Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/71613
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dc.contributor.authorChen, J.D.en_US
dc.contributor.authorUeng, F.B.en_US
dc.contributor.authorChang, J.C.en_US
dc.contributor.authorLin, C.L.en_US
dc.date2012zh_TW
dc.date.accessioned2014-06-11T06:02:06Z-
dc.date.available2014-06-11T06:02:06Z-
dc.identifier.issn1530-8669zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/71613-
dc.description.abstractAdaptive antennas, with spatial processing, used in code division multiple access (CDMA) systems can enhance range, reliability, and capacity. Moreover, the adaptive beamforming technologies can remove unwanted noise and interference from the received signal. In this paper, we propose the adaptive direct sequence (DS) CDMA antenna receivers and compare their performances in three existing multirate methodologiesvariable processing gain (VPG), variable chip rate, and multicode systems for multiuser communications in multipath fading channels. Simulation results show that the processing powers of both narrowband and wideband adaptive antennas are not enough. We propose a powerful processing technique named Wiener Code Filter (WCF) to retrieve the shortcomings. Mean square error (MSE) analyses are also given in this paper. Some simulation examples are given to compare the performances of the proposed multirate structures. Copyright (c) 2010 John Wiley & Sons, Ltd.en_US
dc.language.isoen_USzh_TW
dc.relationWireless Communications & Mobile Computingen_US
dc.relation.ispartofseriesWireless Communications & Mobile Computing, Volume 12, Issue 2, Page(s) 169-183.en_US
dc.relation.urihttp://dx.doi.org/10.1002/wcm.950en_US
dc.subjectmultirateen_US
dc.subjectCDMAen_US
dc.subjectadaptive antennaen_US
dc.subjectmultiuser detectionen_US
dc.subjectsmart antennasen_US
dc.subjectsignalsen_US
dc.subjectchannelsen_US
dc.subjectreceiveren_US
dc.titlePerformance evaluation of multirate DS-CDMA communication systems with adaptive antennasen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1002/wcm.950zh_TW
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