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Pilot channel aided adaptable interference cancellation scheme for uplink DS/CDMA mobile radio systems

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3 Author(s)
Tang, C.-H.. ; Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Wei-Yun Chang ; Che-Ho Wei,

In this paper, we propose a pilot channel aided adaptable interference cancellation (IC) scheme which combines serial (SIC) and parallel (PIC) interference cancellation to adapt to different services under different circumstances for uplink wideband DS/CDMA systems. The processing delay and computational complexity can be adjusted based on system loading and required performance. The interference between data channel signals and pilot channel signals under multipath fading are also taken into consideration. This results in better quality both on channel parameter estimation and user data detection. Compared with SIC and PIC, the proposed scheme shows better performance with reasonable hardware while it needs shorter processing delay than SIC

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Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE  (Volume:5 )

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