First International Symposium on Control, Communications and Signal Processing, 2004.
In this paper, we propose a blind multiuser detection scheme in a direct sequence CDMA downlink scenario by means of a chiplevel equaliser, which can be updated even if not all possible users are active, i.e. the system is partially loaded. The active synchronous users are separated by re-establishing orthogonality of their spreading sequences in a common chip-level equaliser. The adaptation algorithm is mainly based on a constant modulus (CM) criterion applied to the active users. The inactivedoi:10.1109/isccsp.2004.1296567 fatcat:ecw2vodco5fpxojhdtd67tkgp4