Low Complexity Pre-Equalization Algorithms for Zero-Padded Block Transmission

被引：7

作者：

Wen, Wenkun ^{[1
]}

Xia, Minghua ^{[2
]}

Wu, Yik-Chung ^{[2
]}

机构：

[1] New Postcom Equipment Co Ltd, LTE R&D Ctr, Guangzhou 510663, Guangdong, Peoples R China

[2] Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2010年 / 9卷 / 08期

关键词：

Asymptotic equivalence; matched zero-padded (MZP) block transmission; pre-equalization; CHANNEL ESTIMATION; OFDM; SYNCHRONIZATION; SCHEMES;

D O I：

10.1109/TWC.2010.061710.090411

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：

The zero-padded block transmission with linear time-domain pre-equalizer is studied in this paper. A matched filter is exploited to guarantee the stability of the zero-forcing (ZF) and minimum mean square error (MMSE) pre-equalization. Then, in order to compute the pre-equalizers efficiently, an asymptotic decomposition is developed for the positive-definite Hermitian banded Toeplitz matrix. Compared to the direct matrix inverse methods or the Levinson-Durbin algorithm, the computational complexity of the proposed algorithm is significantly decreased and there is no bit error rate degradation when data block length is large.

引用

页码：2498 / 2504

页数：7

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