Dual-antenna based blind hostile jamming suppression and multi-user detection scheme for ds-cdma systems with unknown hostile jamming

The performance of direct-sequence code-division multiple access (DS-CDMA) systems may be significantly degraded if the system is severely jammed. In this paper, we propose a blind hostile jamming suppression and multi-user detection (MUD) scheme for the uplink of hostile jamming dominant DS-CDMA system. Based on using dual receive antennas, this scheme exploits the unknown spatial correlation of the jamming components between two antennas to eliminate the unknown hostile jamming and then performs MUD based independent component analysis (ICA). Simulation results demonstrate that the proposed scheme perform well in hostile jamming dominant scenario.