Study on fuzzy parallel interference cancellation multiuser detector algorithm

Abstract

Fuzzy logic which processes logical thought based on surrounding fuzzy information, aims to deal with fuzzy information by membership function and serial parallel regulation. By using the concept of membership function in fuzzy mathematics theory to equivalent the interference cancellation factor of each user as a membership function and with the Signal-to-Interference Ratio (SIR) used as a element in this universe, this paper proposes fuzzy parallel interference cancellation based on estimated signal-to-interference ratio (SIF-PIC).