Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Extended Kalman filter channel estimation for line-of-sight detection in WCDMA mobile positioning
EURASIP Journal on Applied Signal Processing
IEEE Transactions on Wireless Communications
Universal composite hypothesis testing: a competitive minimax approach
IEEE Transactions on Information Theory
Exploiting location awareness toward improved wireless system design in cognitive radio
IEEE Communications Magazine
Real-time measurements for adaptive and cognitive radio systems
EURASIP Journal on Wireless Communications and Networking
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A method is proposed to identify the existence of line-of-sight (LOS) for time-varying, frequency selective radio channels. The proposed method considers the second-order statistical characteristics of underlying process in the channel taps. Identification is established by comparing the autocorrelation coefficients of the first tap with those of any other tap when the other tap reaches its coherence time. Numerical results and related discussions are presented considering several practical scenarios.