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dc.contributor.authorChang, Tain-Saoen_US
dc.contributor.authorFeng, Kai-Tenen_US
dc.contributor.authorLin, Jia-Shien_US
dc.contributor.authorWang, Li-Chunen_US
dc.date.accessioned2014-12-08T15:32:45Z-
dc.date.available2014-12-08T15:32:45Z-
dc.date.issued2012en_US
dc.identifier.isbn978-1-4673-0437-5en_US
dc.identifier.issn1525-3511en_US
dc.identifier.urihttp://hdl.handle.net/11536/22886-
dc.description.abstractThis paper studies the joint resource allocation problem of antenna, subchannel, transmission power, and phase duration for the relay-enhanced bidirectional multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) networks. The goal of resource allocation is to minimize the transmission energy in the networks with multiple relay stations (RSs) under the data rate constraints of user equipment (UE). The challenges of this resource allocation problem arise from the complication of multiple-phase assignments within a subchannel since the RS can provide an additional transmission path from the base station to the UEs. The green resource allocation (GRA) schemes with reduced computational complexity are proposed in this paper to develop the joint resource allocation algorithm for the UEs with the consideration of direct and two-hop communications. Both the separate downlink (DL) and uplink (UL) and mixed DL and UL relaying assignments are adopted to obtain the solutions for proposed GRA schemes. Simulation results show that the GRA schemes can provide comparably better energy conservation with the consideration of quality-of-service (QoS) support.en_US
dc.language.isoen_USen_US
dc.subjectMIMO-OFDMen_US
dc.subjectrelay stationen_US
dc.subjectresource allocationen_US
dc.subjectenergy conservationen_US
dc.titleGreen Resource Allocation for MIMO-OFDM Relay Networksen_US
dc.typeProceedings Paperen_US
dc.identifier.journal2012 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC)en_US
dc.citation.spage1386en_US
dc.citation.epage1391en_US
dc.contributor.department電機工程學系zh_TW
dc.contributor.departmentDepartment of Electrical and Computer Engineeringen_US
dc.identifier.wosnumberWOS:000324580701088-
Appears in Collections:Conferences Paper