Blind channel estimation with periodicity for OFDM systems without cyclic prefix

Shih Hao Fang; Ju Ya Chen; Jing Shiun Lin; Ming Der Shieh

doi:10.1109/TENCON.2011.6129148

Blind channel estimation with periodicity for OFDM systems without cyclic prefix

Shih Hao Fang, Ju Ya Chen, Jing Shiun Lin, Ming Der Shieh

Department of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Generation of the signal and noise subspaces is a critical problem in subspace-based algorithms for orthogonal frequency division multiplexing (OFDM) systems. Some special characteristics, such as virtual carriers (VCs), real symbols, and/or cyclic prefix (CP), can be exploited to construct the required noise subspace in conventional subspace approaches. In this paper, a blind channel estimation algorithm with periodicity property is proposed for OFDM systems without CP. Using the time-domain periodicity, which can be obtained by inserting zeros at some positions of frequency-domain OFDM symbols, a method for constructing the noise subspace is developed based on the proposed signal model. Simulation results show that the proposed blind channel estimation method has better normalized mean-squared error (NMSE) performance than that of a conventional approach with VCs.

Original language	English
Title of host publication	TENCON 2011 - 2011 IEEE Region 10 Conference
Subtitle of host publication	Trends and Development in Converging Technology Towards 2020
Pages	470-473
Number of pages	4
DOIs	https://doi.org/10.1109/TENCON.2011.6129148
Publication status	Published - 2011 Dec 1
Event	2011 IEEE Region 10 Conference: Trends and Development in Converging Technology Towards 2020, TENCON 2011 - Bali, Indonesia Duration: 2011 Nov 21 → 2011 Nov 24

Publication series

Name	IEEE Region 10 Annual International Conference, Proceedings/TENCON

Other

Other	2011 IEEE Region 10 Conference: Trends and Development in Converging Technology Towards 2020, TENCON 2011
Country	Indonesia
City	Bali
Period	11-11-21 → 11-11-24

All Science Journal Classification (ASJC) codes

Computer Science Applications
Electrical and Electronic Engineering

Access to Document

10.1109/TENCON.2011.6129148

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Fang, S. H., Chen, J. Y., Lin, J. S., & Shieh, M. D. (2011). Blind channel estimation with periodicity for OFDM systems without cyclic prefix. In TENCON 2011 - 2011 IEEE Region 10 Conference: Trends and Development in Converging Technology Towards 2020 (pp. 470-473). [6129148] (IEEE Region 10 Annual International Conference, Proceedings/TENCON). https://doi.org/10.1109/TENCON.2011.6129148

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title = "Blind channel estimation with periodicity for OFDM systems without cyclic prefix",

abstract = "Generation of the signal and noise subspaces is a critical problem in subspace-based algorithms for orthogonal frequency division multiplexing (OFDM) systems. Some special characteristics, such as virtual carriers (VCs), real symbols, and/or cyclic prefix (CP), can be exploited to construct the required noise subspace in conventional subspace approaches. In this paper, a blind channel estimation algorithm with periodicity property is proposed for OFDM systems without CP. Using the time-domain periodicity, which can be obtained by inserting zeros at some positions of frequency-domain OFDM symbols, a method for constructing the noise subspace is developed based on the proposed signal model. Simulation results show that the proposed blind channel estimation method has better normalized mean-squared error (NMSE) performance than that of a conventional approach with VCs.",

author = "Fang, {Shih Hao} and Chen, {Ju Ya} and Lin, {Jing Shiun} and Shieh, {Ming Der}",

year = "2011",

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Fang, SH, Chen, JY, Lin, JS & Shieh, MD 2011, Blind channel estimation with periodicity for OFDM systems without cyclic prefix. in TENCON 2011 - 2011 IEEE Region 10 Conference: Trends and Development in Converging Technology Towards 2020., 6129148, IEEE Region 10 Annual International Conference, Proceedings/TENCON, pp. 470-473, 2011 IEEE Region 10 Conference: Trends and Development in Converging Technology Towards 2020, TENCON 2011, Bali, Indonesia, 11-11-21. https://doi.org/10.1109/TENCON.2011.6129148

Blind channel estimation with periodicity for OFDM systems without cyclic prefix. / Fang, Shih Hao; Chen, Ju Ya; Lin, Jing Shiun; Shieh, Ming Der.

TENCON 2011 - 2011 IEEE Region 10 Conference: Trends and Development in Converging Technology Towards 2020. 2011. p. 470-473 6129148 (IEEE Region 10 Annual International Conference, Proceedings/TENCON).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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