Synchronization acquisition threshold based on peak-to-average ratio of correlation energy for UWB communications

Author

Li, Chen ; Pei, Yukui ; Ge, Ning

Author_Institution

Dept. of Electron. Eng., Tsinghua Univ., Beijing, China

fYear

2011

fDate

9-11 Nov. 2011

Firstpage

1

Lastpage

4

Abstract

Suffered from low signal-to-noise ratio (SNR) and dense multipath, synchronization acquisition for pseudonoise (PN) sequences is critical in UWB communication systems. Conventional acquisition method adopts fixed-threshold, which always results in high false alarm probability. In this paper, an threshold scheme based on peak-to-average ratio of correlation energy is proposed, and the probability of false alarm and detection is also analyzed. Simulation results show that, the false alarm probability can be reduced an order of magnitude at SNR less than -lOdB, while the detection probability coincides with the conventional when using PN sequences of length 127 in the CM1 and CM3 channel.

Keywords

correlation methods; multipath channels; ultra wideband communication; CM1 channel; CM3 channel; UWB communication systems; correlation energy; dense multipath; detection probability; fixed-threshold; high false alarm probability; peak-to-average ratio; pseudonoise sequences; synchronization acquisition threshold; Correlation; Peak to average power ratio; Signal to noise ratio; Synchronization; Ultra wideband communication; Vehicular and wireless technologies; White noise; UWB; acquisition threshold; peak-to-average ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Signal Processing (WCSP), 2011 International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4577-1009-4

Electronic_ISBN

978-1-4577-1008-7

Type

conf

DOI

10.1109/WCSP.2011.6096909

Filename

6096909