The role of synchronization in digital communications using chaos - Part II: Chaotic modulation and chaotic synchronization.

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dc.contributor.author Kolumbán, Géza
dc.contributor.author Kennedy, Michael Peter
dc.contributor.author Chua, Leon O.
dc.date.accessioned 2010-06-30T15:19:42Z
dc.date.available 2010-06-30T15:19:42Z
dc.date.issued 1998-11
dc.identifier.citation Kolumban, G., Kennedy, M.P., and Chua, L.O. 1998. The role of synchronization in digital communications using chaos - Part II: Chaotic modulation and chaotic synchronization. IEEE Transactions On Circuits and Systems, 1 CAS, 45 (11), pp.1129-1140. en
dc.identifier.volume 45 en
dc.identifier.issued 11 en
dc.identifier.startpage 1129 en
dc.identifier.endpage 1140 en
dc.identifier.issn 1057-7122
dc.identifier.uri http://hdl.handle.net/10468/186
dc.identifier.doi 10.1109/81.735435
dc.description.abstract For pt. I see ibid., vol. 44, p. 927-36 (1997). In a digital communications system, data are transmitted from one location to another by mapping bit sequences to symbols, and symbols to sample functions of analog waveforms. The analog waveform passes through a bandlimited (possibly time-varying) analog channel, where the signal is distorted and noise is added. In a conventional system the analog sample functions sent through the channel are weighted sums of one or more sinusoids; in a chaotic communications system the sample functions are segments of chaotic waveforms. At the receiver, the symbol may be recovered by means of coherent detection, where all possible sample functions are known, or by noncoherent detection, where one or more characteristics of the sample functions are estimated. In a coherent receiver, synchronization is the most commonly used technique for recovering the sample functions from the received waveform. These sample functions are then used as reference signals for a correlator. Synchronization-based coherent receivers have advantages over noncoherent receivers in terms of noise performance, bandwidth efficiency (in narrow-band systems) and/or data rate (in chaotic systems). These advantages are lost if synchronization cannot be maintained, for example, under poor propagation conditions. In these circumstances, communication without synchronization may be preferable. The theory of conventional telecommunications is extended to chaotic communications, chaotic modulation techniques and receiver configurations are surveyed, and chaotic synchronization schemes are described en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher IEEE en
dc.rights ©1998 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. en
dc.subject Chaos en
dc.subject Spread spectrum communication en
dc.subject Digital modulation en
dc.subject.lcsh Digital communications en
dc.subject.lcsh Modulation (Electronics) en
dc.title The role of synchronization in digital communications using chaos - Part II: Chaotic modulation and chaotic synchronization. en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Michael Peter Kennedy, Vice President Research, University College Cork, Cork, Ireland. Email: peter.kennedy@ucc.ie en
dc.internal.availability Full text available en
dc.status Peer reviewed
dc.date.updated 2010-06-05T10:32:40Z
dc.description.version Published Version
dc.internal.rssid 347462
dc.description.status Peer reviewed en
dc.identifier.journaltitle IEEE Transactions on Circuits and Systems — I: Fundamental theory and applications en
dc.internal.IRISemailaddress peter.kennedy@ucc.ie en


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