Title :
Fast converging semi-blind SNR estimation for wireless MIMO-OFDM systems
Author :
Babu, M. Sushanth ; Rao, K. Kishan
Author_Institution :
Dept. of ECE, Jawaharlal Nehru Technol. Univ., Hyderabad, India
Abstract :
Orthogonal frequency division multiplexing is a multicarrier modulation scheme proving robustness against Inter-symbol interference and offers high data rates. We investigate MIMO-OFDM system and propose novel SNR estimation algorithms by utilizing the information about the channel quality. Semi blind training symbols are adapted for analyzing parameters of adaptive transmission and periodic structure of the preamble is utilized for computationally efficient of SNR estimation. Theoretical analysis and simulation results illustrate the performance of proposed estimators with Normalized Mean Square Error.
Keywords :
MIMO communication; OFDM modulation; channel estimation; intersymbol interference; mean square error methods; wireless channels; fast converging semi-blind SNR estimation; intersymbol interference; multicarrier modulation scheme; normalized mean square error; orthogonal frequency division multiplexing; semi blind training symbols; wireless MIMO-OFDM systems; Channel estimation; Estimation; Fading; OFDM; Receiving antennas; Signal to noise ratio; Transmitting antennas; Inter-symbol Interference; Minimum Mean square Error; Multiple input and Multiple output; Orthogonal Frequency Division Multiplexing; Semi-Blind Channel Estimation; Signal to Noise Ratio;
Conference_Titel :
Signal Processing, Communications and Computing (ICSPCC), 2011 IEEE International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4577-0893-0
DOI :
10.1109/ICSPCC.2011.6061556
