Complex Blind Interference Suppression for CDMA System

Abstract

Abstrac. To solve the problem that traditional LMS predictive technique is sensitive to complex white Gaussian noise and traditional blind LMS code-aided technique can't reject sinusoidal tone interference in code division multiple access (CDMA) system, a new blind LMS predictive code-aided technique is proposed. The new arithmetic has the ability to suppress complex white Gaussian noise and sinusoidal tone interference at the same time, and is deduced through complex field in this paper. By comparing with LMS predictive and blind LMS code-aided techniques, the advantage of this technique is proved through simulations.