Title :
One-shot near-far resistant CDMA detection in multipath fading channels-an O3BPSK based system
Author :
Zheng, Fu-Chun ; Barton, Stephen K.
Author_Institution :
Dept. of Electr. & Electron. Eng., Bradford Univ., UK
Abstract :
This paper applies O3BPSK (orthogonal on-off PSK) signaling scheme to multipath fading CDMA channels, for the purpose of near-far resistant detection in the reverse link. Based on the maximum multipath spreading delay, a minimum duration of “off” is suggested, with which the temporally adjacent bits (TABs) from different users at the receiver are decoupled. As a result, a Rake-type one-shot linear decorrelating detector (LDD) is obtained. Since no knowledge of echo amplitudes is needed, a blind detection can be realised
Keywords :
amplitude shift keying; code division multiple access; fading; multipath channels; phase shift keying; radio receivers; signal detection; CDMA; O3BPSK signalling; Rake-type one-shot linear decorrelating detector; blind detection; maximum multipath spreading delay; multipath fading channels; one-shot near-far resistant detection; orthogonal on-off PSK; reverse link; AWGN; Binary phase shift keying; Decorrelation; Delay; Detectors; Fading; Multiaccess communication; Phase shift keying; RAKE receivers; Resistance;
Conference_Titel :
Vehicular Technology Conference, 1995 IEEE 45th
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-2742-X
DOI :
10.1109/VETEC.1995.504915
