A low-complexity joint synchronization and detection algorithm for single-band DS-CDMA UWB communications

The problem of asynchronous direct-sequence code-division multiple-access (DS-CDMA) detection over the ultra-wideband (UWB) multipath channel is considered. A joint synchronization, channel-estimation, and multiuser detection scheme based on the adaptive linear minimum mean square error (LMMSE) rece...

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Veröffentlicht in:	EURASIP Journal on Applied Signal Processing 2005-03, Vol.2005 (3), p.462-470, Article 475431
1. Verfasser:	CHRISTENSEN, Lars P. B
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Detection, estimation, filtering, equalization, prediction Exact sciences and technology Information, signal and communications theory Signal and communications theory Signal, noise Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments)
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Zusammenfassung:	The problem of asynchronous direct-sequence code-division multiple-access (DS-CDMA) detection over the ultra-wideband (UWB) multipath channel is considered. A joint synchronization, channel-estimation, and multiuser detection scheme based on the adaptive linear minimum mean square error (LMMSE) receiver is presented and evaluated. Further, a novel nonrecursive least-squares algorithm capable of reducing the complexity of the adaptation in the receiver while preserving the advantages of the recursive least-squares (RLS) algorithm is presented.
ISSN:	1110-8657 1687-6180 1687-6180
DOI:	10.1155/ASP.2005.462