Title :
SNR estimation in frequency selective Rayleigh channel for HIPERLAN/2 transceiver
Author :
Athanasios, Doukas ; Grigorios, Kalivas
Author_Institution :
Dept. of Electr. & Comput. Eng., Patras Univ., Achaia
Abstract :
Orthogonal frequency division multiplexing (OFDM) systems have received much attention because of their robust performance in dispersive channels. However, channel state information, especially signal-to-noise ratio (SNR), is necessary in order to obtain improvements in receiver performance. In this work, a computationally simple SNR estimator is evaluated for a HIPERLAN/2 OFDM transceiver. The estimator operates on Rayleigh fading frequency selective channel using BPSK modulated data. We assess the accuracy of the algorithm and show that the accuracy of the estimation is associated with the number of subcarriers used for the estimation
Keywords :
OFDM modulation; Rayleigh channels; phase shift keying; transceivers; BPSK modulation; HIPERLAN/2 transceiver; OFDM system; SNR; channel state information; frequency selective Rayleigh channel; orthogonal frequency division multiplexing system; signal-to-noise ratio estimation; Binary phase shift keying; Bit rate; Channel state information; Dispersion; Frequency estimation; OFDM modulation; Rayleigh channels; Robustness; Signal processing algorithms; Transceivers;
Conference_Titel :
Signal Processing and Information Technology, 2005. Proceedings of the Fifth IEEE International Symposium on
Conference_Location :
Athens
Print_ISBN :
0-7803-9313-9
DOI :
10.1109/ISSPIT.2005.1577137
