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空时分组编码在IEEE802.16d-OFDM物理层的应用

Research on space-time block codes in IEEE802.16d-OFDM PHY layer
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摘要 讨论了空时编码技术中的空时分组编码.以两发一收Alamouti发射分级方案为例,阐述了空时分组编码的原理.在IEEE802.16dOFDM物理层引入了两发一收的空时分组编码,并进行了仿真;结果表明,空时分组编码与正交频分复用技术的结合,对无线通信系统性能有很大提高. The space-time block code （STBC） is discussed in this paper. Taking Alamouti transmit diversity scheme as an example, the theory of STBC was expatiated and the STBC of Alamouti was introduced to the IEEE802.16d-OFDM PHY layer and simulated. The results show that the performance of system is enhanced by the combination of space-time block coding and orthogonal frequency division multiplexing （OFDM）.
作者 江禹生 马荣
机构地区 重庆大学通信工程学院
出处 《应用科技》 CAS 2009年第1期26-29,共4页 Applied Science and Technology
关键词 空时分组编码 ALAMOUTI 发射分集 正交频分复用 space-time block code （STBC） Alamouti transmit diversity orthogonal frequency division multiple-xing （OFDM）
分类号 TN91 [电子电信—通信与信息系统]
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