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A Rapid Two-Step Acquisition Algorithm for UWB Systems in Indoor Wireless Channels  

Yang Suchkchel (숭실대학교 정보통신전자공학부)
Oh Jongok (숭실대학교 정보통신전자공학부)
Kim Jeawoon (숭실대학교 정보통신전자공학부)
Shin Yoan (숭실대학교 정보통신전자공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.8C, 2005 , pp. 742-753 More about this Journal
Abstract
In this paper, we propose a rapid and reliable signal acquisition scheme for UWB (Ultra Wide Band) systems in typical indoor wireless channels. The proposed scheme is a two-step search with different thresholds and search window applied to a single correlator, where each step utilizes the single-dwell search with the bit reversal. Simulation results in IEEE 802. I5 Task Group .3a UWB indoor wireless channel show that the proposed scheme for the LHWB signals can achieve significant reduction of the required mean acquisition time as compared to the conventional single-dwell bit reversal search and double-dwell bit reversal search with more complex structure employing two correlators for various threshold levels. In addition, it is also observed that the proposed scheme can achieve much faster and reliable signal acquisition in noisy environments.
Keywords
UWB; Signal Acquisition; Two-Step Search; Single-Dwell Search; Double-Dwell Search; Bit Reversal Search;
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Times Cited By KSCI : 2  (Citation Analysis)
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