通信学报Issue(7)：34-41,8.DOI:10.3969/j.issn.1000-436x.2013.07.004
车联网中基于贝叶斯决策的垂直切换方法研究
IoV vertical handoff research based on Bayesian decision
摘要
Abstract
Vehicles need vertical handoffs in the heterogeneous wireless network environment of IoV, but current vertical switching technologies generally cannot support vertical handoff among WAVE, WiMAX and 3G cellular. In order to overcome this problem, a vertical handoff method with Bayesian decision was proposed. Firstly, according to the signal strength, transmission rate, bit error rate, blocking probability, vehicle speed and movement trend, the handoff probability distribution of Multi-condition was established and the handoff prior probability was calculated. Secondly, Bayesian de-cision method was used to obtain the handoff posterior probability and to classify decisions, which made vehicles access the best network. Simulation results show that the proposed method can not only achieve the vertical handoff among WAVE, WiMAX and 3G cellular, but also avoid the ping-pong effect and ensure the network update rate.关键词
车联网/无线异构网/贝叶斯决策/垂直切换Key words
Internet of vehicles/heterogeneous wireless networks/Bayesian decision/vertical handoff分类
信息技术与安全科学引用本文复制引用
范存群,王尚广,孙其博,邹华,杨放春..车联网中基于贝叶斯决策的垂直切换方法研究[J].通信学报,2013,(7):34-41,8.基金项目
教育部新世纪优秀人才支持计划基金资助项目(NCET100263)；教育部博士点基金资助项目(20110005130001) （NCET100263）
国家高技术研究发展计划(“863”计划)基金资助项目(2011AA01A102)；国家重点基础研究发展计划(“973”计划)基金资助项目(2009CB320406)；中国博士后科学基金资助项目(2011M500226)；国家自然科学基金资助项目(61272521)Foundation Items：New Century Talent Supporting Project of Education Ministry (NCET100263) （“863”计划）
Ph D Programs Foundation of Ministry of Education (20110005130001) （20110005130001）
The National High Technology Research and Development Program of China (863 Pro-gram)(2011AA01A102) （863 Pro-gram）
The National Basic Research Program of China (973 Program)(2009CB320406) （973 Program）
China Postdoctoral Sci-ence Foundation (2011M500226) （2011M500226）
The National Natural Science Foundation of China (61272521) （61272521）
