A New Multiuser Detector with Low Decision Delay for Variable Processing Gain DS/CDMA Mobile Radio Systems

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dc.contributor.authorLee, Ju Ho-
dc.contributor.authorKim, Hyung-Myung-
dc.date.accessioned2009-11-20T06:38:24Z-
dc.date.available2009-11-20T06:38:24Z-
dc.date.issued1999-09-
dc.identifier.citation50th Vehicular Technology Conference (VTC 1999), Vol.5, pp.3004-3008en
dc.identifier.isbn0-7803-5435-4-
dc.identifier.urihttp://hdl.handle.net/10203/13010-
dc.description.abstractIn this paper, an efficient multiuser detection scheme with low decision delay is proposed for asynchronous variable processing gain (VPG) DS/CDMA systems in mobile radio channels without any restrictions on processing gains. An equivalent synchronous single bit rate DS/CDMA system is first formulated to break up the detection problem into the blocks of finite length called processing windows. A low delay multipath-combining decisionfeedback multiuser detector (LDMCDF) is then proposed based on the equivalent system model. Since the LDMCDF makes the decisions for data bits every processing window, the decision delay is less than the interval of one processing window. The effect of the processing window length on the performance of the LDMCDF is evaluated, and the simulation results show that the LDMCDF provides good performance with the negligible decision delay.en
dc.description.sponsorshipThe authors wish to acknowledge the financial support of the Korea Research Foundation made in the program year of 1998.en
dc.language.isoen_USen
dc.publisherIEEEen
dc.subjectmultiuser detectoren
dc.subjectLow Decision Delayen
dc.subjectDS/CDMA Mobile Radio Systemsen
dc.titleA New Multiuser Detector with Low Decision Delay for Variable Processing Gain DS/CDMA Mobile Radio Systemsen
dc.typeArticleen
dc.identifier.doi10.1109/VETECF.1999.800338-

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