFT) operation. Therefore, the computational complexity can be reduced significantly. The normalized mean square errors (NMSEs) of the proposed method and the conventional LMMSE estimation have been derived. Numerical results show that the NMSE of the proposed method is very close to that of the conventional LMMSE method, which is also verified by computer simulation. In addition, computer simulation shows that the performance of the proposed method is almost the same with that of the conventional LMMSE method in terms of bit error rate (BER). Copyright © 2009 W. Zhou and W. H. Lam. |
Persistent Identifier | http://hdl.handle.net/10722/58814 |
ISSN | 2023 Impact Factor: 2.3 2023 SCImago Journal Rankings: 0.661 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Zhou, W | en_HK |
dc.contributor.author | Lam, WH | en_HK |
dc.date.accessioned | 2010-05-31T03:37:22Z | - |
dc.date.available | 2010-05-31T03:37:22Z | - |
dc.date.issued | 2009 | en_HK |
dc.identifier.citation | Eurasip Journal On Wireless Communications And Networking, 2009, v. 2009, article no. 752895 | en_HK |
dc.identifier.issn | 1687-1472 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/58814 | - |
dc.description.abstract | A fast linear minimum mean square error (LMMSE) channel estimation method has been proposed for Orthogonal Frequency Division Multiplexing (OFDM) systems. In comparison with the conventional LMMSE channel estimation, the proposed channel estimation method does not require the statistic knowledge of the channel in advance and avoids the inverse operation of a large dimension matrix by using the fast Fourier transform (FFT) operation. Therefore, the computational complexity can be reduced significantly. The normalized mean square errors (NMSEs) of the proposed method and the conventional LMMSE estimation have been derived. Numerical results show that the NMSE of the proposed method is very close to that of the conventional LMMSE method, which is also verified by computer simulation. In addition, computer simulation shows that the performance of the proposed method is almost the same with that of the conventional LMMSE method in terms of bit error rate (BER). Copyright © 2009 W. Zhou and W. H. Lam. | en_HK |
dc.language | eng | en_HK |
dc.publisher | Hindawi Publishing Corp. The Journal's web site is located at http://www.hindawi.com/journals/wcn/index.html | en_HK |
dc.relation.ispartof | Eurasip Journal on Wireless Communications and Networking | en_HK |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | A fast LMMSE channel estimation method for OFDM systems | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1687-1472&volume=2009&spage=13 pages&epage=&date=2009&atitle=A+Fast+LMMSE+Channel+Estimation+Method+for+OFDM+Systems | en_HK |
dc.identifier.email | Lam, WH:whlam@eee.hku.hk | en_HK |
dc.identifier.authority | Lam, WH=rp00136 | en_HK |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1155/2009/752895 | en_HK |
dc.identifier.scopus | eid_2-s2.0-68949107481 | en_HK |
dc.identifier.hkuros | 162753 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-68949107481&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 2009 | en_HK |
dc.identifier.spage | article no. 752895 | - |
dc.identifier.epage | article no. 752895 | - |
dc.identifier.eissn | 1687-1499 | - |
dc.identifier.isi | WOS:000268253400001 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Zhou, W=35312980700 | en_HK |
dc.identifier.scopusauthorid | Lam, WH=7203021916 | en_HK |
dc.identifier.issnl | 1687-1472 | - |