Transmitter impairments in OFDM-based wireless LAN

Author

Pauli, Mathias ; Wachsmann, Udo ; Sundelin, Magnus ; Schramm, Peter

Author_Institution

Ericsson Eurolab Deutschland GmbH, Nurnberg, Germany

Volume

1

fYear

2001

fDate

2001

Firstpage

692

Abstract

The modulation scheme orthogonal frequency division multiplexing (OFDM) is well-known to be robust in highly dispersive fading environments. It was chosen as modulation scheme for the wireless local area networks (WLAN) HIPERLAN/2 (High Performance Radio Local Area Network type 2), IEEE 802.11a and HiSWAN (High Speed Wireless Access Network). Indoor and large open space environments are typical application scenarios for these WLAN. In this paper system aspects related to nonlinear distortions are investigated. Thereby, the focus is on the nonlinear distortions caused by the power amplifier, which have the major impact on the mutual relations of the system´s adjacent channel suppression, spectrum mask, and modulation accuracy. For the investigations the HIPERLAN/2 was chosen as an example

Keywords

IEEE standards; OFDM modulation; adjacent channel interference; cochannel interference; dispersive channels; fading channels; indoor radio; interference suppression; nonlinear distortion; power amplifiers; radio transmitters; radiofrequency amplifiers; telecommunication standards; wireless LAN; HIPERLAN/2; HiSWAN; High Performance Radio Local Area Network type 2; High Speed Wireless Access Network; IEEE 802.11a; OFDM-based wireless LAN; WLAN; adjacent channel interference; adjacent channel suppression; cochannel interference; dispersive fading environments; indoor environments; large open space environments; modulation accuracy; nonlinear distortions; orthogonal frequency division multiplexing; power amplifier; radio network performance; simulation model; spectrum mask; transmitter impairments; wireless local area networks; Dispersion; Fading; Frequency modulation; Local area networks; Nonlinear distortion; OFDM modulation; Radio transmitters; Robustness; Wireless LAN; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd

Conference_Location

Rhodes

ISSN

1090-3038

Print_ISBN

0-7803-6728-6

Type

conf

DOI

10.1109/VETECS.2001.944932

Filename

944932