关于中上米信号的统计

ITS'98 Proceedings. SBT/IEEE International Telecommunications Symposium (Cat. No.98EX202) Pub Date : 1998-08-09 DOI:10.1109/ITS.1998.718421

M. Yacoub, J.E. Vargas B., L. de R. Guedes

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引用次数: 4

摘要

本文提出了一个衰落模型，该模型提供了一种形式化但简单的方法来获得m=n/2, n为非零整数时Nakagami-m分布的精确公式。在此模型的基础上，完成了包络及其时间导数的联合分布，并推导出了平交率(闭式公式)和平均衰落持续时间的精确公式。仿真曲线与精确公式进行了对比，两者吻合较好。虽然导出了m的离散值(m是1/2的整数倍)，但对于任何实值m/ splges / 1/2，这些表达式都没有数学约束。

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On the statistics of the Nakagami-m signal

This paper proposes a fading model that leads to a formal, but simple, method to obtain the exact formula of the Nakagami-m distribution for m=n/2, n a non-zero integer number. Based on such a model the joint distribution of the envelope and its time derivative is accomplished and exact formulas for the level crossing rate (closed-form formula) and for the average fade duration are derived. Simulation curves and exact formulas are checked against each other and a perfect agreement between them is attained. Although derived for discrete values of m (m being an integer multiple of 1/2 ) there are no mathematical constraints for these expressions to be used for any real value m/spl ges/ 1/2.

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ITS'98 Proceedings. SBT/IEEE International Telecommunications Symposium (Cat. No.98EX202)

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