现代电子技术2018，Vol.41Issue(1)：105-111,7.DOI:10.16652/j.issn.1004-373x.2018.01.024
车联网环境下的4G和DSRC异构网络切换机制研究
Research on heterogeneous network switching mechanism based on 4G and DSRC in IoVs environment
摘要
Abstract
According to the practical application requirements of Internet of Vehicles(IoVs),a scenario of heterogeneous network communication based on 4G and DSRC was constructed for freeway. Since the frequent vertical switching of the channel between different networks may cause the high transmission delay and packet loss rate in the constructed scenario,the network hop count,connection frequency and traveling trajectory are introduced as the switching decision factors on the basis of the re-search on the switching process of the freeway heterogeneous network based on 4G and DSRC,and a vertical switching algo-rithm of heterogeneous network is designed on the basis of TREBOL routing protocol.The comparison test and analysis were carried out for the switching performance of the heterogeneous network vertical switching algorithm with Veins simulation platform.The test results show that,in comparison with the heterogeneous network vertical switching algorithm based on RSSI,the switching algo-rithm can prolong the duration time of the network connection between the vehicle and DSRC,and effectively weaken the ping-pong effect.关键词
车联网/高速公路/异构网络/垂直切换/第四代移动通信技术/专用短程通信Key words
Internet of Vehicles/freeway/heterogeneous network/vertical switching/4G/DSRC分类
信息技术与安全科学引用本文复制引用
郑继亭,胡锦超,李珺..车联网环境下的4G和DSRC异构网络切换机制研究[J].现代电子技术,2018,41(1):105-111,7.基金项目
国家自然科学基金(51278058) （51278058）
陕西省自然科学基金(2012JM8011) （2012JM8011）
中央高校基本科研专项基金(2013G1241111,2014G1321035)Project Supported by National Natural Science Foundation of China(51278058),Natural Science Foundation of Shaanxi Province of China (2012JM8011),Fundamental Research Funds for the Central Universities(2013G1241111,2014G1321035). （2013G1241111,2014G1321035）
