Effect of CDMA Schemes on UWB Time-of-Arrival Estimation

Author

Lee, Joon-Yong ; Chung, Ji-Hoon ; Kang, A-Young

Author_Institution

Member, IEEE, Assistant Professor, School of Computer Science and Electrical Engineering, Handong University, Pohang, 791-708, Korea. e-mail: joonlee@handong.edu

fYear

2007

fDate

29-31 Oct. 2007

Firstpage

1

Lastpage

4

Abstract

The presence of multiuser interference (MUI) can seriously impact the accuracy of ultra-wideband (UWB) time delay estimation. This is especially true for the probability of an early false alarm error, which is strongly affected by the peak-to-average ratio (PAR) of the MUI signal. The averaging process used to achieve processing gain can affect the PAR of MUI differently in different multiple access scenarios. In this paper, we examine the effect of CDMA schemes on UWB time-of-arrival estimation performance; we do this by evaluating the PAR of MUI, both semi-analytically and experimentally, for time-hopped and direct sequence multiple access scenarios.

Keywords

Delay effects; Interference; Laboratories; Multiaccess communication; Peak to average power ratio; Probability; Random processes; Time of arrival estimation; Transmitters; Ultra wideband technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 2007. MILCOM 2007. IEEE

Conference_Location

Orlando, FL, USA

Print_ISBN

978-1-4244-1513-7

Electronic_ISBN

978-1-4244-1513-7

Type

conf

DOI

10.1109/MILCOM.2007.4454754

Filename

4454754