扩展GloMoSim实现对认知无线电技术仿真的支持
首发时间:2009-05-28
摘要:本文研究了如何利用GloMoSim进行认知无线电技术仿真的问题。扩展GloMoSim的Radio层功能实现了对认知无线端口仿真的支持,1)使节点通过扫描各频带,结合电波传输损耗模型模拟感知信号功率,实现对频谱使用情况的感知;2) 动态调整GloMoSim中无线端口数据结构中的无线通信相关参数实现无线端口的频谱动态调整功能,然后通过伪代码介绍了仿真中上层功能模块对认知无线端口的频谱认知功能的访问方法。
关键词: 多无线端口 动态频谱 认知无线电 网络仿真 GloMoSim
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Adding Pass Loss Models for Wireless Transmission Simulation in GloMoSim
Abstract:The method of adding cognitive radio technology simulation supporting to GloMoSim with is analyzed. Radio layer modules of GloMoSim are enhanced to simulate different functions of cognitive radios, 1) frequency sensing ability is simulated by scanning all frequency bands and calculating sensed signal powers using simulations models related to wireless transmissions; 2) dynamic frequency utilizing ability is simulated by adjusting wireless parameters in data structures representing the radio interface. How upper layer modules access the cognitive radio abilities, or called services, in Radio layer is demonstrated in pseudo code examples.
Keywords: Multiple radio interfaces Dynamic frequency Network simulation Cognitive radio GloMoSim
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