Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/46796
DC FieldValueLanguage
dc.contributor.authorShen, Y.S.en_US
dc.contributor.author翁芳標zh_TW
dc.contributor.authorUeng, F.B.en_US
dc.contributor.authorChen, J.D.en_US
dc.contributor.authorHuang, S.T.en_US
dc.date2010zh_TW
dc.date.accessioned2014-06-06T08:22:13Z-
dc.date.available2014-06-06T08:22:13Z-
dc.identifier.issn0018-9545zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/46796-
dc.description.abstractA flexible time-hopping (TH) multiple-access (MA) ultrawideband (UWB) system employing M-ary orthogonal pulse position modulation (PPM) is implemented and analyzed in this paper. In contrast to the conventional TH method using the fixed partition of TH slots, a new flexible TH scheme that utilizes the whole frame to carry out TH and PPM is proposed. The advantage of the proposed scheme is to increase the modulation level of PPM and improve the capability of MA. Based on the analytical CF technique, we also derive the probability distribution of the MA interference (MAI) and the average symbol error probability of the proposed scheme. Simulation results are provided to demonstrate the effectiveness of the proposed TH system and verify the analytical frameworks in both the additive white Gaussian noise (AWGN) channel and the realistic UWB fading channels. Irrespective of the adopted modulation level of PPM, the proposed TH system outperforms the conventional TH scheme. The tradeoff of the system parameters for the proposed TH system under the constraints of fixed bit rate and signal bandwidth is also examined.en_US
dc.language.isoen_USzh_TW
dc.relationIeee Transactions on Vehicular Technologyen_US
dc.relation.ispartofseriesIeee Transactions on Vehicular Technology, Volume 59, Issue 2, Page(s) 742-753.en_US
dc.relation.urihttp://dx.doi.org/10.1109/tvt.2009.2035130en_US
dc.subjectMultiple-access interference (MAI)en_US
dc.subjecttime hopping (TH)en_US
dc.subjectultrawidebanden_US
dc.subject(UWB)en_US
dc.subjectm-ary ppmen_US
dc.subjectmultiuser interferenceen_US
dc.subjectimpulse radioen_US
dc.titleA High-Capacity TH Multiple-Access UWB System With Performance Analysisen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1109/tvt.2009.2035130zh_TW
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextno fulltext-
item.cerifentitytypePublications-
item.grantfulltextnone-
item.languageiso639-1en_US-
item.openairetypeJournal Article-
Appears in Collections:通訊工程研究所
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