Title :
A novel SNR estimation algorithm for MB OFDM ultra wide band communications
Author :
Barrera, Melisa ; Betancur, Leonardo ; Navarro, Andrés
Author_Institution :
Univ. de Antioquia, Medellin, Colombia
Abstract :
In this paper, we propose a novel signal to noise ratio algorithm based on the moments of the received signal. The novel algorithm has been designed for multi band orthogonal frequency division multiplexing (MB-OFDM) communication systems in ultra wide band channels. The proposed algorithm is a switched estimator that uses two equation models, one is for large SNR scale and the other for low SNR scale. The proposed model can be used for SNR estimation in adaptive modulation and channel estimation and link quality control in MB OFDM systems. This algorithm can be implemented in receivers with simple structures. The performance of the proposed SNR estimation algorithm and its comparison with other SNR estimators was achieved through simulations.
Keywords :
OFDM modulation; adaptive modulation; channel estimation; ultra wideband communication; MB-OFDM ultra wide band communication; SNR estimation; adaptive modulation; channel estimation; link quality control; multiband orthogonal frequency division multiplexing; signal to noise ratio algorithm; switched estimator; Adaptive control; Algorithm design and analysis; Channel estimation; Communication switching; Equations; OFDM modulation; Programmable control; Quality control; Signal to noise ratio; Ultra wideband communication; MB OFDM; SNR estimation; UWB;
Conference_Titel :
Communications, 2009. LATINCOM '09. IEEE Latin-American Conference on
Conference_Location :
Medellin
Print_ISBN :
978-1-4244-4387-1
Electronic_ISBN :
978-1-4244-4388-8
DOI :
10.1109/LATINCOM.2009.5304675
