| Efficient coding schemes with power allocation using space-time-frequency spreading |
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| 作者姓名： | Jiang Haining Luo Hanwen Tian Jifeng Song Wentao & Liu Xingzhao Dept. of Electronic Engineering Mobile Communications Laboratory Shanghai Jiaotong Univ. Shanghai P. R. China |
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| 作者单位： | Jiang Haining，Luo Hanwen，Tian Jifeng，Song Wentao & Liu Xingzhao Dept. of Electronic Engineering，Mobile Communications Laboratory，Shanghai Jiaotong Univ.，Shanghai 200030，P. R. China |
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| 基金项目： | 国家自然科学基金;国家高技术研究发展计划(863计划) |
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| 摘 要： | 1 .INTRODUCTIONOver the last few years , space-ti me coding1]hasreceived a lot of attention among communicationand information theory community , which in-tegrates the technique of antenna array spatial di-versity and channel coding,and can effectivelyi m-prove capacity gains and spectral efficiency . Mostwork on space-ti me coding has focused on the nar-row-band flat fading channels . However , non-flatfading channels such as frequency selective mul-tipath fading channels are the typical…
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| 收稿时间： | 1 January 2005. |
Efficient coding schemes with power allocation using space-time-frequency spreading |
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| Jiang Haining,Luo Hanwen,Tian Jifeng,Song Wentao & Liu Xingzhao Dept. of Electronic Engineering,Mobile Communications Laboratory,Shanghai Jiaotong Univ.,Shanghai ,P. R. China.Efficient coding schemes with power allocation using space-time-frequency spreading[J].Journal of Systems Engineering and Electronics,2006,17(2):263-267. |
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| Authors: | Jiang Haining Luo Hanwen Tian Jifeng Song Wentao Liu Xingzhao |
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| Institution: | Dept. of Electronic Engineering, Mobile Communications Laboratory,Shanghai Jiaotong Univ. , Shanghai 200030, P. R. China |
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| Abstract: | An efficient space-time-frequency (ST F) coding strategy for multi-input multi-output orthogonal frequency division multiplexing (MIMO-OFDM) systems is presented for high bit rate data transmission over frequency selective fading channels. The proposed scheme is a new approach to space-time-frequency coded OFDM (COFDM) that combines OFDM with space-time coding, linear precoding and adaptive power allocation to provide higher quality of transmission in terms of the bit error rate performance and power efficiency. In addition to exploiting the maximum diversity gain in frequency, time and space, the proposed scheme enjoys high coding advantages and low-complexity decoding. The significant performance improvement of our design is confirmed by corroborating numerical simulations. |
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| Keywords: | space-time-frequency linear precoding power allocation COFDM |
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