中断最小化I2RV候选中继DTN拥塞控制协议

发布时间：2018-05-03 04:18

  本文选题：DTN网络 + 通信中断　； 参考：《计算机工程与设计》2017年04期

【摘要】：车辆时延容忍网络在实际应用中存在较严重的数据丢失及延迟过高的问题,对此提出一种中断最小化I2RV候选中继DTN拥塞控制协议。提出一个中断最小化I2RV中继方案,减少信号未覆盖区域存在的相距较远邻近单元间的通信中断(RSUs)问题,在该方案中为目标车辆设置两个延迟,一个延迟设置在车辆离开信号覆盖区域时,另一个设置在车辆进入下一个通信中断时;建立中继车辆最小中继成本及中断时间选择方式,建立目标车辆速度优化协调机制。与现有的采用内点算法单中继选择方案进行实验对比分析,分析结果表明,中断最小化I2RV中继方案能够比单中继方案更好地减少数据丢失及延迟过高问题,可有效降低因通信中断导致的车辆拥挤问题。
[Abstract]:There are serious problems of data loss and high delay in vehicle delay tolerant networks. A congestion control protocol for I2RV candidate relay DTN is proposed. In this paper, an interrupt minimization I2RV relay scheme is proposed to reduce the communication interruptions between the distant adjacent units in the uncovered area of the signal. In this scheme, two delays are set for the target vehicle. One delay is set up when the vehicle leaves the signal coverage area, the other is set up when the vehicle enters the next communication interrupt, and the minimum relay cost and interrupt time selection mode of the relay vehicle are established, and the optimization and coordination mechanism of the target vehicle speed is established. The experimental results show that the interrupt minimization I2RV relay scheme can reduce the data loss and high delay better than the single relay scheme. It can effectively reduce the problem of traffic congestion caused by the interruption of communication.
【作者单位】： 广东农工商职业技术学院计算机系;华南理工大学软件学院;
【分类号】：U495;TP393.04
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本文编号：1836936