高移动无线通信网络的动态频谱分配方法研究  

Research on Dynamic Spectrum Allocation in High Mobile Wireless Communication Network

作　　者：陈荔[1] 申健[1] CHEN Li;SHEN Jian(Department of Information Network,Chang'an University,Shanxi Xi'an710064,China)

机构地区：[1]长安大学信息与网络管理处,陕西西安710064

出　　处：《计算机仿真》2020年第10期124-127,146,共5页Computer Simulation

摘　　要：针对传统方法只能对静态频谱进行分配,无法有效分配动态频谱的问题,提出新的高移动无线通信网络动态频谱分配方法。构建高移动无线通信网络模型,对动态频谱分配问题进行描述,以频谱效率最大化为目标建立线性优化方程,通过赢家判决与价格判决实现动态频谱分配方程求解,在赢家判决阶段,依据综合分析报价与干扰约束的贪婪准则,通过多重贪婪策略扩展搜索解空间;在价格判决阶段,将具有某一信道使用权的全部二级使用者看作虚拟竞价者,获取完整的价格向量。实验结果表明,研究方法能够有效分配动态频谱,有效吞吐量高,分配耗时短,应用效果更好。Traditionally, the method cannot allocate the dynamic spectrum effectively. Therefore, a dynamic allocation method for spectrum of high mobile wireless communication network was proposed. Firstly, a model of high mobile wireless communication network was constructed, and then the problem about dynamic spectrum allocation was described. Secondly, the linear optimization equation was established with the goal of maximizing spectrum efficiency. The dynamic spectrum allocation equation was solved by winner decision and price decision. In the stage of winner decision, according to the comprehensive analysis for greedy criteria of quotation and interference constraints, the space of search solution was expanded through multiple greedy strategies. In the stage of price decision, all secondary users with the right of using a certain channel were regarded as virtual bidders, so that complete price vectors were obtained. Simulation results show that the proposed method can effectively allocate dynamic spectrum, with high throughput and short allocation time, so its application effect is better.

关 键 词：高移动 无线通信网络 动态 频谱 分配 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]