给定自相关副瓣和相互相关副瓣的DS无开槽分组无线网络性能分析

Proceedings of IEEE 3rd International Symposium on Spread Spectrum Techniques and Applications (ISSSTA'94) Pub Date : 1994-07-04 DOI:10.1109/ISSSTA.1994.379582

L. Pap

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引用次数: 2

摘要

研究了同步(芯片开槽)信道中采用单扩展码或CDMA编码的多址DS非开槽ALOHA系统的性能分析。与以往的工作不同，本文的重点是在扩频码之间具有自相关和相互相关副瓣的系统的性能分析。他们提出了一种基于干扰水平的多变量概率产生函数的新方法，该方法便于在不需要纠错码的情况下计算不同系统的分组错误概率。本文计算了吞吐量的下界。并考虑了DS码长趋于无穷时的渐近性。一般都是对芯片扩展ALOHA模型进行分析，但其结果也适用于位扩展ALOHA系统

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Performance analysis of DS unslotted packet radio networks with given auto- and crosscorrelation sidelobes

The paper is concerned with the performance analysis of multiple-access DS unslotted ALOHA systems with fix packet length in synchronous (chip slotted) channels with single spreading code or CDMA coding. In contrast with previous work the present authors focus on the performance analysis of a system that can have given auto- and crosscorrelation sidelobes between the spreading codes. They present a novel approach based on the multivariable probability generator function of the level of interferences which facilitates the calculation of packet error probability for different systems without error correcting codes. In the paper the lower bound of the throughput is calculated. And its asymptotic behaviour is considered, when the length of the DS code goes to infinity. Generally the chip spread ALOHA model is analyzed, but the results can be used in the case of bit spread ALOHA systems.<>

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Proceedings of IEEE 3rd International Symposium on Spread Spectrum Techniques and Applications (ISSSTA'94)

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