文章基本信息

标题：適応スロット割り当て方式と適応変調方式を用いたOFDMA通信システム
本地全文：下载
作者：Fang Wang ; Yuanrun Teng ; Katsuhiro Naito 等
期刊名称：映像情報メディア学会誌
印刷版ISSN：1342-6907
电子版ISSN：1881-6908
出版年度：2008
卷号：62
期号：6
页码：914-923
DOI：10.3169/itej.62.914
出版社：The Institute of Image Information and Television Engineers
摘要：This paper proposes the Orthogonal Frequency Division Multiple Access (OFDMA) transmission scheme with an adaptive slot and bit allocation method which can provide the broadband wireless LAN (WLAN) systems. From the fact that the radio links between different users and a base station experience the independent multi-path fading, this paper proposes a priority-based adaptive slot and bit allocation method in conjunction with an allocation adjustment method. The proposed method can achieve the higher efficient usage of frequency resource than those for the conventional fixed slot assignment with adaptive bit allocation method and the fixed bit assignment with adaptive slot allocation method. This paper presents various computer simulation results to evaluate the proposed method and demonstrates that the proposed method can achieve the higher frequency resource utilization with less computation complexity in the severe frequency selective multi-path fading channels.
关键词：OFDMA;Multi-path fading;Adaptive slot and bit allocation;Priority-based rule;Allocation adjustment;WLAN