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Analysis of Phase Noise Effects in OFDM Transmit Diversity Systems  

Lee, Jong-Gil (인천대학교 정보통신공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.10, no.2, 2006 , pp. 243-249 More about this Journal
Abstract
In this paper, the phase noise effects of OFDM transmission diversity systems were analyzed. Since OFDM communication system is very sensitive to phase noise, the system performance may degrade seriously due to the increase of subcarrier interferences and system noise. Therefore, The phase noise model was suggested and its distribution and power were varied to investigate the effects of phase noise on the system performance. The degree of the system performance degradation depends on the specific diversity structures of transmission systems. Here, the performances of OFDM systems with two and three antennas transmission diversity were analyzed and compared with that of systems without transmission diversity as the phase noise characteristics varied.
Keywords
phase noise; OFDM; transmit diversity; interferences;
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