VANET中数据传递的关键技术  

Key Technologies of Data Delivery over VANETs

作　　者：张利锋[1,2] 金蓓弘[1] 张扶桑[1,2] 

机构地区：[1]中国科学院软件研究所,北京100190 [2]中国科学院大学,北京100190

出　　处：《计算机科学》2013年第8期1-5,13,共6页Computer Science

基　　金：自然科学基金(60970027;91124001)资助

摘　　要：基于VANET的数据传递能为交通信息收集、城市生活服务、紧急告警、军事指挥等应用提供数据传输服务,但VANET数据传递面临诸多挑战,例如网络拓扑变化快、信道容量有限等。从VANET数据传递的关键挑战入手,指出了影响VANET数据传递的主要因素,对VANET数据传递的基本机制进行了分类,综述并分析了已有的实现方法。此外,还列举了提高数据传递能力的优化策略。最后对未来的研究趋势进行了展望。Data delivery over VANETs can provide data transmission for various services including traffic information collecting, urban life services, emergency alarming, and military command. But there are many challenges in data delivery brought by the rapid changing of network topology, limited wireless channel capacity, and etc. The paper analyzed the key challenges, pointed out the main influencing factors, classified the essential mechanisms, and reviewed the existing implementation approaches of data delivery over VANETs. In addition, the paper also summarized the optimization strategies to improve capabilities of data delivery. The paper concluded the future research trends.

关 键 词：数据传递 VANET 实现方法 性能优化 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]