Comparison between different adaptive pre-equalization approaches for wireless LAN

Comparison between different adaptive pre-equalization approaches for wireless LAN

The IEEE 802.11a wireless LAN standard defines a high system performance and therefore requires a certain signal accuracy for the OFDM transmitter output. Taking the potential analog low pass, medium IF and RF filter imperfections into account, it is necessary to pre-equalize the signal stream digit...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Coersmeier, E., Zielinski, E.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Approximation algorithms
Digital filters
Equations
Inverse problems
Least squares approximation
OFDM
System identification
System performance
Transmitters
Wireless LAN
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Beschreibung
Zusammenfassung:The IEEE 802.11a wireless LAN standard defines a high system performance and therefore requires a certain signal accuracy for the OFDM transmitter output. Taking the potential analog low pass, medium IF and RF filter imperfections into account, it is necessary to pre-equalize the signal stream digitally before transmitting. The paper concentrates on the description and comparison between different mathematical approaches for pre-equalization in an OFDM transmitter front-end architecture. For the favorite algorithm, the corresponding simulation results are presented.
DOI:10.1109/PIMRC.2002.1045205