Chaotic complex spreading sequences for asynchronous DS-CDMA-Part I: System modeling and results

Gianluca Mazzini, Gianluca Setti, Riccardo Rovatti

Research output: Contribution to journalArticlepeer-review

309 Scopus citations


This paper and its companion are devoted to the evaluation of the impact of chaos-based techniques on communications systems with asynchronous code division multiple access. Sequences obtained by repeating a truncated and quantized chaotic time series are compared with classical ra-sequences and Gold sequences by means of a performance index taken from communication theory which is here defined and thoroughly discussed. This analysis reveals that, unlike conventional sequences, chaotic spreading codes can be generated for any number of users and allocated bandwidth. Numerical simulations are reported, showing that systems based on chaotic spreading sequences perform generally better than the conventional ones. Some analytical tools easing the comprehension of these advantages are here summarized and proved in Part II where formal arguments are developed and discussed to ensure general applicability of chaotic spreading codes. © 1997 IEEE.
Original languageEnglish (US)
Pages (from-to)937-947
Number of pages11
JournalIEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications
Issue number10
StatePublished - Dec 1 1997
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


Dive into the research topics of 'Chaotic complex spreading sequences for asynchronous DS-CDMA-Part I: System modeling and results'. Together they form a unique fingerprint.

Cite this