瑞利衰落信道中先进一级并行干扰消除的评价

VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026) Pub Date : 2000-05-15 DOI:10.1109/VETECS.2000.851527

S. Yeom, P. Park, Yongwan Park

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引用次数: 3

摘要

为了克服DS-CDMA中的多址干扰，提出了一种改进的干扰消除方案。在ic(干扰消除器)中，PIC(并行干扰消除器)需要更多的级才能获得更好的误码率，而SIC(连续干扰消除器)面临功率重排序和大延迟的问题。为了解决这些问题，我们提出了一种改进的SIC和PIC相结合的干扰消除方案。该集成电路在初始阶段采用总接收信号排序法，提高了系统的性能。由于在初始阶段从输入信号中去除了MAI，其结构提取了良好的特性。所提系统的特点如下:(1)更小的延迟;(2)在最强用户信号中的MAI也减少了(与SIC不同);(3)它使用更少的级(与PIC不同)具有良好的误码率性能。

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Evaluation of parallel interference cancellation with the advanced first-stage in Rayleigh-fading channels

We introduce a modified interference cancellation scheme to overcome MAI (multiple access interference) in DS-CDMA. Among the ICs (interference cancellers), the PIC (parallel interference canceller) requires more stages to have the better BER, and the SIC (successive interference canceller) faces the problems of power reordering and large delays. To resolve these problems, we propose a modified interference cancellation scheme combining SIC and PIC. The proposed IC has improved the performance through the total received signal applied ranking method is fed into the initial stage. Its structure extracts the good characteristics because of the MAI removed from the input signal in the initial stage. The characteristics of the proposed system are as follows: (1) smaller delay, (2) the MAI in the strongest user signal is also reduced (unlike SIC), (3) it has a good BER performance using fewer stages (unlike PIC).

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来源期刊

VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026)

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