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dc.contributor.authorLee, Tsern-Hueien_US
dc.contributor.authorYang, Zi-Yangen_US
dc.contributor.authorHuang, Qi-Quanen_US
dc.contributor.authorKuo, Yaw-Wenen_US
dc.date.accessioned2014-12-08T15:29:42Z-
dc.date.available2014-12-08T15:29:42Z-
dc.date.issued2012en_US
dc.identifier.isbn978-1-4673-4823-2en_US
dc.identifier.issn2159-3442en_US
dc.identifier.urihttp://hdl.handle.net/11536/21331-
dc.description.abstractThis paper proposes an efficient downlink resource allocation scheme for Orthogonal Frequency Division Multiple Access based WiMAX systems using the Adaptive Modulation and Coding mode operation. Given a set of user requests, the proposed algorithm determines the modulation scheme and allocates a two-dimensional (time and frequency) burst to each user. It is known that finding the optimal solution for such a resource allocation problem is NP-complete. To reduce the computation complexity, this paper proposes a heuristic solution. Compared with the Efficient Downlink Bandwidth Allocation (EDBA) algorithm [6], the proposed scheme achieves higher channel utilization and system throughput with similar execution time. Simulation results show that the average channel utilization of the proposed scheme is about 75 similar to 85% and that of EDBA is about 60 similar to 70%.en_US
dc.language.isoen_USen_US
dc.subjectOFDMAen_US
dc.subjectWiMAXen_US
dc.subjectBurst mappingen_US
dc.subjectAMCen_US
dc.titleAn Efficient Downlink Mapping Algorithm for AMC Mode in WiMAX Systemsen_US
dc.typeProceedings Paperen_US
dc.identifier.journalTENCON 2012 - 2012 IEEE REGION 10 CONFERENCE: SUSTAINABLE DEVELOPMENT THROUGH HUMANITARIAN TECHNOLOGYen_US
dc.contributor.department傳播研究所zh_TW
dc.contributor.departmentInstitute of Communication Studiesen_US
dc.identifier.wosnumberWOS:000315687200036-
Appears in Collections:Conferences Paper