A Subspace Method for Blind Channel Estimation in CP-free OFDM Systems

Signal Processing: An International Journal

Xuefu Zhou¹  Xiaodong Yue¹ 

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关键词: OFDM;    Channel Estimation;    Dispersive Channel;    Wireless Communications;   

DOI  :  

学科分类：物理（综合）

来源: Computer Science Journals

【 摘 要 】

In this paper, a subspace method is proposed for blind channel estimation in orthogonal frequency-division multiplexing (OFDM) systems over time-dispersive channel. The proposed method does not require a cyclic prefix (CP) and thus leading to higher spectral efficiency. By exploiting the block Toeplitz structure of the channel matrix, the proposed blind estimation method performs satisfactorily with very few received OFDM blocks. Numerical simulations demonstrate the superior performance of the proposed algorithm over methods reported earlier in the literature.

【 授权许可】

Unknown