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A Comparative Performance Analysis of STBC-OFDM Systems Under Cellular Mobile Environments  

Jung Ho-Chul (School of Avionics and Telecommunications, Hankuk Aviation University)
Chang Eun-Kyoung (School of Avionics and Telecommunications, Hankuk Aviation University)
Park Hyung-Rae (School of Avionics and Telecommunications, Hankuk Aviation University)
Jang Eun-Young (School of Electrical and Electronic Engineering, Kongju National University)
Kim Chang-Ju (Group of Radio Technology Development, ETRI)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.43, no.3, 2006 , pp. 18-26 More about this Journal
Abstract
In this paper, we compare the performance of three representative STBC schemes, Alamouti's, Tarokh's and quasi-orthogonal schemes under cellular mobile environments when they are applied to the OFDM system. We first study the encoding algorithms of the STBC schemes along with the development of adequate demodulation algorithms. The OFDM parameters are selected by considering the Wibro system and adequate modulation schemes are assigned for each STBC schemes according to the transmission rate from 2bps/Hz to 4bps/Hz. The STBC-OFDM systems employ Walsh orthogonal codes covered along the frequency domain in order to estimate the channel information for different transmit antennas. We finally compare the performance of the STBC-OFDM systems according to the transmission rate through computer simulations in various mobile channel environments.
Keywords
STBC; OFDM; MIMO;
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