计算机工程

• 移动互联与通信技术 • 上一篇    下一篇

基于竞价机制的认知无线蜂窝网D2D功率分配方法

彭艺,董智超   

  1. (昆明理工大学 信息工程与自动化学院,昆明 650500)
  • 收稿日期:2016-04-13 出版日期:2017-05-15 发布日期:2017-05-15
  • 作者简介:彭艺(1975—),女,副教授、博士,主研方向为无线网络通信;董智超,硕士研究生。
  • 基金项目:
    云南省自然科学基金(KKS0201403016);云南省食品安全研究院项目(KKSTJ201303008)。

D2D Power Allocation Method for Cognitive Wireless Cellular Network Based on Bidding Mechanism

PENG Yi,DONG Zhichao   

  1. (Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Kunming 650500,China)
  • Received:2016-04-13 Online:2017-05-15 Published:2017-05-15

摘要: 针对用户资源利用率低的问题,为保障用户服务质量,采用竞价机制,面向无线蜂窝网络,将认知无线电(CR)技术与D2D技术结合,提出一种分布式D2D功率分配方法。该方法基于CR技术感知到可用频谱资源并对其进行标价,通过更改标价的方式达到新的纳什均衡,迭代优化之后使得存在的纳什均衡可以最大化地增加D2D对的获利,从而高效地使用可用频谱资源。实验结果表明,与传统蜂窝模型中的D2D通信相比,该方法能提高数据的传输效率以及通信系统中资源的利用率。

关键词: 无线蜂窝网, 认知无线电, 数据流, 竞价机制, 功率分配

Abstract: Aiming at the problem of low utilization rate of user resources and user Quality of Service(QoS) guaranteeing,this paper proposes a distributed D2D power allocation method by combining the Cognitive Radio(CR) technology and D2D technology for the wireless cellular networks.Based on the CR technology,the method can perceive the available spectrum resources and price it.Then,by changing the price to achieve the new Nash equilibrium,the iterative optimization makes the Nash equilibrium maximize the profit of the D2D pair,so as to effectively use the available spectrum resources.Experimental results show that compared with the traditional D2D communication model,the proposed method improves significantly in the data transmission efficiency and the utilization ratio of the resources in the communication system.

Key words: wireless cellular network, Cognitive Radio(CR), data stream, bidding mechanism, power allocation

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