New Channel Estimation Scheme Exploiting Reliable Decision Feedback Symbols for OFDM Systems
international conference on consumer electronics(2006)
摘要
The conventional pilot-aided channel estimation schemes use the fixed number of pilots to estimate the channel. In this paper, the channel estimator exploits reliable decision feedback symbols as quasi-pilots. This new channel estimation scheme is commercially attractive without additional hardware in the receiver using DSP chips for the OFDM systems.
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关键词
ofdm modulation,chip,automatic repeat request
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