对于去中心化认知无线电网络的合作环境中的决策分析
Cesar Hernandez1, Diego Giral1, Fredy Martínez1
1Technological Faculty, Universidad Distrital Francisco José de Caldas, Bogotá, D.C 11021, Colombia.
Heliyon
|February 23, 2024
概括
本研究介绍了去中心化认知无线电网络的合作决策模型,改善了频谱访问质量. 它通过使二级用户能够有效协作,以更好地选择频谱机会来增强用户体验.
科学领域:
- 无线通信无线通信
- 频谱管理 频谱管理
- 网络工程 网络工程
背景情况:
- 现有的认知无线电解决方案通常依赖于集中式网络,限制多用户和合作场景.
- 和频段降低了新用户的服务质量,需要动态频谱访问.
研究的目的:
- 建立一个合作决策模型,以在分散的认知无线电网络中选择最佳的频谱机会.
- 根据已建立的多标准决策算法 (SAW,TOPSIS,VIKOR) 评估拟议的模型.
主要方法:
- 开发了一个由四个模块组成的合作决策模型:协作,初级用户特征,二级用户到达概率和光谱机会反.
- 模拟使用实验频谱占用数据,评估各种协作级别 (10-100%),网络类型 (GSM,Wi-Fi),应用类型 (实时,最佳努力) 和流量级别 (高,低) 的性能.
主要成果:
- 合作模式在分散的认知无线电环境中表现出有效性.
- 在各种场景中分析了包括交付和吞吐量在内的绩效指标,突出了合作的好处.
结论:
- 拟议的合作决策模式为分散的认知无线电网络提供了一种新的方法.
- 这项研究使用实验数据和各种性能分析验证了该模型,解决了当前文献中的局限性.
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