Title :
On multi-carrier code division multiple access (MC-CDMA) modem design
Author :
Fettweis, Gerhard ; Bahai, Ahmad Shaikh ; Anvari, Kiomars
Author_Institution :
Teknekron Commun. Syst. Inc., Berkeley, CA, USA
Abstract :
Standard spread-spectrum techniques encounter a severe performance loss under channels with large Doppler spread. It is shown that the novel spread-spectrum technique, called multi-carrier (MC) CDMA, is dual to direct-sequence CDMA. This enables to derive that MC-CDMA is a signalling technique which allows optimum detection under severe Doppler spread. The receiver for this is a RAKE receiver in the frequency domain
Keywords :
Doppler effect; code division multiple access; mobile radio; modems; radio receivers; spread spectrum communication; MC-CDMA; RAKE receiver; direct-sequence CDMA; frequency domain; large Doppler spread channels; modem design; multi-carrier code division multiple access; optimum detection; performance loss; signalling technique; spreading code; standard spread-spectrum techniques; Delay; Fading; Modems; Multiaccess communication; Multicarrier code division multiple access; Multipath channels; RAKE receivers; Robustness; Scattering; Spread spectrum communication;
Conference_Titel :
Vehicular Technology Conference, 1994 IEEE 44th
Conference_Location :
Stockholm
Print_ISBN :
0-7803-1927-3
DOI :
10.1109/VETEC.1994.345380
