High Precision Multi-cell Channel Estimation Algorithm Based on Successive Interference Cancellation

This paper proposes a novel multi-cell channel estimation algorithm based on successive interference cancellation (SIC) for Time Division Synchronization Code Division Multiple Access (TD-SCDMA) systems. Unlike existing interference cancellation (IC) schemes, where the interference reconstruction is cell based, the proposed algorithm develops an access user based interference reconstruction procedure starting from the access user with maximum peak-value power. Simulation results indicate that compared to existing IC methods, the proposed algorithm expresses not only higher estimation precision but also lower computational complexity.