基于消息优先级的OppIoV拥塞控制策略  

OppIoV Congestion Control Strategy Based on Message Priority

作　　者：张龙[1] 曹文静[1] 于永利[2] 

机构地区：[1]河北工程大学信息与电气工程学院,河北邯郸056038 [2]北方联合电力有限责任公司,内蒙古呼和浩特010020

出　　处：《微电子学与计算机》2015年第1期11-14,18,共5页Microelectronics & Computer

基　　金：河北省自然科学基金(F2013402039);河北省高等学校科学技术研究项目(QN20131048)

摘　　要：针对机会车联网的网络拥塞问题,提出了一种基于所传输消息优先级的车辆节点拥塞控制策略.当车辆节点存储空间不足而又需要存储新的消息时,该车辆节点内的所有消息按照其优先级由高到低排列,丢弃优先级最低的消息,直至有存储空间来接收新的消息.通过大量的仿真实验与传统的丢弃策略对比,该拥塞控制策略能显著提高消息的递交率,减小开销,并对网络拥塞状况有更好的自适应能力.For network congestion of Opportunistic Internet of Vehicle,a congestion control strategy of vehicle nodes based on the priority of the message transmission is proposed.When the storage space of vehicle nodes is insufficient and need to store the new messages,all messages within the vehicle nodes according to their priority from high to low arrangement,dropped the lowest priority message,until there is storage space to receive a new message.Through a lot of simulation experiments and compared with traditional discarded strategies.The congestion control strategy can significantly increase the messages submitted rate,reduce overhead,and has better adaptive ability of network congestion situation.

关 键 词：机会车联网 拥塞控制 优先级 递交率 开销 

分 类 号：TP393.06[自动化与计算机技术—计算机应用技术]