| 改进空时分组编码算法在OFDM通信系统中的应用 |
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| 引用本文： | 王小刚. 改进空时分组编码算法在OFDM通信系统中的应用[J]. 吉林工学院学报, 2009, 30(3): 307-311 |
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| 作者姓名： | 王小刚 |
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| 作者单位： | 大庆油田,矿区服务事业部,黑龙江大庆,163453 |
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| 摘 要： | 提出了一种将改进的新型空时分组码与OFDM系统相结合的方法,使系统获得的最大分集增益为收发天线总数与频率衰落多径数的乘积,大大减小了对抗频率选择性衰落和窄带干扰。仿真结果显示,该系统的性能明显优于OFDM系统,随着接收天线数目的增加,系统的性能得到进一步改善。
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| 关 键 词： | 信道编码 空时分组编码 正交频分复用 发射分集 |
Improved space-time block coding algorithm applied in OFDM communication system |
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| WANG Xiao-gang. Improved space-time block coding algorithm applied in OFDM communication system[J]. Journal of Jilin Institute of Technology, 2009, 30(3): 307-311 |
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| Authors: | WANG Xiao-gang |
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| Affiliation: | Mining Services Division Daqing Oilfield;Daqing 163453;China |
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| Abstract: | A new method which combines the improved space-time block coding(NSTBC) with OFDM is proposed to make the maximum gain of the system be the product of the number of transmit-receive antennas and the number of multi-path,so that both the frequent selective fading and narrow band interference are decreased greatly.Experimental simulation results indicate that the performances of NSTBC-OFDM system is better than that of OFDM system and its performance would be improved more with the increase of antennas. |
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| Keywords: | channel coding space-time block coding OFDM （Orthogonal Frequency Division Multiplexing） transmit diversity. |
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