| 基于分布式天线的认知无线电系统感知算法和信道容量分析 |
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| 引用本文： | 李晓鹏,徐任晖,钱志荣.基于分布式天线的认知无线电系统感知算法和信道容量分析[J].军事通信技术,2008(2). |
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| 作者姓名： | 李晓鹏 徐任晖 钱志荣 |
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| 作者单位： | 解放军理工大学通信工程学院训练部;炮兵学院南京分院基础部; |
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| 摘 要： | 认知无线电概念的提出为频谱的共享提供了可能。文中提出一种基于分布式天线的认知无线电系统实现方法,该方法便于频谱的感知,能降低对首要用户的干扰,并且相对于中心式天线能为次要认知无线电用户的下行链路提供较大的信道容量增益。
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| 关 键 词： | 认知无线电 首要用户 次要用户 分布式天线系统 |
Sensing Algorithm and Channel Capacity Analysis of Distributed-antenna-based Cognitive Radio System |
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| LI Xiao-peng,XU Ren-hui,QIAN Zhi-rong.Sensing Algorithm and Channel Capacity Analysis of Distributed-antenna-based Cognitive Radio System[J].Journal of Military Communications Technology,2008(2). |
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| Authors: | LI Xiao-peng XU Ren-hui QIAN Zhi-rong |
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| Institution: | LI Xiao-peng1,XU Ren-hui1,QIAN Zhi-rong2(1.Training , Academics Department ICE,PLAUST,Nanjing 210007,China,2.Department of Fundamental Courses,Nanjing Artillery Academy,Nanjing 211132,China) |
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| Abstract: | Cognitive radio provides the chance for spectrum sharing.A cognitive radio system based on distributed antennas was presented.This scheme is fit for the spectrum sensing and can reduce the interference to the primary users.Compared with the central-antenna-based system,distributed antennas have the higher downlink channel capacity for cognitive radio users. |
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| Keywords: | cognitive radio primary user secondary user distributed antenna systems |
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