Title :
Adaptive bit loading for wireless OFDM systems
Author :
Barreto, André Noll ; Furrer, Simeon
Author_Institution :
IBM Zurich Res. Lab., Ruschlikon, Switzerland
Abstract :
We investigate the use of adaptive bit loading in existing OFDM-based W-LAN standards. The performance gain is assessed through simulation and the use of higher-rate codes is considered to improve the performance. Some practical aspects, such as peak-to-average power ratio, channel estimation, signalling and spectral flatness are also addressed
Keywords :
OFDM modulation; adaptive systems; codes; digital simulation; parameter estimation; telecommunication signalling; telecommunication standards; wireless LAN; W-LAN standards; adaptive bit loading; channel estimation; higher-rate codes; peak-to-average power ratio; performance; signalling; simulation; spectral flatness; wireless OFDM systems; wireless local area networks; Binary phase shift keying; Channel estimation; Error analysis; Intersymbol interference; Modulation coding; OFDM; Quadrature phase shift keying; Signal to noise ratio; Transmitters; Wireless LAN;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7244-1
DOI :
10.1109/PIMRC.2001.965326
