| 频谱切换中基于频谱感知的链路保持概率 |
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| 引用本文： | 蒋金波,王可人,陈小波,金虎.频谱切换中基于频谱感知的链路保持概率[J].探测与控制学报,2011(6):57-61. |
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| 作者姓名： | 蒋金波 王可人 陈小波 金虎 |
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| 作者单位： | 解放军电子工程学院; |
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| 摘 要： | 为分析频谱感知对认知用户通信性能的影响,定量研究频谱切换中认知用户的相关参数,推导了频谱切换中基于频谱感知的链路保持概率及平均传输时间。得到认知用户在一次通信中能完成数据传输的概率和通信中的有效数据传输速率。仿真分析表明:在不同频谱环境下,基于频谱感知的频谱切换性能要比非频谱切换和基于频谱感知的信道预测方案的性能稳定,尤其是当授权用户到达率较高时更明显。此外,仿真数据表明:频谱感知中的错误信道选择概率和感知时间是影响频谱切换性能的两大重要因素。
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| 关 键 词： | 认知无线电网络 频谱切换 链路保持概率 |
Link Maintenance Probability of Spectrum Handoff Based on Spectrum Sensing |
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| JIANG Jinbo,WANG Keren,CHEN Xiaobo,JIN Hu.Link Maintenance Probability of Spectrum Handoff Based on Spectrum Sensing[J].Journal of Detection & Control,2011(6):57-61. |
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| Authors: | JIANG Jinbo WANG Keren CHEN Xiaobo JIN Hu |
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| Affiliation: | JIANG Jinbo,WANG Keren,CHEN Xiaobo,JIN Hu(Electronic Engineering Institute,Hefei 230037,China) |
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| Abstract: | To analyze the effect of the spectrum sensing on the communication performance of cognitive users,study the key facts in spectrum handoff,the link maintenance probability and average transfer time of cognitive users in spectrum handoff was researched.From the deduction,the data transmission probability which cognitive users could transmit all data in the communication and the effective data rate were obtained.Simulation results showed that,comparing this model with the non-spectrum handoff and the pre-deter... |
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| Keywords: | cognitive radio net spectrum handoff link maintenance probability |
| 本文献已被 CNKI 等数据库收录！ |
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