同步CDMA通信中硬限制并行干扰消除(PIC)的分析

2002 IEEE International Symposium on Circuits and Systems. Proceedings (Cat. No.02CH37353) Pub Date : 2002-08-07 DOI:10.1109/ISCAS.2002.1010628

Yu-Nan Lin, D. Lin

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引用次数: 2

摘要

并行干扰消除(PIC)是CDMA通信中被广泛考虑的一种多用户检测方法。虽然PIC接收器通常涉及非线性函数，但以前的性能分析主要针对线性PIC。我们发现纯硬限制PIC的性能在第二阶段之后可能不会得到改善。此外，对于两个用户的情况，一个阶段通常就足够了。此外，硬限制PIC的性能不会接近单用户限制。我们还开发了硬限制PIC性能数值评价的近似表达式。仿真结果与分析结果吻合较好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Analysis of hardlimiting parallel interference cancellation (PIC) for synchronous CDMA communication

Parallel interference cancellation (PIC) is a widely considered approach to multiuser detection in CDMA communication. While PIC receivers normally involve nonlinear functions, previous performance analyses mainly addressed linear PIC. We find that the performance of purely hardlimiting PIC may not improve after the second stage. In addition, for the two-user case, one stage usually suffices. Further, the performance of hardlimiting PIC does not approach the single-user limit. We also develop approximate expressions for numerical evaluation of the hardlimiting PIC performance. Simulation results agree well with the analysis.

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2002 IEEE International Symposium on Circuits and Systems. Proceedings (Cat. No.02CH37353)

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