On identifiability of OFDM blind channel estimation

被引：0
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作者：
Chotikakamthorn, Nopporn
Suzuki, Hiroshi
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来源：
IEEE Vehicular Technology Conference | / 4卷
关键词：
Frequency division multiplexing - Communication channels (information theory) - Maximum likelihood estimation - Phase shift keying;
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学科分类号：
摘要：
A problem of blind channel estimation for coherent detection in OFDM systems is considered. It is shown in this paper that the channel is identifiable, given only a received data set obtained over one OFDM symbol duration. Sufficient condition for the channel to be identifiable is given, with outline of the proof included. In addition, a compact form of the maximum likelihood channel estimator for PSK modulation scheme is derived. Experimental results are provided to demonstrate the performance of the proposed method.
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页码：2358 / 2361
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