| 满速率满分集优化的单频网发射信号 |
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| 引用本文： | 沈莹,唐友喜.满速率满分集优化的单频网发射信号[J].电子科技大学学报(社会科学版),2010(5). |
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| 作者姓名： | 沈莹 唐友喜 |
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| 作者单位： | 电子科技大学通信抗干扰技术国家级重点实验室; |
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| 基金项目： | 国家自然科学基金(60572090,60832007,60602009); 教育部博士点基金(20050614009) |
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| 摘 要： | 针对分布式发射天线单频网,设计了3种发射信号及针对第一种发射信号的优化方案。首先通过误对概率分析,推导出满速率单频网能获得的分集度,设计了一种能达到该分集度的发射信号和具有满分集度的2种发射信号。然后针对第一种发射信号,提出了基于异步时延的子载波交织分组的信号优化方法,在接收机位置与性能之间建立了一种折中关系。仿真结果表明,设计的满分集发射信号能获得8dB左右增益,优化后的发射信号能获得5～9dB增益。
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| 关 键 词： | 异步时延 分集度 误对概率 单频网 |
Full-Diversity Full-Rate Optimum Transmit Signal for SFN |
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| SHEN Ying , TANG You-xi.Full-Diversity Full-Rate Optimum Transmit Signal for SFN[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2010(5). |
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| Authors: | SHEN Ying TANG You-xi |
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| Institution: | SHEN Ying , TANG You-xi (National Key Laboratory of Science , Technology on Communications,University of Electronic Science , Technology of China Chengdu 610054) |
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| Abstract: | To improve performance of single frequency networks employing distributed transmit antennas,some transmit signals are introduced in this paper.Pair-wise error probability is derived and one transmit signal is proposed to obtain the achievable diversity order.Then,two full-diversity(maximum diversity) transmit signal design methods are proposed.To optimize the first proposed transmit signal,one interleaved-partition subcarrier grouping scheme,establishing a tradeoff between receivers' location and performanc... |
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| Keywords: | asynchronous delay diversity order pair-wise error probability single frequency networks |
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