文章摘要
朱圣铭, 杨霄鹏, 肖楠, 刘东健, 徐志平.星地认知网络中基于图论的动态频谱划分算法[J].空军工程大学学报:自然科学版,2022,23(3):41-46
星地认知网络中基于图论的动态频谱划分算法
A Dynamic Spectrum Division Algorithm Based on Graph Theory in Terrestrial Satellite Cognitive Network
  
DOI:
中文关键词: 认知卫星通信  图论  频谱感知  频谱接入
英文关键词: cognitive satellite communications  graph theory  spectrum sensing  spectrum access
基金项目:国家自然科学基金(61871474)
作者单位
朱圣铭, 杨霄鹏, 肖楠, 刘东健, 徐志平 1.空军工程大学信息与导航学院西安710077 2.96862部队河南洛阳471000 
摘要点击次数: 31
全文下载次数: 19
中文摘要:
      在星地网络间的多授权用户卫星认知通信场景中,提出了一种基于图论的动态频谱划分过程。首先对图论模型进行介绍,其次分析了多授权用户(地面通信基站)条件下的卫星认知通信场景,根据认知用户(地面卫星用户)的感知范围并利用图论模型确定了其与授权用户间的感知矩阵,然后利用认知用户的吞吐量和授权用户的频谱空闲状态等通信参数,通过迭代的方式得到了最终的频谱接入矩阵,完成了多授权用户条件下的频谱划分。仿真结果表明:该算法可在认知用户的感知能力范围内,将认知用户划分到使其收益最大的授权用户频谱中。
英文摘要:
      A dynamic spectrum division process based on graph theory is proposed in the scenario of multi authorized user satellite cognitive communication between satellite and ground networks. First of all, the graph theory model is introduced. Secondly, this paper analyzes the cognitive authorized users under the condition of satellite communication scenarios. According to the cognitive users perceive, the paper makes use of the graph theory model with the authorized users perception of the matrix, and uses the throughput of the cognitive users and the authorized user of spectrum idle state parameters such as communication by iteration to get the final spectrum access matrix and completed many authorized users under the condition of spectrum. The simulation results show that the algorithm can divide cognitive users into the spectrum of authorized users with the highest revenue within the range of cognitive users perception ability.
查看全文   查看/发表评论  下载PDF阅读器
关闭