Title :
Frequency-offset estimation for HIPERLAN
Author :
Tellambura, C. ; Johnson, I.R. ; Guo, Y.J. ; Barton, S.K.
Author_Institution :
Sch. of Comput. Sci. & Software Eng., Monash Univ., Clayton, Vic., Australia
fDate :
8/1/1999 12:00:00 AM
Abstract :
Frequency-offset correction is considered for a HIPERLAN (HIgh-PErformance Radio LAN) system over the indoor radio channel. Since the multipath channel response is not known a priori, a viable frequency-offset estimator should not depend on such knowledge. Such an estimator, using a single sample per symbol, is derived for HIPERLAN. The estimator is shown to approach the Cramer-Rao bound for frequency-offset estimation over a multipath channel. A HIPERLAN system simulation example shows that the performance with an offset of 150 kHz is within 0.5 dB of that of a system with zero frequency offset
Keywords :
frequency estimation; indoor radio; multipath channels; wireless LAN; 150 kHz; Cramer-Rao bound; HIPERLAN; frequency-offset correction; frequency-offset estimation; frequency-offset estimator; high performance radio LAN; indoor radio channel; multipath channel; multipath channel response; system simulation; zero frequency offset; Delay; Frequency estimation; Helium; Indoor radio communication; Intersymbol interference; Local oscillators; Maximum likelihood estimation; Multipath channels; Nonlinear filters; Wireless LAN;
Journal_Title :
Communications, IEEE Transactions on
