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A Comparative Performance Analysis of Space-Time Block Codes for OFDM Systems Under Rayleigh Fading Environments  

Kim Young Sun (한국항공대학교 항공전자 및 정보통신공학부)
Jung Ho Chul (한국항공대학교 항공전자 및 정보통신공학부)
Lee Sang Ho (삼성전자 네트웍 사업부)
Kim Chang ju (한국전자통신연구원 전파기술연구그룹)
Park Hyung Rae (한국항공대학교 항공전자 및 정보통신공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.29, no.10A, 2004 , pp. 1147-1158 More about this Journal
Abstract
In this paper we design STBC-OFDM systems by applying several STBC schemes to the OFEM system and show their comparative analysis results obtained through computer simulations under Rayleigh fading environments, considering the effect of channel estimation error. We first consider the space-time coding algorithms of major STBC schemes, together with their demodulation algorithms. We then select the OFDMparameters considering mobile environments and design the STBC-OFDM systems by choosing one of digital modulation schemes such as QPSK, BPSK, 16QAM, 64QAM, and 256QAM according to the transmission rate, and describe the block diagrams of the demodulator and channel estimator. We finally compare and analyze the BER performances of the STBC-OFDM systems according to the transmission rate and the number of receive antennas.
Keywords
STBC; MMO; OFDM;
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