DocumentCode :
456588
Title :
Two-Dimensional Channel Estimation Based on Sliding Window for Digital Amplitude Modulation Broadcasting System
Author :
Wang, Jikang ; Zhou, Heqin
Author_Institution :
Univ. of Sci. & Technol. of China, Anhui
Volume :
1
fYear :
2006
fDate :
Aug. 30 2006-Sept. 1 2006
Firstpage :
167
Lastpage :
170
Abstract :
A novel two-dimensional channel estimation method based on sliding window is proposed for OFDM-based digital broadcasting system. The method first estimates the channel transfer function at the same subcarrier with an interpolator in time direction, and then processes the received pilots in both multipath spread domain and Doppler spread domain. In this way, it significantly reduces the inter-carrier interference (ICI) due to time-variant shortwave channel and additive white Gaussian noise (AWGN). Moreover, with the sliding window and adjustable sliding step, it can effectively handle the case of different path number as well as different path delays, which demonstrates our method´s robust feature. Simulation demonstrates that the proposed method performs well at typical mid-wave and short-wave broadcasting channels
Keywords :
AWGN channels; OFDM modulation; amplitude modulation; broadcast channels; channel estimation; digital audio broadcasting; interference suppression; multipath channels; time-varying channels; AWGN; Doppler spread domain; OFDM; additive white Gaussian noise; channel transfer function; digital amplitude modulation broadcasting system; inter-carrier interference; interpolator; multipath spread domain; sliding window; time-variant shortwave channel; two-dimensional channel estimation; AWGN; Additive white noise; Amplitude modulation; Broadcast technology; Channel estimation; Digital audio broadcasting; Digital communication; Interference; OFDM; Radio broadcasting;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Innovative Computing, Information and Control, 2006. ICICIC '06. First International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7695-2616-0
Type :
conf
DOI :
10.1109/ICICIC.2006.179
Filename :
1691767
Link To Document :
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