A novel approach for improving carrier frequency offset tracking performance of frequency domain channel equalizer employed in OFDM systems

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Tarih

2017

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Institute of Electrical and Electronics Engineers Inc.

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

A new approach based on discrete wavelet transform (DWT) and Walsh Hadamard transform (WHT) for improving carrier frequency offset (CFO) tracking performance of the multi carrier communication systems has been proposed in this paper. The proposed DWT-WHT technique has been applied to frequency domain channel equalizer (FDE) employed in orthogonal frequency division multiplexing (OFDM) systems. Computer simulations have been performed to verify the performance of the proposed method in stationary and nonstationary frequency selective Rayleigh fading channels. The obtained simulation results using HIPERLAN/2 (IEEE 802.11a) physical layer specifications have demonstrated that the proposed DWT-WHT-OFDM method is outperforming the CFO tracking performances of conventional OFDM, WHT-OFDM and DWT-OFDM techniques, and is removing the error floor. © 2017 IEEE.

Açıklama

40th International Conference on Telecommunications and Signal Processing -- TSP 2017 -- 5 July 2017 through 7 July 2017 -- Barcelona -- 131314

Anahtar Kelimeler

CFO tracking, DWT-OFDM, DWTWHT-OFDM, Frequency domain channel equalizer, OFDM, WHT-OFDM

Kaynak

2017 40th International Conference on Telecommunications and Signal Processing, TSP 2017

WoS Q Değeri

Scopus Q Değeri

N/A

Cilt

2017-January

Sayı

Künye