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Successive Interference Cancellation in Multi-Rate DS-CDMA Systems
KTH, Superseded Departments, Signals, Sensors and Systems.
KTH, Superseded Departments, Signals, Sensors and Systems.ORCID iD: 0000-0001-9697-9978
2003 (English)In: PIMRC 2003: 14TH IEEE 2003 INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS PROCEEDINGS, VOLS 1-3 2003 / [ed] Gong K, Niu ZH, Beijing: PUBLISHING HOUSE ELECTRONICS INDUSTRY , 2003, 1752-1756 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this work, a linear DS-CDMA receiver utilizing soft feedback interference cancellation is analyzed. To be able to meet diverse QoS requirements, we introduce a power control scheme that takes into account multi-QoS objectives, as well as the impact of imperfect interference cancellation. Our results are general and provide a framework for capacity comparison for many proposed linear successive cancellation receiver models. Several receiver modifications are included, partial interference cancellation: when only part of the signal is canceled, and limited cancellation; when not every signal is canceled. We derive the minimum power solution, from which the resulting receiver capacity can be fully characterized. The results show that there are large gains in user capacity from interference cancellation when the Eb/Io requirements are high. However, regardless of the required targets, we find that the maximum capacity is always achieved through partial successive interference cancellation. It is also found that worse performance than conventional single-user detection can occur.

Place, publisher, year, edition, pages
Beijing: PUBLISHING HOUSE ELECTRONICS INDUSTRY , 2003. 1752-1756 p.
National Category
Computer and Information Science
Research subject
SRA - ICT
Identifiers
URN: urn:nbn:se:kth:diva-27825DOI: 10.1109/PIMRC.2003.1260415ISI: 000188739500359ISBN: 7-5053-5066-8 (print)OAI: oai:DiVA.org:kth-27825DiVA: diva2:382617
Conference
14th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications BEIJING, PEOPLES R CHINA, SEP 07-10, 2003
Note
QC 20110110Available from: 2011-01-03 Created: 2011-01-03 Last updated: 2011-11-29Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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