ZPOFDM循环平稳性分析及在多载波信号识别中的应用

doi:10.3969/j.issn.0255-8297.2012.02.004

Journal of Applied Sciences ›› 2012, Vol. 30 ›› Issue (2): 128-134.doi: 10.3969/j.issn.0255-8297.2012.02.004

• Communication Engineering • Previous Articles Next Articles

Cyclostationarity Analysis of ZPOFDM Signals and Its Application to Classification of Multicarrier Modulation Signals

CUI Wei-liang, JIANG Hua, LI Jian-qiang

Institute of Information Engineering, PLA Information Engineering University; Zhengzhou 450002, China

Received:2010-12-26 Revised:2011-05-19 Online:2012-03-26 Published:2012-03-30

Abstract

Abstract:

An improved OFDM signal recognition algorithm is proposed to distinguish the zero-padding OFDM (ZPOFDM) signal from multicarrier signals. Based on the second-order cyclic cumulant of ZPOFDM and other signals and combined with a cyclostationary test, the algorithm can classify signals such as ZPOFDM, cyclic-prefix OFDM (CPOFDM), and single carrier signals in fading channel. The theoretical analysis and simulations confirm the effectiveness of discriminating multicarrier signals in frequency selective channels without synchronization and parameters estimation.

Key words: modulation classification, ZPOFDM (zero-padding OFDM), fading channel, cyclostationarity analysis, cyclostationary test

CLC Number:

TN911.7

CUI Wei-liang, JIANG Hua, LI Jian-qiang. Cyclostationarity Analysis of ZPOFDM Signals and Its Application to Classification of Multicarrier Modulation Signals[J]. Journal of Applied Sciences, 2012, 30(2): 128-134.

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Cyclostationarity Analysis of ZPOFDM Signals and Its Application to Classification of Multicarrier Modulation Signals

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