Pseudo-chaotic time hopping for UWB impulse radio

被引：86

作者：

Maggio, GM ^{[1
]}

Rulkov, N

Reggiani, L

机构：

[1] Univ Calif San Diego, Ctr Wireless Commun, La Jolla, CA 92093 USA

[2] STMicroelect Inc, AST, San Diego, CA 92121 USA

[3] Univ Calif San Diego, Inst Nonlinear Sci, La Jolla, CA 92093 USA

[4] Politecn Milan, Dipartimento Elettron & Informaz, I-20133 Milan, Italy

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | 2001年 / 48卷 / 12期

关键词：

chaos; impulse radio; maximum-likelihood detection; performance bounds; scalability; symbolic dynamics; UWB;

D O I：

10.1109/TCSI.2001.972849

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we propose a pseudo-chaotic modulation suitable for ultrawide-bandwidth impulse-radio communication systems. The coding scheme is based upon controlling the symbolic dynamics of a chaotic map for encoding the digital information to be transmitted. The pseudo-chaotic time hopping enhances the spread-spectrum characteristics of the system, by removing most periodic components from the transmitted signal. A maximum-likelihood detector for the proposed scheme is presented and its scalability features are illustrated. Finally, theoretical performance bounds for both soft and hard Viterbi decoding are derived and compared with the simulation results.

引用

页码：1424 / 1435

页数：12

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