Title :
A simple and effective SNR estimation algorithm for OFDM in Rayleigh Fading Channels
Author :
Li, Jiangang ; Tang, Wanbin ; Li, Shaoqian ; Wei, Bo
Author_Institution :
Nat. Key Lab. of Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Adaptive modulation and code (AMC) in Orthogonal Frequency Division Multiplexing (OFDM) is a promising approach to achieve higher data rates with sufficient performance. However a measure of channel state is desired in order to decide upon transition rates and modulation mode. SNR is such a sufficient measure. In this work, a channel estimator based on transform domain algorithm (TFD) is presented firstly; then a novel SNR estimation algorithm for OFDM in Rayleigh fading channels is proposed, which is proved simple and effective by theoretical analysis and computer simulation.
Keywords :
OFDM modulation; Rayleigh channels; adaptive codes; channel estimation; OFDM; Rayleigh fading channel; SNR estimation algorithm; adaptive code; adaptive modulation; channel estimator; orthogonal frequency division multiplexing; transform domain algorithm; AWGN channels; Algorithm design and analysis; Bit rate; Computer simulation; Fading; Frequency estimation; Intersymbol interference; Laboratories; Modulation coding; OFDM modulation; MMSE; OFDM; SNR Estimation; transform domain;
Conference_Titel :
Information, Communications and Signal Processing, 2009. ICICS 2009. 7th International Conference on
Conference_Location :
Macau
Print_ISBN :
978-1-4244-4656-8
Electronic_ISBN :
978-1-4244-4657-5
DOI :
10.1109/ICICS.2009.5397695
