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This letter addresses the issues on performance degradation caused by channel estimation error of quasiorthogonal space-time block (QO-STBC) coded OFDM systems employing array processing decoder. The least square (LS) channel estimator is employed to obtain the required channel state information (CSI). Taking mean square error (MSE) as a performance metric, we evaluate the performance of the LS estimator in MIMO-OFDM systems over frequency selective channels, and its impact on symbol error rate (SER) using both analysis and simulations.
Published in:
Communications Letters, IEEE
(Volume:13
,
Issue:
4
)
Date of Publication: April 2009
- Page(s):
- 212 - 214
- ISSN :
- 1089-7798
- INSPEC Accession Number:
- 10587140
- Digital Object Identifier :
- 10.1109/LCOMM.2009.081031
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 17 April 2009
- Issue Date :
- April 2009
- Sponsored by :
- IEEE Communications Society
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