A Generalized Blind Channel Estimation Algorithm for OFDM Systems with Cyclic Prefix

被引:0
|
作者
Fang, Shih-Hao [1 ]
Chen, Ju-Ya [2 ]
Shieh, Ming-Der [1 ]
Lin, Jing-Shiun [1 ]
机构
[1] Natl Cheng Kung Univ, Dept Elect Engn, Tainan 701, Taiwan
[2] Natl Sun Yat Sen Univ, Inst Commun Engn, Kaohsiung, Taiwan
关键词
D O I
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中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A subspace-based blind channel estimation algorithm with cyclic prefix is proposed in this paper. A systematic approach is used to construct a new signal matrix in the proposed algorithm. Compared with conventional blind channel estimation algorithm, the proposed algorithm has lower computational complexity and higher probability of full row rank for the corresponding signal matrix. In addition, fewer OFDM symbols can be used to satisfy the necessary condition for achieving a full-row-rank signal matrix. Simulation results show that the proposed algorithm outperforms conventional methods in mean-squared error and bit error rate under static channel. Even with a smaller number of received OFDM symbols, the proposed algorithm can perform well.
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页码:2469 / +
页数:2
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