Sequence Assignment and Performance Evaluations of Multi Code CDMA System with Gold Sequences in Quasi-Synchronous Situations

摘要

We have presented the BER performance of multi code CDMA systems with adaptively assigned proper Gold sequences based on the data rates in quasi-synchronous (QS) situations. Some Gold sequences have suitable cross correlation properties for multi code transmission in QS situations.Utilizing the properties, the proposed sequence assignment can greatly improve BER performance even in high data rate compared with random assignment.