Blind Channel Estimation of MIMO-OFDM Based on FDPM

被引:0
|
作者
Wang, Gang [1 ,2 ]
Zhu, Ming [1 ]
Cai, Hua [3 ]
机构
[1] Chinese Acad Sci, Changchun Inst Phys, Fine Mechanics Phy, Changchun 130033, Peoples R China
[2] Grad Univ Chinese Acad Sci, Changchun 130033, Peoples R China
[3] Jilin Univ, Coll Commun Engn, POB 150, Changchun 130012, Peoples R China
关键词
Blind channel estimation; subspace tracking; FDPM; MIMO-OFDM; SUBSPACE-BASED BLIND; ALGORITHM; TRACKING; SYSTEMS;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Subspace based methods have been widely discussed in multichannel estimation including MIMO-OFDM system. However, direct subspace methods suffer from heavy computation complexity of O(N-3). In this paper, a new subspace tracking technique called Fast Data Projection Method (FDPM) is proposed for adaptively tracking the noise subspace. The new algorithm has low complexity of O(NL) and is the only numerically stable, low complexity algorithm for tracking subspaces corresponding to the smallest singular values. Simulation results show that the proposed scheme has similar performance to the original.
引用
收藏
页码:1110 / +
页数:2
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