Efficient channel blind estimator for multiuser system with conjugate cyclostationarity

doi:1005-8885 (2008) 01-0001-05

中国邮电高校学报(英文) ›› 2008, Vol. 15 ›› Issue (4): 1-6.doi: 1005-8885 (2008) 01-0001-05

• Wireless • 下一篇

Efficient channel blind estimator for multiuser system with conjugate cyclostationarity

周克,曹士珂，张力军

Communication and Information Engineering College, Nanjing University of Posts and Telecommunications, Nanjing 210003, China

收稿日期:2008-05-04 修回日期:2008-07-08 出版日期:2008-12-30
通讯作者: 周克

Efficient channel blind estimator for multiuser system with conjugate cyclostationarity

ZHOU Ke, CAO Shi-ke, ZHANG Li-jun

Communication and Information Engineering College, Nanjing University of Posts and Telecommunications, Nanjing 210003, China

Received:2008-05-04 Revised:2008-07-08 Online:2008-12-30
Contact: ZHOU Ke

摘要/Abstract

摘要：

The problem of blind channel identification in a multiuser system is considered in this article. For this purpose, a blind identification algorithm is proposed based on the conjugate cyclostationarity of the received signal. The new approach contains a two-stage identification procedure. First, the separation technique in the cyclic domain is used to separate the second-order cyclic statistics for each user. Second, a subspace algorithm based on the rational subspace theory is exploited to estimate the desired channel. Theoretical analysis and simulation results show that this algorithm is suitable for a multiuser system. Compared with other methods, the algorithm shows good performance even in a bad situation when the number of users is large and the diversity condition is unavailable.

关键词:

conjugate;cyclostationarity,;rational;subspace;theory,;subspace;algorithm

Abstract:

Key words:

conjugate cyclostationarity;rational subspace theory;subspace algorithm

中图分类号:

TN919

ZHOU Ke, CAO Shi-ke, ZHANG Li-jun

. Efficient channel blind estimator for multiuser system with conjugate cyclostationarity[J]. Acta Metallurgica Sinica(English letters), 2008, 15(4): 1-6.

参考文献

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Efficient channel blind estimator for multiuser system with conjugate cyclostationarity

Efficient channel blind estimator for multiuser system with conjugate cyclostationarity

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