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http://dx.doi.org/10.9723/jksiis.2020.25.5.013

Sign Reversal Channel Switching Method for Space-Frequency Block Code in Orthogonal Frequency Division Multiplexing System  

Jung, Hyeok-Koo (한밭대학교 정보통신공학과)
Publication Information
Journal of Korea Society of Industrial Information Systems / v.25, no.5, 2020 , pp. 13-21 More about this Journal
Abstract
This paper proposes a sign reversal channel switching method in space-frequency block code for orthogonal frequency division multiplexing system. In case of sending source data on other antenna, it is necessary for the receiver to change combining method according to the channel variation. If one does not know the predefined channel switching sequence, it is not possible to decode the received data precisely. In transmit data symbols' exchanges for a channel switching, data symbols are exchanged according to a format of space-frequency block code. In this paper, we proposes a simple sign reversal method except exchanging data symbols between transmit antennas. It is shown that this method occurs another combining method for a simple encryption in the receiver.
Keywords
Combining; Space frequency block code; Sign reversal; Orthogonal frequency division multiplexing; Channel switching;
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Times Cited By KSCI : 2  (Citation Analysis)
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