| 一种跳相发射分集技术的差分方案 |
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| 引用本文： | 黄韬,李美玲,朱晓路,袁超伟.一种跳相发射分集技术的差分方案[J].无线电通信技术,2006,32(4):16-18,29. |
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| 作者姓名： | 黄韬 李美玲 朱晓路 袁超伟 |
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| 作者单位： | 北京邮电大学,通信网络技术综合研究所,北京,100876 |
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| 摘 要： | 将差分编码方案引入到跳相发射分集系统中,提出了跳相差分空时编码(PHDSTBC)方案,该方案有效地改善了整个系统中的差错性能和时延。同时,伪随机的相位跳变大大增强了系统的保密性及干扰对抗性,提高了系统抗突发错误和深度衰落的能力。仿真结果表明,在准静态Rayleigh信道下,误码率为10-3时,新方案相比TarokhJafarkhani差分空时方案(TJDSTBC)性能有1.5dB的信噪比增益。
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| 关 键 词： | 差分 跳相 发射分集 空时编码 |
| 文章编号： | 1003-3114（2006）04-16-3 |
| 收稿时间： | 2005-11-13 |
| 修稿时间： | 2005-11-13 |
A differential scheme for phase hopping transmit diversity |
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| HUANG Tao,LI Mei-ling,ZHU Xiao-lu,YUAN Chao-wei.A differential scheme for phase hopping transmit diversity[J].Radio Communications Technology,2006,32(4):16-18,29. |
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| Authors: | HUANG Tao LI Mei-ling ZHU Xiao-lu YUAN Chao-wei |
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| Affiliation: | School of Telecommunication and Network Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | The differential coding scheme is introduced in the phase hopping transmit diversity system,and the phase hopping and differential space-time block coding (PH-DSTBC) scheme is presented. The scheme effectively improves the BER performance and reduces the time delay. Moreover,the random phase hopping greatly enhances the security and anti-jamming of the system,improves the ability of resisting the burst error and deep fading. The simulation results show that new scheme performs better than TJ-DSTBC by 1.5 dB R SN gain at bit error rate of 10 -3 over Rayleigh channels. |
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| Keywords: | differential phase hopping transmit diversity space-time coding |
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