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dc.contributor.authorYang, Zi-Yangen_US
dc.contributor.authorKuo, Yaw-Wenen_US
dc.contributor.authorLee, Tsern-Hueien_US
dc.date.accessioned2014-12-08T15:36:01Z-
dc.date.available2014-12-08T15:36:01Z-
dc.date.issued2013en_US
dc.identifier.isbn978-1-4799-2825-5; 978-1-4799-2827-9en_US
dc.identifier.issn2159-3442en_US
dc.identifier.urihttp://hdl.handle.net/11536/24371-
dc.description.abstractThis paper proposes a downlink mapping algorithm for two-level requests in Orthogonal Frequency Division Multiple Access based IEEE 802.16e systems under the Adaptive Modulation and Coding (AMC) mode by which the modulation and coding scheme (MCS) of a user may be different for available subchannels. Given a set of requests each with two priorities, the proposed algorithm efficiently allocates a two-dimensional (time and frequency) burst with a suitable MCS to each user to maximize the system throughput with service differentiation. Simulation results show that the proposed algorithm outperforms the Efficient Downlink Mapping Allocation (EDMA) algorithm [5] in terms of the throughput of high priority data, but slightly sacrifice in overall throughput. The proposed algorithm can improve up to 98.8% more the average allocated ratio of urgent data than the EDMA.en_US
dc.language.isoen_USen_US
dc.subjectOFDMAen_US
dc.subjectIEEE 802.16een_US
dc.subjectBurst mappingen_US
dc.subjectAMCen_US
dc.titleA Downlink Mapping Algorithm for Two-Level Requests in IEEE 802.16e Systems under AMC Modeen_US
dc.typeProceedings Paperen_US
dc.identifier.journal2013 IEEE INTERNATIONAL CONFERENCE OF IEEE REGION 10 (TENCON)en_US
dc.contributor.department傳播研究所zh_TW
dc.contributor.departmentInstitute of Communication Studiesen_US
dc.identifier.wosnumberWOS:000334921600118-
Appears in Collections:Conferences Paper