| V-BLAST OFDM最大发射分集度分析 |
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| 引用本文： | 官鹭,邵士海,唐友喜. V-BLAST OFDM最大发射分集度分析[J]. 电子技术应用, 2011, 37(7): 115-117,122 |
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| 作者姓名： | 官鹭 邵士海 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,四川成都,611731 |
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| 基金项目： | 国家自然科学基金(60902027;60901018)；中央高校基本科研业务费专项资金(ZYGX2009J008;ZYGX2009J010)；国家863高科技计划(2009AA01Z236)资助课题 |
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| 摘 要： | V-BLAST OFDM可以利用多径信道的频域选择性改善分集性能.目前相关研究缺乏分集度的理论分析,未能明确给出一种获取最大分集度的方法.针对这一问题,首先分析了V-BLAST系统可获得的最大分集度,然后找出了获得它所必须的条件,最后给出了一种可获得最大分集度的信号发射方法.在两发两收、BPSK调制、M.1225步行测...
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| 关 键 词： | 无线通信 V-BLAST OFDM 发射分集度 |
Maximum transmit diversity gain analysis of V-BLAST OFDM |
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| Guan Lu,Shao Shihai,Tang Youxi. Maximum transmit diversity gain analysis of V-BLAST OFDM[J]. Application of Electronic Technique, 2011, 37(7): 115-117,122 |
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| Authors: | Guan Lu Shao Shihai Tang Youxi |
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| Abstract: | V-BLAST OFDM can use the frequency selectivity to improve diversity performance.However,related researches are lack of the performance analysis at the present day,and short of a method to obtain the maximum diversity gain.Focusing on this problem,this paper firstly analyzes the value of the maximum achievable diversity gain,and then finds the necessary condition to achieve it.Finally an effective transmit scheme is proposed to attain the gain.Simulation results in M.1225 pedestrian test channel show that the proposed algorithm has 2 dB gain at BER of 1e-3 compared to conventional method using BPSK modulation. |
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| Keywords: | wireless communication V-BLAST OFDM transmit diversity |
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