Effect of imperfect channel information in OFDM-based WLAN

The performance degradation of an orthogonal frequency division multiplexing (OFDM) systems due to imperfect channel information in Rayleigh fading channels is analysed. The channel information is corrupted by the channel estimation error and outdated due to time variation of the channel. The effect...

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Veröffentlicht in:	Electronics letters 2002-08, Vol.38 (16), p.1-1
Hauptverfasser:	Cheon, Hyunsoo, Hong, Daesik
Format:	Artikel
Sprache:	eng
Schlagworte:	Channels Errors Fading Local area networks Orthogonal Frequency Division Multiplexing Performance degradation Signal to noise ratio Wireless networks
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	The performance degradation of an orthogonal frequency division multiplexing (OFDM) systems due to imperfect channel information in Rayleigh fading channels is analysed. The channel information is corrupted by the channel estimation error and outdated due to time variation of the channel. The effective signal-to-noise ratio and the Chernoff bounds are provided for an OFDM-based wireless LAN system.
ISSN:	0013-5194 1350-911X