A multi-user transmission using chaotic carriers

被引：3

作者：

Mangeot, Jean-Philippe ^{[1
]}

Launay, Frederic ^{[1
]}

Coirault, Patrick ^{[1
]}

机构：

[1] ESIP, LAII, F-86022 Poitiers, France

来源：

COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION | 2009年 / 14卷 / 06期

关键词：

Chaos communication; DS-CDMA; Synchronization; Levenberg-Marquadt; Estimation; Multi-user; SPREADING SEQUENCES; DS-CDMA; SYNCHRONIZATION; SIGNALS; SYSTEM;

D O I：

10.1016/j.cnsns.2008.08.017

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

From the unicity and orthogonality properties of chaotic sequences, it is demonstrated that a sum of N chaotic signals generated from a fixed class of chaotic systems is unique. Consequently, within a framework of a multi-user transmission, it is shown that synchronizing N chaotic carriers that emit simultaneously on the same frequency hand is feasible. In this paper, the carriers are generated from Chua's circuits and are modulated in amplitude by the information signal. Demodulation is ensured by the minimization of a cost function. Numerical simulations show that this synchronization method is robust in presence of noise and allows the integration of a high number of users. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：2709 / 2719

页数：11

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