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dc.contributor.authorHsieh, YTen_US
dc.contributor.authorWu, WRen_US
dc.date.accessioned2014-12-08T15:36:29Z-
dc.date.available2014-12-08T15:36:29Z-
dc.date.issued2005-01-01en_US
dc.identifier.issn1536-1276en_US
dc.identifier.urihttp://dx.doi.org/10.1109/TWC.2004.840248en_US
dc.identifier.urihttp://hdl.handle.net/11536/24823-
dc.description.abstractParallel interference cancellation (PIC) is considered a simple yet effective multiuser detector for direct-sequence code-division multiple-access (DS-CDMA) systems. However, system performance may deteriorate due to unreliable interference cancellation in the early stages. Thus, a partial PIC detector in which partial cancellation factors (PCFs) are introduced to control the interference cancellation level has been developed as a remedy. Although PCFs are crucial, complete solutions for their optimal values are not available. In this paper, we consider a two-stage decoupled partial PIC receiver. Using the minimum bit error rate (BER) criterion, we derive a complete set of optimal PCFs. This includes optimal PCFs for periodic and aperiodic spreading codes in additive white Gaussian channels and multipath channels. Simulation results show that our theoretical optimal PCFs agree closely with empirical ones. Our two-stage partial PIC using derived optimal PCFs outperforms not only a two-stage, but also a three-stage full PIC.en_US
dc.language.isoen_USen_US
dc.subjectdirect-sequence code-division multiple-access (DS-CDMA)en_US
dc.subjectmultiple-access interferenceen_US
dc.subjectmultiuser detectionen_US
dc.subjectparallel interference cancellationen_US
dc.titleOptimal two-stage decoupled partial PIC receivers for multiuser detectionen_US
dc.typeArticleen_US
dc.identifier.doi10.1109/TWC.2004.840248en_US
dc.identifier.journalIEEE TRANSACTIONS ON WIRELESS COMMUNICATIONSen_US
dc.citation.volume4en_US
dc.citation.issue1en_US
dc.citation.spage112en_US
dc.citation.epage127en_US
dc.contributor.department電信工程研究所zh_TW
dc.contributor.departmentInstitute of Communications Engineeringen_US
dc.identifier.wosnumberWOS:000226347600015-
dc.citation.woscount17-
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