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计算机工程

• 安全技术 • 上一篇    下一篇

基于信任度的自私用户协作激励机制

王文1,黄开枝1,马林2   

  1. (1.国家数字交换系统工程技术研究中心,郑州 450002; 2.中国科学院上海微系统与信息技术研究所,上海 200050)
  • 收稿日期:2015-10-23 出版日期:2016-11-15 发布日期:2016-11-15
  • 作者简介:王文(1990—),女,硕士,主研方向为移动通信物理层安全技术;黄开枝,教授、博士后;马林,助理研究员、博士。
  • 基金资助:
    国家“863”计划项目“未来无线接入物理层与系统安全通信技术研究”(2015AA01A708);国家自然科学基金“基于博弈的物理层安全组网研究”(61379006)。

Cooperation Incentive Mechanism for Selfish Users Based on Trust Degree

WANG Wen  1,HUANG Kaizhi  1,MA Lin  2   

  1. (1.China National Digital Switching System Engineering and Technological R&D Center,Zhengzhou 450002,China; 2.Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China)
  • Received:2015-10-23 Online:2016-11-15 Published:2016-11-15

摘要: 在多用户网络中,自私用户为节省自身能量和计算资源而拒绝为其他用户提供协作。针对这种消极行为,基于用户间信任度评价提出协作激励机制。中继通过与通信用户比较信任值来决定是否参与协作,自私用户信任值越低,其需要其他节点协作时遭到拒绝的概率越大,而积极参与协作的用户信任值越高,其获得其他节点协作的概率越大。通过信任值高低来激励用户积极参与协作提升自身信任度,以获取更多中继为已所用。仿真结果证明了所提方案的有效性,在信任度的激励下,自私用户积极参与协作提升自身的信任值,通信质量与无私中继协作转发相当。

关键词: 多用户网络, 自私用户, 信任度, 信道容量, 中继协作, 协作激励

Abstract: In the multi-user network,selfish users refuse to provide other users with cooperation for saving their own energy and computing resources.In order to encourage selfish users to offer their resources,a cooperation incentive mechanism based on users trust degree evaluation is proposed.Relays decide whether to participate in the cooperation or not by comparing the trust value of communication users.The lower trust value of the selfish users,the more likely they will be rejected when they need cooperation.While the higher trust value of users,the more likely they will get cooperation.Simulation results demonstrate the effectiveness of the proposed scheme.The selfish users actively participate in the cooperation to increase their own trust value,and the communication quality is close to that of the cooperation with selfless relays.

Key words: multi-user network, selfish users, trust degree, channel capacity, relay cooperation, cooperation incentive

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