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快衰落瑞利信道下分布式線性卷積空時(shí)碼的分集增益

劉毅 馬瑩 劉軒

劉毅, 馬瑩, 劉軒. 快衰落瑞利信道下分布式線性卷積空時(shí)碼的分集增益[J]. 電子與信息學(xué)報(bào), 2019, 41(1): 32-37. doi: 10.11999/JEIT180343
引用本文: 劉毅, 馬瑩, 劉軒. 快衰落瑞利信道下分布式線性卷積空時(shí)碼的分集增益[J]. 電子與信息學(xué)報(bào), 2019, 41(1): 32-37. doi: 10.11999/JEIT180343
Yi LIU, Ying MA, Xuan LIU. Diversity Gain of Distributed Linear Convolutive Space-time Code on Fast Fading Rayleigh Channels[J]. Journal of Electronics & Information Technology, 2019, 41(1): 32-37. doi: 10.11999/JEIT180343
Citation: Yi LIU, Ying MA, Xuan LIU. Diversity Gain of Distributed Linear Convolutive Space-time Code on Fast Fading Rayleigh Channels[J]. Journal of Electronics & Information Technology, 2019, 41(1): 32-37. doi: 10.11999/JEIT180343

快衰落瑞利信道下分布式線性卷積空時(shí)碼的分集增益

doi: 10.11999/JEIT180343 cstr: 32379.14.JEIT180343
基金項(xiàng)目: 國(guó)家自然科學(xué)基金(61671341),數(shù)據(jù)鏈技術(shù)重點(diǎn)實(shí)驗(yàn)室開(kāi)放基金(CLDL-20182412),國(guó)家111計(jì)劃基金(B08038)
詳細(xì)信息
    作者簡(jiǎn)介:

    劉毅:男,1978年生,教授,研究方向?yàn)閷拵o(wú)線通信技術(shù)、空時(shí)編碼與協(xié)作通信技術(shù)、通信對(duì)抗

    馬瑩:女,1993年生,碩士生,研究方向?yàn)閷拵o(wú)線通信技術(shù)、協(xié)作通信與非正交多址技術(shù)

    劉軒:男,1991年生,碩士生,研究方向?yàn)閷拵o(wú)線通信技術(shù)、協(xié)作通信與空時(shí)編碼技術(shù)

    通訊作者:

    劉毅 yliu@xidian.edu.cn

  • 中圖分類號(hào): TN929.5

Diversity Gain of Distributed Linear Convolutive Space-time Code on Fast Fading Rayleigh Channels

Funds: The National Natural Science Foundation of China (61671341), The Foundation of Key Laboratory of Data Link (CLDL-20182412), The National Foundation of 111 Project (B08038)
  • 摘要:

    在無(wú)線中繼網(wǎng)絡(luò)中,中繼節(jié)點(diǎn)間的隨機(jī)傳輸延遲將導(dǎo)致顯著的性能下降。因此,針對(duì)慢衰落瑞利信道提出可容忍隨機(jī)時(shí)延的分布式線性卷積空時(shí)碼(DLC-STC),但該類空時(shí)碼在快衰落信道下的分集性能尚未明確。該文從理論上證明了DLC-STC在快衰落瑞利信道下的分集增益。分析表明,DLC-STC雖然最初是在慢衰落信道下被提出的,但它在快衰落瑞利信道下通過(guò)利用最大似然(ML)接收機(jī),仍可獲得滿異步協(xié)作分集增益,仿真結(jié)果驗(yàn)證了該理論分析,仿真結(jié)果同時(shí)表明:在快衰落瑞利信道下,DLC-STC采用MMSE-DFE接收機(jī)能夠獲得與ML接收機(jī)相同的分集增益。

  • 圖  1  無(wú)線中繼網(wǎng)絡(luò)示意圖

    圖  2  快衰落瑞利信道上2中繼協(xié)作網(wǎng)絡(luò)的誤比特率性能

    圖  3  快衰落瑞利信道上3中繼協(xié)作網(wǎng)絡(luò)的誤比特率性能

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出版歷程
  • 收稿日期:  2018-04-13
  • 修回日期:  2018-09-21
  • 網(wǎng)絡(luò)出版日期:  2018-10-19
  • 刊出日期:  2019-01-01

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