naa a22 4500 510792863 CHVBK 20180411083326.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11277-012-0850-9 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0850-9 Range Estimation in a Time Varying Multipath Channel [Elektronische Daten] [Donglin Wang, Michel Fattouche] In this paper, range estimation in a time varying multipath channel is investigated, on the basis of which a multicarrier (MC) signal is compared with its pseudo-random (PN) counterpart in terms of the Cramer-Rao lower bound (CRLB) and the maximum likelihood estimator (MLE). The CRLB for range estimation in a time varying multipath channel is derived for three cases: (1) known channel state information (CSI); (2) unknown CSI; and (3) a special case of unknown CSI where the channel is modeled via Doppler shift. Furthermore, the MLE is developed for range estimation for each one of the above three cases and is investigated for a multipath Doppler channel with respect to the separability of its multipath components. Besides, the condition for a multipath Doppler channel to be separable is explored for a PN signal as well as for a MC signal. Simulation results show that range estimation with a MC signal outperforms its PN counterpart in a time varying channel, similar as that in a time invariant channel. Springer Science+Business Media, LLC., 2012 Central angle range estimation nationallicence Time varying channel nationallicence Cramer-Rao lower bound (CRLB) nationallicence Maximum likelihood estimator (MLE) nationallicence Multipath Doppler nationallicence Pseudo-random noise (PN) nationallicence Multicarrier (MC) nationallicence Wang Donglin Department of Electrical and Computer Engineering, University of Calgary, T2N 1N4, Calgary, AB, Canada aut Fattouche Michel Department of Electrical and Computer Engineering, University of Calgary, T2N 1N4, Calgary, AB, Canada aut Wireless Personal Communications Springer US; http://www.springer-ny.com 71/2(2013-07-01), 887-908 0929-6212 71:2<887 2013 71 11277 https://doi.org/10.1007/s11277-012-0850-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0850-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang Donglin Department of Electrical and Computer Engineering, University of Calgary, T2N 1N4, Calgary, AB, Canada aut NATIONALLICENCE 700 1- Fattouche Michel Department of Electrical and Computer Engineering, University of Calgary, T2N 1N4, Calgary, AB, Canada aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 71/2(2013-07-01), 887-908 0929-6212 71:2<887 2013 71 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer