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Doppler Frequency Estimation Robust to Synchronization Error and Noise in FMT Systems  

Yeom, Jae-Heung (AP시스템(주) 위성단말기사업본부)
Jo, Yeong-Hun (AP시스템(주) 위성단말기사업본부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.35, no.6C, 2010 , pp. 572-579 More about this Journal
Abstract
Filtered multi-tone (FMT) is a form of multicarrier modulation utilizing frequency-domain equalization efficient in multi-path fading channels. Doppler frequency information can be employed for channel estimation and link adaptation to improve the performance. However, most previous studies have concentrated on the orthogonal frequency division multiplexing (OFDM) instead of FMT. Moreover, they have not considered the synchronization error that can commonly occur in practical systems. In this paper, we propose Doppler frequency estimation scheme that is effective in FMT systems with residual synchronization error and high noise levels.
Keywords
FMT; Doppler Frequency; Synchronization Error; TEDS;
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