中文摘要：

针对传统车载机会网络通信能力的有限性及随机化的问题,提出一种通过部署路边单元（RSU）进行辅助通信来增强车载机会网络通信能力的方案.该方案利用RSU稳定的覆盖、存储和传输优势,有效克服传统车载机会网络通信时间间隔长、传输能力有限等缺点.以北京和上海各自一个月的出租车全球定位系统（GPS）数据为基础,对车辆与RSU的相遇特性进行了分析,发现该方案通过合理部署RSU对车辆信息进行缓存,可以极大地提高车辆间的通信概率.理论分析和仿真实验表明,利用RSU可以完成车与车之间大数据的传输,能极大提升车载机会网络的通信能力.

英文摘要：

In consideration of the problem that the communication capability of traditional vehiclar opportunistic networks is limited and random, a scheme for enhancing the communication capability of a vehicular opportunistic network by arranging road-side units （RSU） to achieve aided communications is proposed. The scheme can effectively overcome traditional vehicular opportunistic networks ＇ shortcomings of long inter-contact time （ICT） in communication and low transmission capacity by utilizing road-side units＇ advantages of stable coverage, storage and transmission. Based on the one mouth GPS data of taxicabs in Beijing and Shanghai, an analysis of the vehicle-RSU communication property was conducted by simulation, and it was found that the use of the proposed scheme, greatly improved the inter-vehicle communication probability because of the RSU-based cache vehicle information, thus the communication capability of vehicular oppotunistic networks was greatly enhanced.