CDMA-AIC: Highly Spectrum-Efficient CDMA Cellular System Based on Adaptive Interference Cancellation (Special Issue on Advanced Adaptive Radio Communication Technologies)

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概要

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• This paper describes a CDMA cellular system based on adaptive interference cancellation (CDMA-AIC) with a large capacity. In the CDMA-AIC, each base station employs a single-user type adaptive interference canceller (AIC), which consists of a fractionally chip-spaced code-orthogonalizing filter (COF) and a coherent detector. The AIC adaptively removes power-dominant multiple-access interferences (MAIs) in the cellular system, regardless of whether they are intra-cell interferences or inter-cell interferences, without any information about them, such as spreading codes, signal received timings and channel parameters. Evaluation under the multiple-cell environment demonstrates that the reverse link capacity of the CDMA-AIC with QPSK modulation is 3.6 times as large as the capacity of the CDMA without MAI cancellation. Further, the capacity is less sensitive to transmission power control errors than that of the conventional CDMA systems.

• 社団法人電子情報通信学会の論文
• 1996-03-25

著者

• Yoshida Shousei

  Campc Research Laboratories Nec Corporation

• USHIROKAWA Akihisa

  CampC Research Laboratories, NEC Corporation

• Ushirokawa Akihisa

  Campc Research Laboratories Nec Corporation

関連論文

• Performance Evaluation of CDMA Adaptive Interference Canceller with RAKE Structure Using Developed Testbed in Multiuser and Multipath Fading Environment (Special Section on Spread Spectrum Techniques and Applications)
• Performance Evaluation on Power Control and Diversity of Next-Generation CDNA System(Special Issue on Third Generation Land Mobile Communication Systems)
• Application of Circuit-Level Hot-Carrier Reliability Simulation to Memory Design
• CDMA-AIC: Highly Spectrum-Efficient CDMA Cellular System Based on Adaptive Interference Cancellation (Special Issue on Advanced Adaptive Radio Communication Technologies)

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