Title :
Channel estimation for coherent multi-carrier CDMA systems over fast fading channels
Author_Institution :
Dept. of Electron. Eng., Konkuk Univ., Seoul, South Korea
Abstract :
For multi-carrier code division multiple access (MC-CDMA) systems, the pilot carrier-aided technique has been considered for coherent detection. An optimal number of pilot carriers to minimize the bit error rate (BER) has been found under a fast fading channel environment. It is also shown that the result can be applied to direct sequence (DS)-CDMA systems with the pilot chip-aided technique
Keywords :
code division multiple access; error statistics; fading channels; indoor radio; land mobile radio; multiuser channels; parameter estimation; signal detection; spread spectrum communication; BER minimization; DS-CDMA systems; MC-CDMA systems; bit error rate; channel estimation; coherent detection; coherent multi-carrier CDMA systems; direct sequence CDMA systems; fast fading channel; fast fading channels; mobile communications systems; multi-carrier code division multiple access; pilot carrier-aided technique; pilot chip-aided technique; wireless indoor communications systems; Background noise; Bit error rate; Channel estimation; Fading; Filters; Multiaccess communication; Multicarrier code division multiple access; Parameter estimation; Pulse shaping methods; Transmitters;
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.2000.851487
