| 两种新的码分多址多用户检测器 |
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| 引用本文： | 王军,王永德.两种新的码分多址多用户检测器[J].四川大学学报(自然科学版),1995,32(2):170-175. |
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| 作者姓名： | 王军 王永德 |
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| 摘 要： | 通过分析同步码分多址通信中多用户检测器存在的多址干扰和ｎｅａｒ－ｆａｒ问题，提出了已知信号能量情况下运算量较小的递推反馈检测器（ＲＦＤ）．它利用检测出的强用户信号逐级反馈消除多址干扰和ｎｅａｒ－ｆａｒ．在未知信号能量情况下，提出利用相关器输出峰值平滑估计信号能量，从而得到具有一定能量跟踪特性的峰值反馈检测器（ＰＦＤ）．运用ＭｏｎｔｅＣａｒｌｏ模拟证明了ＲＦＤ和ＰＦＤ的优越性。
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| 关 键 词： | 码分多址 多用户检测器 多址通信 |
TWO NEW MULTIUSER DETECTORS IN CDMA CHANNEL |
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| Wang Jun Wang Yongde.TWO NEW MULTIUSER DETECTORS IN CDMA CHANNEL[J].Journal of Sichuan University (Natural Science Edition),1995,32(2):170-175. |
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| Authors: | Wang Jun Wang Yongde |
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| Institution: | Department of Radio Electronics |
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| Abstract: | In this paper, the problems of near- far and multipleaccess interference in Code-Division Multiple-Access Detector(CDMA ) are analyzed , and for the case in which the signal energyis known, a new recursive feedback detector ( RFD ) is proposed ,which has less computationcomplexity . The RFD alleviates multipleaccess interference by detecting stronger user signals. Whenthe signal energy is not known, a peak- value feedback detector (PFD)is proposed , which has acertain capability of energy tracking.A performance comparison analysis for the two detectors iscarried out via Monte Carlo simulation . |
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| Keywords: | code-division multiple-access multiuser derector |
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