A New Signaling Scheme for Large DS-CDMA Channels without CSI
2009 (English)In: 2009 7TH INTERNATIONAL SYMPOSIUM ON MODELING AND OPTIMIZATION IN MOBILE, AD HOC, AND WIRELESS, 2009, 478-484 p.Conference paper (Refereed)
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.
Signal Processing Telecommunications
IdentifiersURN: urn:nbn:se:kth:diva-46556DOI: 10.1109/WIOPT.2009.5291595ISI: 000275175100061ScopusID: 2-s2.0-74349092689ISBN: 978-1-4244-4920-0OAI: oai:DiVA.org:kth-46556DiVA: diva2:492065
7th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless. Seoul, SOUTH KOREA. JUN 23-27, 2009
QC 201202072012-02-072011-11-032016-05-12Bibliographically approved