Subspace method for blind channel identification in OFDM systems

Xiaodong Cai, Ali N. Akansu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

97 Scopus citations

Abstract

It has been shown that cyclostationarity in the received signal allows the receiver blindly identify the channel impulse response using only second-order statistics. In orthogonal frequency-division multiplexing (OFDM) systems, cyclostationarity is embedded at the transmitter due to cyclic prefix. In this paper, a subspace approach based on second-order statistics is proposed for blind channel identification in OFDM systems. We derive a sufficient condition that guarantees all the channels to be identifiable no matter what their zero locations are. Computer simulations demonstrate the superior performance of the proposed algorithm over methods reported earlier in the literature.

Original languageEnglish
Title of host publicationIEEE International Conference on Communications
Pages929-933
Number of pages5
Volume2
StatePublished - Dec 3 2000
Externally publishedYes
Event2000 IEEE International Conference on Communications - New Orleans, LA, USA
Duration: Jun 18 2000Jun 22 2000

Other

Other2000 IEEE International Conference on Communications
CityNew Orleans, LA, USA
Period6/18/006/22/00

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Cai, X., & Akansu, A. N. (2000). Subspace method for blind channel identification in OFDM systems. In IEEE International Conference on Communications (Vol. 2, pp. 929-933)