Abstract: The Vehicular Ad-Hoc Network is one of the important trends of the future network communications. hhrough VANE T, 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 VANE?，clustering the vehicles according to their mobility, and combining the ROMSGP and modifying the priority method of the VANETC;ODE 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.

Key words: Network coding, ROMSGP, VANET