摘要
针对移动机会网络中转发节点选择和数据包管理不合理问题,提出基于转发效用和拥塞感知的机会网络路由算法.建立转发效用模型,根据移动机会网络的机会接触特性定义节点接触概率和节点接触活跃度;建立节点拥塞感知模型,定义节点区域拥塞系数;将转发效用和节点区域拥塞系数用于数据包转发过程和数据包管理过程,提出节点接触概率的转发节点选择策略和节点接触活跃度的转发节点选择策略.仿真结果表明,基于转发效用和拥塞感知的机会网络路由算法在数据包投递率、转发代价和平均投递时延方面的综合表现相比对比算法更为优秀,可用于车载通信网络、水下传感网络、动物野外追踪等方面的数据传输.
Aiming at the unreasonable problem of forwarding node selection and data packet management in mobile opportunistic networks, a routing algorithm based on forwarding utility and congestion awareness in opportunistic network was proposed. A forwarding utility learning model was established, and node contact probability and node contact activity were defined according to the opportunity contact characteristics of the mobile opportunity networks. A node congestion awareness model was established and area congestion coefficient of the node was defined. Forwarding utility and node area congestion coefficient were used in the data packet forwarding process and the data packet management process, and forwarding node selection strategy based on node contact probability and forwarding node selection strategy based on node contact activity were proposed. The simulation results showed that the comprehensive performance of the proposed algorithm in terms of packet delivery rate, forwarding cost and average delivery delay was better than the comparison algorithms. The proposed algorithm could be used in vehicle communication networks, data transmission for underwater sensor networks and animal tracking in the wild.
作者
王希波
王桐
WANG Xi-bo;WANG Tong(College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China)
出处
《哈尔滨商业大学学报（自然科学版）》
CAS
2022年第1期22-29,共8页
Journal of Harbin University of Commerce：Natural Sciences Edition
基金
国家自然科学基金项目(51779050,61102105)
国家重点研发计划(2016YFB0700100)
哈尔滨市人才项目(2017RAQXJ036)。
关键词
移动机会网络
路由算法
拥塞感知
接触概率
缓存管理
数据传输
mobile opportunistic networks
routing algorithm
congestion awareness
contact probability
cache management
data transmission
