Efficient MC-DS-CDMA transmitter for ICI self-mitigation

A multicarrier direct sequence code division multiple access (MC-DS-CDMA) transmitter that takes advantage of the properties of the CDMA codes to minimise intercarrier interference (ICI) is presented. The proposed system does not add significant complexity to the conventional MC-DS-CDMA system and i...

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Veröffentlicht in:	Electronics letters 2006-04, Vol.42 (9), p.541-542, Article 541
Hauptverfasser:	BARBANCHO, I, TARDON, L. J, BARBANCHO, A. M
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Coding, codes Exact sciences and technology Information, signal and communications theory Radiocommunications Signal and communications theory Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments) Transmitters. Receivers
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Beschreibung
Zusammenfassung:	A multicarrier direct sequence code division multiple access (MC-DS-CDMA) transmitter that takes advantage of the properties of the CDMA codes to minimise intercarrier interference (ICI) is presented. The proposed system does not add significant complexity to the conventional MC-DS-CDMA system and improves overall performance without lowering the transmission rate. The CDMA signals transmitted employ two codes: an orthogonal variable spreading factor code and a scrambling sequence. This transmitter not only reduces ICI, but also allows flexible multi-rate transmissions. It can be employed in both synchronous or asynchronous uplink and downlink.
ISSN:	0013-5194 1350-911X
DOI:	10.1049/el:20060581