计算机应用 ›› 2015, Vol. 35 ›› Issue (9): 2415-2418.DOI: 10.11772/j.issn.1001-9081.2015.09.2415

• 网络与通讯 •    下一篇

基于频谱合约的协作通信中继选择方法

赵楠, 武明虎, 熊炜, 刘聪   

  1. 湖北工业大学 太阳能高效利用湖北省协同创新中心, 武汉 430068
  • 收稿日期:2015-04-20 修回日期:2015-05-24 出版日期:2015-09-10 发布日期:2015-09-17
  • 通讯作者: 赵楠(1983-),女,河南漯河人,讲师,博士,主要研究方向:认知无线电,nzhao@mail.hbut.edu.cn
  • 作者简介:武明虎(1975-),男,湖北恩施人,副教授,博士,主要研究方向:通信信号处理;熊炜(1976-),男,湖北宜昌人,讲师,博士,主要研究方向:无线网络;刘聪(1982-),男,湖北武汉人,讲师,博士,主要研究方向:通信信号处理。
  • 基金资助:
    国家自然科学基金资助项目(61501178,61471162);湖北省自然科学基金青年资助项目(2015CFB646);太阳能高效利用湖北省协同创新中心开放基金项目(HBSKFMS2014033);湖北工业大学博士科研启动基金资助项目(BSQD13029)。

Contract design for relay selection in cooperative communication

ZHAO Nan, WU Minghu, XIONG Wei, LIU Cong   

  1. Hubei Collaborative Innovation Center for High-efficient Utilization of Solar Energy, Hubei University of Technology, Wuhan Hubei 430068, China
  • Received:2015-04-20 Revised:2015-05-24 Online:2015-09-10 Published:2015-09-17

摘要: 针对认知无线网络中协作通信中继节点自私性的需求和非对称网络信息的特点,提出一种多用户协作通信合约机制的设计与实现方法。首先,通过将协作通信映射成劳动力市场,研究对称网络信息条件下多用户频谱合约建模方法;在此基础上,针对合约签订前中继节点私有信息隐匿性引起的逆向选择问题,研究非对称网络信息条件下频谱合约建模方法,以激励中继节点真实地反馈其类型信息和保证协作通信的实现。实验结果表明,雇主授权用户(PU)雇用信道状态好、协作成本低的非授权用户(SU),能获得较大的协作通信增益。提出的多用户协作通信合约机制能为无线频谱的高效利用提供新思路。

关键词: 认知无线网络, 协作通信, 合约设计, 非对称网络信息, 逆向选择

Abstract: Focusing on the characteristics of selfishness of relay users and asymmetric network information in cognitive radio networks, a multi-user cooperative communication mechanism was proposed. Firstly, by modeling the cooperative communication as a labor market, a modeling method for the multi-user contract-based relay selection framework was investigated under the symmetric network information scenario. Then, to avoid the adverse selection problem due to the hidden-information of Secondary User (SU) before contract assignment, a contract-based relay selection model was proposed to incentivize the contribution of secondary users for ensuring cooperative communication. The experimental results show that, by hiring the secondary users with better channel condition or less relay cost, Primary User (PU) can obtain much more cooperative communication utility. The proposed multi-user contract-based cooperative communication framework can put forward new ideas for efficient utilization of spectrum resource.

Key words: cognitive radio network, cooperative communication, contract design, asymmetry information, adverse selection

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