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학술대회 LS Codes Aided Channel Estimation for MIMO-OFDM Systems in Multipath Environment
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저자
김원섭, 정현규, 이광천, 전형석, 차종섭, 이혁재
발행일
200609
출처
Vehicular Technology Conference (VTC) 2006 (Fall), pp.862-866
DOI
https://dx.doi.org/10.1109/VTCF.2006.185
협약과제
06MM1300, 차세대 이동통신용 무선공간 채널 특성 연구, 이광천
초록
MIMO-OFDM system is one of the promising schemes for achieving high data rate in communication systems. In this paper, channel estimation techniques based on Loosely Synchronous (LS) codes are proposed for MIMO-OFDM systems. Since LS codes have perfect auto-correlation and cross-correlation functions within certain vicinity of the zero shifts, multiple antenna and multipath signal interference can be reduced substantially. Through simulations, it is shown that the proposed methods outperform both of least square and linear minimum mean square error (LMMSE) estimators. © 2006 IEEE.
키워드
Channel estimation, LS codes, MIMO-OFDM systems, Multipath channels
KSP 제안 키워드
Auto-Correlation, Channel estimation(CE), Communication system, Cross-Correlation, Estimation Technique, High data rate, Least Squares(LS), Linear minimum mean square error, MIMO-OFDM systems, Minimum Mean Square Error(MMSE), Multipath channels