| MIMO-OFDM系统中的一种空时频编码方案 |
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| 引用本文： | 刘顺兰,万学.MIMO-OFDM系统中的一种空时频编码方案[J].电路与系统学报,2012,17(3):139-144. |
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| 作者姓名： | 刘顺兰 万学 |
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| 作者单位： | 杭州电子科技大学通信工程学院,浙江杭州,310018 |
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| 摘 要： | 基于MIMO-OFDM系统,本文提出了一种空时频编码方案,其利用扩展码,使数据符号在空域、时域、频域得到扩展,通过设置合适的参数,能够在频率选择性衰落信道下获得满空间分集和满频率分集,同时该方案的编解码复杂度不高。仿真结果表明,该方法在低信噪比下,也具有良好的误码率性能。
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| 关 键 词： | 空时频编码 MIMO-OFDM系统 扩展码 |
A space-time-frequency coding scheme for MIMO-OFDM system |
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| LIU Shun-lan
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WAN Xue.A space-time-frequency coding scheme for MIMO-OFDM system[J].Journal of Circuits and Systems,2012,17(3):139-144. |
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| Authors: | LIU Shun-lan WAN Xue |
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| Institution: | 1(1.School of Communication Engineering,Hangzhou Dianzi University,Zhejiang 310018,China) |
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| Abstract: | This paper proposes a space-time-frequency coding scheme for MIMO-OFDM system.The proposed coding scheme utilizes a spreading code to make data symbols spread in space,time and frequency domain.By setting appropriate parameters,it can gain full spatial diversity and full frequency diversity over frequency selective fading channel,and its code and decode complexity of this scheme is low.The simulation results show that the proposed scheme has good performance in low SNR. |
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| Keywords: | space-time-frequency coding MIMO-OFDM system spreading code |
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