Title :
A low-complexity time-domain channel estimator for ZP-OFDM systems
Author :
Jiong Shi ; Liping Jin ; Zhaoxi Fang ; Jungan Chen
Author_Institution :
Sch. of Electron. & Inf. Eng., Zhejiang Wanli Univ., Ningbo, China
Abstract :
This paper addresses a low-complexity channel estimation algorithm for zero-padded orthogonal frequency-division multiplexing (ZP-OFDM) systems. With ideal autocorrelation properties of Perfect Punctured Binary Sequence Pair (PPBSP), a time-domain least square (LS) channel estimator is proposed. According to the analysis of mean square error (MSE) and algorithm complexity, the proposed method achieves better performance compared with traditional method. Simulation results confirm our theoretical analysis and demonstrate that the proposed scheme is effective.
Keywords :
OFDM modulation; channel estimation; computational complexity; least squares approximations; mean square error methods; LS channel estimator; MSE analysis; PPBSP; ZP-OFDM systems; ideal autocorrelation properties; low complexity time domain channel estimator; mean square error analysis; perfect punctured binary sequence pair; time domain least square channel estimator; zero padded orthogonal frequency division multiplexing; OFDM; PPBSP; autocorrelation; channel estimation;
Conference_Titel :
Wireless Communications & Signal Processing (WCSP), 2012 International Conference on
Conference_Location :
Huangshan
Print_ISBN :
978-1-4673-5830-9
Electronic_ISBN :
978-1-4673-5829-3
DOI :
10.1109/WCSP.2012.6542797
