Title :
Blind estimation of amplitudes, phases, time delays, and frequency shifts in multiuser communication systems
Author :
Napolitano, Antonio ; Tanda, Mario
Author_Institution :
Dipt. di Ingegneria Elettronica, Naples Univ., Italy
Abstract :
This paper considers the problem of estimating amplitude, phase, time delay, and frequency shift of each user in a multiple-access communication system. An algorithm based on the cyclostationarity features of the received signal is proposed. It provides estimates of the unknown parameters that are intrinsically immune to the effects of noise and interference. The algorithm requires no preamble and is not based on the usual assumption of white noise
Keywords :
amplitude estimation; code division multiple access; delay estimation; frequency estimation; multi-access systems; multiuser channels; phase estimation; spread spectrum communication; DS-CDMA; amplitude estimation; blind estimation; cyclostationarity features; frequency shift estimation; multiple-access communication system; multiuser communication systems; phase estimation; time delay estimation; unknown parameters estimation; Amplitude estimation; Delay effects; Delay estimation; Frequency estimation; Interference; Multiaccess communication; Parameter estimation; Phase estimation; Statistics; White noise;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851244
