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A performance analysis of hybrid V-BLAST/space-time block code and V-BLAST/space-frequency OFDM


Citation

Chong, J. H. and Khatun, Sabira and Noordin, Nor Kamariah and Mohd Ali, Borhanuddin and Syed, M. J. (2008) A performance analysis of hybrid V-BLAST/space-time block code and V-BLAST/space-frequency OFDM. International Review of Electrical Engineering, 3 (6). pp. 1054-1062. ISSN 1827-6660

Abstract

In this paper, two hybrid multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) transceiver schemes are introduced by combining the vertical Bell-labs layered space-time (V-BLAST) with Alamouti's space-time block codes (STBC) and V-BLAST with space-frequency codes (SF), denoted V-BLAST/STBC and V-BLAST/SF respectively. The MIMO-OFDM system consists of four transmit and four receive antennas is modeled over Monte-Carlo time-variant channel model in the delay spread of 200ns and different maximum Doppler frequency. Special training sequences are used in the least square (LS) channel estimation method to obtain a desirable crest-factor of the transmitted training signal and eliminate the influence of inter-symbol interference (ISI) on the channel estimation performance. The symbol error rate (SER) performance of V-BLAST/STBC OFDM and V-BLAST/SF OFDM is analyzed. Simulation results show that the SER performance of V-BLAST/SF OFDM outperforms V-BLAST/STBC OFDM in MIMO channel model with high Doppler frequency.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Publisher: Praise Worthy Prize
Keywords: Space-time block codes; Space-frequency; Inter-symbol interference; V-BLAST
Depositing User: Nabilah Mustapa
Date Deposited: 16 May 2015 04:18
Last Modified: 23 Nov 2015 03:37
URI: http://psasir.upm.edu.my/id/eprint/12779
Statistic Details: View Download Statistic

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