Yun Liu, Q. Peng, H. Shao, Xingfeng Chen, Ling Wang
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Blind estimation of subcarrier numberin in MB-OFDM ultra-wide band communications system
In this paper, a new approach of blind estimation of subcarrier number based on mutiple signal classfication (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.
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