DocumentCode :
1173879
Title :
Signal Detection for EST Based Modulation in Doubly-Selective Channels
Author :
Jaeho Lee ; Taewon Hwang ; Ye Li
Author_Institution :
Sch. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Volume :
57
Issue :
8
fYear :
2009
Firstpage :
3287
Lastpage :
3291
Abstract :
The energy spreading transform (EST) based modulation with iterative signal detection has been shown to perform very close to the matched filter bound (MFB) for time-invariant or slow time-varying channels with signal-to-noise ratio over a threshold. However, for fast time-varying channels, the original equalization alone is not adequate. In this correspondence, we extend the EST-based approach to doubly-selective channels, that is, time-varying and frequency-selective channels. Our simulation results show that the extended approach has significant performance for doubly-selective channels.
Keywords :
OFDM modulation; iterative methods; matched filters; signal detection; transforms; doubly-selective channels; energy spreading transform based modulation; frequency-selective channels; matched filter bound; signal detection; slow time-varying channels; time-invariant channels; Fourier transforms; Frequency domain analysis; Intersymbol interference; Matched filters; OFDM modulation; Signal detection; Signal to noise ratio; Time-varying channels; Transmitters; Wideband; Channel equalization; doubly-selective channels; energy-spreading transform; iterative equalization;
fLanguage :
English
Journal_Title :
Signal Processing, IEEE Transactions on
Publisher :
ieee
ISSN :
1053-587X
Type :
jour
DOI :
10.1109/TSP.2009.2016236
Filename :
4787099
Link To Document :
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