通信学报 ›› 2016, Vol. 37 ›› Issue (9): 102-110.doi: 10.11959/j.issn.1000-436x.2016182

• 学术论文 • 上一篇    下一篇

基于效用的机会网络“物—物交换”激励机制

姚建盛1,2,马春光1,袁琪1   

  1. 1 哈尔滨工程大学计算机科学与技术学院,黑龙江 哈尔滨 150001
    2 吉林师范大学计算机学院,吉林 四平 136000
  • 出版日期:2016-09-25 发布日期:2016-09-28
  • 基金资助:
    国家自然科学基金资助项目;高等学校博士学科点专项科研基金资助项目(博导类)(

Utility-based barter trade incentive scheme in opportunistic network

Jian-sheng YAO1,2,Chun-guang MA1,Qi YUAN1   

  1. 1 College of Computer Science and Technology,Harbin Engineering University,Harbin 150001,China
    2 College of Computer Science,Jilin Normal University,Siping 136000,China
  • Online:2016-09-25 Published:2016-09-28
  • Supported by:
    The National Natural Science Foundation of China;Education Ministry Doctoral Research Foundation of China

摘要:

针对机会网络环境下简单“物—物交换”(SBT,simple barter trade)激励机制因盲目缓存而降低网络性能的问题,设计一种基于效用的“物—物交换”(UBT,utility-based barter trade)激励机制。UBT通过预测未来相遇节点和相遇节点转发消息到目的节点的概率进行缓存决策从而提高了缓存效率和网络性能。仿真实验证明,和SBT相比,UBT在有效激励节点协作的同时能用更少的网络负载获得更高的投递率和更低的时延。

关键词: 机会网络, 自私, “物—物交换”激励机制, 效用

Abstract:

In opportunistic networks,existing simple barter trade (SBT) incentive scheme degraded the network performance due to the blindly caching strategy.So a utility-based barter trade (UBT) incentive mechanism was proposed.In the UBT scheme,nodes cache messages by predicting their future encounters and the probability that the encounters forward these messages to their destinations,which improved the caching efficiency and the network performance.Simulated results show that,compared with SBT,UBT can obtain higher delivery ratio and lower delay by less network cost and effectively motivate nodes’ cooperation as well.

Key words: opportunistic networks, selfishness, barter trade incentive mechanisms, utility