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Estimation of Time Delays in Multirate Asynchronous DS-CDMA Systems
KTH, Superseded Departments, Signals, Sensors and Systems.
Wireless Communication, University of California, San Diego, La Jolla, CA 92093 USA.
KTH, Superseded Departments, Signals, Sensors and Systems.ORCID iD: 0000-0003-2298-6774
1998 (English)In: Proceedings International Symposium on Spread-Spectrum Techniques and Applications, IEEE , 1998, 97-101 p.Conference paper, Published paper (Refereed)
Abstract [en]

This article treats the problem of time delay estimation in a multirate asynchronous direct-sequence code-division multiple access (DS-CDMA) system in a near-far scenario. A subspace based algorithm for the time delayestimation problem is proposed. The algorithm is a minor modified version of the MUSIC estimator proposed by Ostman, Parkvall and Ottersten (see Proceedings of the 31st Asilomar Conference on Signals, Systems and Computers, 1997). Through theoretical analysis and simulations it is shown that the subspace approach to timedelay estimation in a multirate DS-CDMA system is applicable when the algorithm is applied in a way such that the low-rank structure of the system is conserved.

Place, publisher, year, edition, pages
IEEE , 1998. 97-101 p.
Keyword [en]
AWGN, Delay effects, Delay estimation, Direct-sequence code-division multiple access, Filters, Multiaccess communication, Multiple signal classification, Niobium, Signal processing, Signal processing algorithms
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-92551DOI: 10.1109/ISSSTA.1998.726204OAI: oai:DiVA.org:kth-92551DiVA: diva2:513574
Conference
IEEE 5th International Symposium on Spread Spectrum Techniques and Applications (ISSSTA'98). 02-04 Sep 1998, Sun City
Note
NR 20140805Available from: 2012-04-02 Created: 2012-04-02 Last updated: 2012-04-02Bibliographically approved

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Ottersten, Björn

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CiteExportLink to record
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  • apa
  • harvard1
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  • de-DE
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Output format
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