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基于SFBC的MIMO-OFDM在频率选择性信道中的应用

MIMO-OFDM and its application in frequency choosing channel based on SFBC
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摘要 针对于多径时延引起频率选择性衰落信道,在MIMO-OFDM的基础上采用了一种空频分组编码(space-frequency block codes———SFBC)技术。空频分组编码是在OFDM符号基础上,对一个OFDM符号中的子载波进行分组编码,使得同一帧上子载波在不同的天线上发送。现给出了SFBC编码及其解码算法,并在不同多径时延衰落条件下进行了仿真,验证了SFBC对于频率选择性衰落系统性能的改善。 In this paper, space frequency block codes （SFBC） is proposed based on multiple-input multipleoutput orthogonal frequency division multiplexing （MIMO - OFDM） systems. SFBC is encoded at adjacent subcarriers and makes one frame signal transmitted in different antennas. The method of encoding and decoding for SFBC is described. The simulations results show that SFBC is efficient to overcome the multi - path influence.
作者 康美萍 程韧
机构地区 空军工程大学电讯工程学院
出处 《信息技术》 2006年第5期56-58,共3页 Information Technology
关键词 SFBC OFDM MIMO 多径衰落信道 SFBC OFDM MIMO multi - path fading channel
分类号 TN919.31 [电子电信—通信与信息系统]
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参考文献5

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二级参考文献13

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共引文献5

信息技术
2006年 第5期

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