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A New Signaling Scheme for Large DS-CDMA Channels without CSI
University of Electro-Communications, Department of Communication Engineering and Informatics.
Norwegian University of Science and Technology, Department of Electronics and Telecommunications.
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
Department of Systems Science, Kyoto University.
2009 (English)In: 2009 7TH INTERNATIONAL SYMPOSIUM ON MODELING AND OPTIMIZATION IN MOBILE, AD HOC, AND WIRELESS, 2009, 478-484 p.Conference paper (Refereed)
Abstract [en]

We propose a novel signaling scheme for wireless communication systems without channel state information (CSI). In that scheme, a bias of the occurrence probabilities of constellation points is utilized as pilot information known to the receiver, whereas pilot signals known to the receiver are sent in conventional pilot-based approaches. We evaluate the performance of the new scheme and conventional pilot-based schemes for a large direct-sequence code-division multiple-access (DS-CDMA) system, by using the replica method. It is shown that the new scheme outperforms the conventional pilot-based scheme when the amount of pilot information is large.

Place, publisher, year, edition, pages
2009. 478-484 p.
National Category
Signal Processing Telecommunications
URN: urn:nbn:se:kth:diva-46556DOI: 10.1109/WIOPT.2009.5291595ISI: 000275175100061ScopusID: 2-s2.0-74349092689ISBN: 978-1-4244-4920-0OAI: diva2:492065
7th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless. Seoul, SOUTH KOREA. JUN 23-27, 2009

QC 20120207

Available from: 2012-02-07 Created: 2011-11-03 Last updated: 2016-05-12Bibliographically approved

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ReferencesLink to record
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