Title :
A Signal Acquisition Scheme for Noncoherent UWB System in Multipath Channel
Author :
Kim, Jaewoon ; Yang, Suckchel ; Shin, Yoan
Author_Institution :
Soongsil Univ., Seoul
Abstract :
We propose to apply the two-step search scheme with linear search based second step (TSS-LS) which improves the conventional two-step search scheme with bit reversal search based second step (TSS-BS), for rapid and reliable acquisition of noncoherent ultra wide band (UWB) signals in multipath channels. The proposed noncoherent TSS-LS employing simple energy window banks utilizes two different thresholds and search windows to achieve fast signal acquisition, and adopts the linear search algorithm for the second step to obtain reliable bit error rate (BER) performance. Simulation results in IEEE 802.15.4a UWB channel model reveal that the proposed TSS-LS provides quite good BER performances comparable to the ideal noncoherent UWB system with the perfect synchronization, as well as rapid signal acquisition
Keywords :
error statistics; multipath channels; personal area networks; search problems; signal detection; synchronisation; ultra wideband communication; wireless channels; BER; IEEE 802.15.4a; TSS-LS; UWB; bit error rate performance; energy window bank; linear search based second step; multipath channels; noncoherent ultra wide band signal; signal acquisition; synchronization; two-step search scheme; AWGN; Acceleration; Bit error rate; Degradation; Delay effects; Explosives; Multipath channels; Signal resolution; Ultra wideband technology; Wireless communication; TSS-BS; TSS-LS; UWB; noncoherent receiver; signal acquisition; two-step search;
Conference_Titel :
TENCON 2006. 2006 IEEE Region 10 Conference
Conference_Location :
Hong Kong
Print_ISBN :
1-4244-0548-3
Electronic_ISBN :
1-4244-0549-1
DOI :
10.1109/TENCON.2006.343855
