Title :
Blind estimation of subcarrier numberin in MB-OFDM ultra-wide band communications system
Author :
Liu, Yun ; Peng, Qicong ; Shao, Huaizong ; Chen, Xingfeng ; Wang, Ling
Author_Institution :
Commun. Eng. Sch., Uestc of China, Chengdu, China
Abstract :
In this paper, a new approach of blind estimation of subcarrier number based on multiple signal classification (MUSIC) algorithm is proposed for MB-OFDM ultra-wide band (UWB) communications system. The proposed eigenvalue-construct method only using signal autocorrelation of orthogonal frequency-division multiplexing (OFDM) symbols estimates the number of subcarriers. The computer simulations show that the proposed approach has a good performance whether it is used in AWGN channel or frequency selective fading channel.
Keywords :
OFDM modulation; eigenvalues and eigenfunctions; signal classification; ultra wideband communication; MB-OFDM ultra-wide band communications system; eigenvalue-construct method; mutiple signal classfication algorithm; orthogonal frequency-division multiplexing symbols; signal autocorrelation; subcarrier number blind estimation; AWGN; Computer simulation; Demodulation; Discrete Fourier transforms; Frequency estimation; Multiple signal classification; OFDM; Physical layer; Time frequency analysis; Transmitters; MB-OFDM; MUSIC; Time-Frequency Code(TFC); Ultra-wide Band (UWB);
Conference_Titel :
Network Infrastructure and Digital Content, 2009. IC-NIDC 2009. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4898-2
Electronic_ISBN :
978-1-4244-4900-6
DOI :
10.1109/ICNIDC.2009.5360859
