One-shot near-far resistant CDMA detection in multipath fading channels-an O^3 BPSK based system

Zheng, F.-C. and Barton, S.K. (1995) One-shot near-far resistant CDMA detection in multipath fading channels-an O^3 BPSK based system. In: 1995 IEEE 45th Vehicular Technology Conference. IEEE Press, pp. 489-493. ISBN 078032742X doi: 10.1109/VETEC.1995.504915

Abstract/Summary

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.