完整後設資料紀錄
DC 欄位語言
dc.contributor.authorWang, Li-Chunen_US
dc.contributor.authorChang, Chih-Wenen_US
dc.contributor.authorHuang, Howarden_US
dc.date.accessioned2014-12-08T15:24:46Z-
dc.date.available2014-12-08T15:24:46Z-
dc.date.issued2006en_US
dc.identifier.isbn978-1-4244-0354-7en_US
dc.identifier.issn1550-3607en_US
dc.identifier.urihttp://hdl.handle.net/11536/17211-
dc.description.abstractMulti-carrier direct sequence code division multiple access (MC-DS-CDMA) systems can support multi-rate services with a great deal of flexibility by dynamically changing time- and frequency-domain spreading gains. However, in a frequency-selective fading channel, the multi-rate users using the time spreading codes with an ancestor-to-child relation, even with orthogonal frequency spreading codes, may still be affected by different quantities of multiple access interference (MAI). How to design an effective radio resource management strategy for the MC-DS-CDMA systems subject to different levels of MAIs becomes a new and important issue. In this paper, based on the error rate analysis in the physical layer, we observe and define a new performance metric, called the MAI coefficient, which can quantitatively predict the MAI effect imposed on a particular code in a multi-rate MC-DS-CDMA system. Furthermore, from the radio resource management perspective, we develop an interference avoidance code assignment scheme based on the MAI coefficient. By simulations and analysis, we demonstrate that the proposed interference avoidance code assignment method can effectively reduce the MAI in a multi-rate MC-DS-CDMA system, while maintaining very good call blocking rate performance.en_US
dc.language.isoen_USen_US
dc.titleAn Interference Avoidance Code Assignment Strategy for Multi-Rate MC-DS-CDMA with Time- and Frequency-Domain Spreadingen_US
dc.typeProceedings Paperen_US
dc.identifier.journal2006 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-12en_US
dc.citation.spage4894en_US
dc.citation.epage4899en_US
dc.contributor.department電信工程研究所zh_TW
dc.contributor.departmentInstitute of Communications Engineeringen_US
dc.identifier.wosnumberWOS:000287032705005-
顯示於類別:會議論文