Impulse radio pulse shaping for ultra-wide bandwidth (UWB) systems

Author

Wu, Yunnan ; Molisch, Andreas F. ; Kung, Sun-Yuan ; Zhang, Jinyun

Author_Institution

Dept. of Electr. Eng., Princeton Univ., NJ, USA

Volume

1

fYear

2003

fDate

7-10 Sept. 2003

Firstpage

877

Abstract

In this paper, we investigate the design of pulse shaping UK filters for impulse radio ultrawideband (UWB) communications systems. The goal of the shaping is to meet an arbitrary spectrum mask, e.g., the mask mandated by the FCC for UWB emissions. Compared with classical FIR filter designs, the current problem introduces three new challenges: (1) it is minimax with quadratic constraints, (2) a single-sided distortion function is used, (3) delay positions are treated as tuning parameters. We first approach this problem by constructing a least-squares approximation to the minimax problem where the optimization over delays can be easily solved. With the LS solution serving as an initialization, nonlinear optimization techniques are employed to fine tune the solutions.

Keywords

FIR filters; broadband networks; least squares approximations; minimax techniques; pulse shaping; radio networks; FIR filter; Federal Communication Commission; arbitrary spectrum mask; impulse radio ultrawideband communications systems; least-squares approximation; nonlinear optimization techniques; pulse shaping UK filters; quadratic constraints; single-sided distortion function; tuning parameters; Bandwidth; Delay; FCC; Finite impulse response filter; Frequency; Interference; Least squares approximation; Minimax techniques; Pulse modulation; Pulse shaping methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on

Print_ISBN

0-7803-7822-9

Type

conf

DOI

10.1109/PIMRC.2003.1264399

Filename

1264399