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dc.contributor.authorYu, Yu-Tingen_US
dc.contributor.authorChao, Hsi-Luen_US
dc.date.accessioned2014-12-08T15:14:13Z-
dc.date.available2014-12-08T15:14:13Z-
dc.date.issued2007en_US
dc.identifier.isbn978-1-4244-1143-6en_US
dc.identifier.urihttp://hdl.handle.net/11536/10888-
dc.description.abstractIEEE 802.16 Broadband Wireless Access system (BWA) is a promising emerging technology. In the IEEE 802.16 standard, multiple data transmission rates are defined by employing different modulation and channel coding schemes. How to select a proper mode affects the system performance significantly. In this paper, an efficient link rate adaptation algorithm, named QoS-aware Link Rate Adaptation (Q-LRA), is proposed. Q-LRA takes both QoS demand and channel condition into consideration to determine the best mode. The QoS demand of a connection is represented as packet error rate (PER). Based on the specified PER, the BS calculates the required signal-to-noise ratio (SNR) threshold of each mode. By comparing the measured SNR and all modes' SNR thresholds, the BS suggests the SS the best mode. The performance of Q-LRA is evaluated by simulations. The simulation results show that Q-LRA improves system throughput and guarantees each connection's QoS demand.en_US
dc.language.isoen_USen_US
dc.titleQoS-aware link rate adaptation in IEEE 802.16 Broadband Wireless Access systemsen_US
dc.typeProceedings Paperen_US
dc.identifier.journal2007 IEEE 18TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOLS 1-9en_US
dc.citation.spage2374en_US
dc.citation.epage2378en_US
dc.contributor.department資訊工程學系zh_TW
dc.contributor.departmentDepartment of Computer Scienceen_US
dc.identifier.wosnumberWOS:000253402501183-
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