Optimal signature sets for oversaturated quasi-scalable direct-sequence spread-spectrum systems

Signature sets that maximize the sum capacity of an oversaturated code-division multiple-access (CDMA) system are derived, under the constraint that the signature sets have to be quasi-scalable. It turns out that the optimal signature set is composed of orthogonal signature sets, with at most one in...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	IEEE transactions on information theory 2005-03, Vol.51 (3), p.1136-1139
Hauptverfasser:	Vanhaverbeke, F., Moeneclaey, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Associate members Australia Base stations Channel capacity Channels Code Division Multiple Access Code-division multiple access (CDMA) Comparative analysis Control systems Efficiency Exact sciences and technology Gaussian Information processing Information theory Multiaccess communication multiple access Optimization oversaturated channels Scalability Signatures Spectra Spread spectrum communication sum capacity Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments) Upper bound Wireless networks
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Signature sets that maximize the sum capacity of an oversaturated code-division multiple-access (CDMA) system are derived, under the constraint that the signature sets have to be quasi-scalable. It turns out that the optimal signature set is composed of orthogonal signature sets, with at most one incomplete orthogonal set. As compared to the Gaussian multiple-access channel (GMAC), the loss in spectral efficiency for this multiple-orthogonal CDMA (OCDMA) system remains very low.
ISSN:	0018-9448 1557-9654
DOI:	10.1109/TIT.2004.842737