通信学报 ›› 2019, Vol. 40 ›› Issue (9): 124-135.doi: 10.11959/j.issn.1000-436x.2019189

• 学术论文 • 上一篇    下一篇

认知异构无线网络中传输速率最大化的频谱资源分配方法

董晓庆1,2,程良伦2,郑耿忠1,王涛3   

  1. 1 韩山师范学院物理与电子工程学院,广东 潮州 521041
    2 广东工业大学计算机学院,广东 广州 510006
    3 广东工业大学自动化学院,广东 广州 510006
  • 修回日期:2019-06-21 出版日期:2019-09-25 发布日期:2019-09-28
  • 作者简介:董晓庆(1982- ),男,广东潮州人,韩山师范学院副教授、硕士生导师,主要研究方向为无线通信、自动控制。|程良伦(1964- ),男,湖北黄石人,博士,广东工业大学教授、博士生导师,主要研究方向为物联网、自动控制。|郑耿忠(1975- ),男,广东潮州人,博士,韩山师范学院教授、硕士生导师,主要研究方式为物联网、复杂网络优化。|王涛(1983- ),男,湖北石首人,博士,广东工业大学副教授、硕士生导师,主要研究方向为物联网、工业机器人。
  • 基金资助:
    广东省科技计划基金资助项目(2016A020209012);广东省科技计划基金资助项目(2017B090901019);广东省科技计划基金资助项目(2015A010103015);广东省自然科学基金资助项目(2014A030307014)

Spectrum resource allocation method of maximizing transmission rate in cognitive heterogeneous wireless networks

Xiaoqing DONG1,2,Lianglun CHENG2,Gengzhong ZHENG1,Tao WANG3   

  1. 1 School of Physics and Electronic Engineering,Hanshan Normal University,Chaozhou 521041,China
    2 School of Computer,Guangdong University of Technology,Guanzhou 510006,China
    3 School of Automation,Guangdong University of Technology,Guanzhou 510006,China
  • Revised:2019-06-21 Online:2019-09-25 Published:2019-09-28
  • Supported by:
    Science and Technology Project of Guangdong Province(2016A020209012);Science and Technology Project of Guangdong Province(2017B090901019);Science and Technology Project of Guangdong Province(2015A010103015);The Natural Science Foundation of Guangdong Province(2014A030307014)

摘要:

针对频谱属性异构、信道条件动态变化、业务需求多样的认知异构无线网络中难以为次用户高效分配频谱资源的问题,提出了传输速率最大化的频谱资源分配策略。该策略首先以总传输速率最大化为目标,以受限频谱资源及用户业务需求为约束条件,构建了非线性多约束的频谱资源分配0-1规划模型;然后设计了一种多项式时间复杂度的化简求解方法,该方法根据空闲频谱信息、信道条件、业务需求及分配决策历史信息构建并修正效益矩阵,实现约束条件化简,并通过改进传统匈牙利算法的系数矩阵变换策略提高执行效率。最后,通过实验对算法性能进行对比分析,实验结果显示,所提方法具有更高的传输速率及执行效率。

关键词: 认知异构无线网络, 认知无线电, 动态频谱分配, 传输速率最大化

Abstract:

Aiming at the problem that it is difficult to allocate spectrum resources to secondary users efficiently in cognitive heterogeneous wireless networks with heterogeneous spectrum attributes,dynamic channel conditions and diverse service requirements,a spectrum resource allocation strategy with maximum transmission rate was proposed.Firstly,the strategy aimed at maximizing the total transmission rate,and constrained the limited spectrum resources and user service requirements to construct a non-linear multi-constrained spectrum resource allocation 0-1 planning model.Then a polynomial time complexity simplification method was designed.According to idle spectrum information,channel conditions,business requirements and allocation decision history information,and the benefit matrix was constructed and modified to achieve constraint simplification,and the execution efficiency was improved by improving the coefficient matrix transformation strategy of the traditional Hungarian algorithm.Finally,the performance of the method was compared and analyzed by experiments.Experimental results show that the proposed method has higher transmission rate and execution efficiency.

Key words: cognitive heterogeneous wireless network, cognitive radio, dynamic spectrum allocation

中图分类号: 

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