Distortion Analysis of Ultra-Wideband OFDM Receiver Front-Ends

Author

Ranjan, Mahim ; Larson, Lawrence E.

Author_Institution

Qualcomm Inc, San Diego, CA

Volume

54

Issue

12

fYear

2006

Firstpage

4422

Lastpage

4431

Abstract

This paper presents a comprehensive analysis of the effect of nonlinearities in ultra-wideband orthogonal frequency-division multiplexing receivers. The statistical properties of a quadrature phase-shift keying baseband signal are utilized to derive closed-form expressions for the power spectral density of cross-modulation, intermodulation, and harmonic distortion products of modulated signals, arising from second- and third-order nonlinearities in the receiver. Both narrowband and wideband jammers are considered. The derived expressions are then used to predict the effect of these nonidealities on the link budget of the system

Keywords

OFDM modulation; harmonic distortion; intermodulation distortion; quadrature phase shift keying; radio receivers; statistical analysis; ultra wideband communication; OFDM receiver front-ends; closed-form expressions; cross-modulation distortion; distortion analysis; harmonic distortion; intermodulation distortion; link budget; narrowband jammers; nonlinearities effect; power spectral density; quadrature phase-shift keying signal; spectral analysis; statistical properties; ultra-wideband receiver; wideband jammers; Baseband; Closed-form solution; Frequency division multiplexing; Harmonic distortion; Jamming; Narrowband; OFDM modulation; Phase modulation; Phase shift keying; Ultra wideband technology; Cross-modulation; distortion; nonlinear circuit; orthogonal frequency-division multiplexing (OFDM); spectral analysis; statistics; ultra-wideband (UWB);

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2006.882870

Filename

4020481