基于网络编码的车载移动网络数据传输优化  

Network Coding Based Data Traffic Optimization in VANET

作　　者：李繁[1,2] 金明录[1] 

机构地区：[1]大连理工大学电子信息与电气工程学部,大连116024 [2]新疆财经大学网络与实验教学中心,乌鲁木齐830012

出　　处：《计算机科学》2013年第3期170-174,214,共6页Computer Science

摘　　要：车载网络系统已成为未来网络通信的重要发展趋势之一。通过车载网络系统,汽车与汽车间可以实时地分享行车信息,以避免车祸的发生,同时可以通过点对点信息分享的技术来传输数字多媒体信息。通过网络编码的方式来传递封包,针对汽车行进方向来分群组,并且通过结合ROMSGP的分组方法及改善VANETCODE的优先权设定策略来改善车载网络系统的整体性能。最后,通过仿真实验验证了该算法的有效性,并与原VANETCODE算法进行了性能对比。仿真结果表明:优化后的VANETCODE在性能上有了显著的改善。The Vehicular Ad-Hoc Network is one of the important trends of the future network communications. Through VANET, vehicles can not only share the traffic information to avoid accidents, but also exchange the multime dia content through the peer to peer sharing technology. This paper is based on network coding technology to encode/ decode the file blocks in VANET, clustering the vehicles according to their mobility, and combining the ROMSGP and modifying the priority method of the VANETCODE scheme in order to enhance the overall performance of VANETs. At last, we verified the effectiveness and correctness of this algorithm by simulation comparison of its performance with original algorithm. The simulation results show that the optimized VANETCODE has a significant improvement in the performance.

关 键 词：网络编码 ROMSGP VANET 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]