Title :
Effect of imperfect channel information in OFDM-based WLAN
Author :
Cheon, Hyunsoo ; Hong, Daesik
Author_Institution :
Inf. & Telecommun. Lab., Yonsei Univ., Seoul, South Korea
fDate :
8/1/2002 12:00:00 AM
Abstract :
The performance degradation of 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 The channel information is corrupted by the channel estimation error and outdated due to time-variation of the channel.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
Keywords :
OFDM modulation; Rayleigh channels; multipath channels; noise; time-varying channels; wireless LAN; Chernoff bounds; OFDM-based WLAN; Rayleigh fading channels; SNR; channel estimation error; imperfect channel information; multipath; orthogonal frequency division multiplexing; performance degradation; signal model; signal-to-noise ratio; time-varying channels;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20020353
