## 3 An Opportunistic Routing for Data Forwarding Based on Vehicle Mobility Association
### The Algorithm Design of OVMA
We will analyze the impact of these network factors on the network performance to improve the vehicle network routing algorithm in the present paper. Figure 4:1 Routing overhead vs. data rate with different numbers of vehicles (50, 150, 250, 350, 450). **Acknowledgments:** This work is supported by the National Natural Science Foundation of China (Grant No. 71633006, Grant No. 61672540, Grant No. 61379057), China Postdoctoral Science Foundation funded project (Grant No. 2017M612586), and Postdoctoral Science Foundation of Central South University (Grant No. 185684). **Author Contributions:** [PERSON] and [PERSON] conceived and designed the experiments; [PERSON] performed the experiments; [PERSON] analyzed the data; [PERSON] contributed reagents/materials/analysis tools; [PERSON] wrote the paper. **Conflicts of Interest:** The authors declare no conflict of interest. ## Abbreviations

The following abbreviations are used in this manuscript: \begin{tabular}{l l} DSRC & Dedicated short range communication \\ WAVE & Wireless access in a vehicular environment \\ GPRS & General Packet Radio Service \\ EDGE & Enhanced Data Rate for GSM Evolution \\ LTE & Long Term Evolution \\ NEMO & Network mobility \\ VADD & Vehicle-Assisted Data Delivery \\ MDDV & Mobility-centric data dissemination algorithm for vehicular networks \\ DSDV & Destination-Sequenced Distance-Vector Routing \\ AODV & Ad hoc On-demand Distance Vector Routing \\ OLSR & Optimized Link State Routing \\ DSR & Dynamic Source Routing \\ MAODV & Multicast ad hoc condemand vetor \\ MAV-AODV & Multicast with ant colony optimization for VANETs based on MAODV protocol \\ M-AODV+ & An extension of AODV+ routing protocol for supporting vehicle-to-vehicle communication \\ MAODV & Multicast ad hoc on-demand distance vector protocol \\ MAR-DYMO & Mobility-aware Ant Colony Optimization Routing DYMO \\ DCMP & Distributed Cycle Minimization Protocol \\ GPSR & Greedy perimeter stateless routing \\ D-ODMRO & destination driven on demand multicast routing protocol \\ CBR & Constant bitrate \\ GPS & Global Positioning System \\ EM & Exchange information \\ HM & Response information \\ \end{tabular} 

## References

* [PERSON] and [PERSON] (2017) [PERSON]; [PERSON] Human Activity Optimal Cooperation Objects Selection Routing Scheme in Opportunistic Networks Communication. _Wirel. Person. Commun._**2017**, _95_, 3357-3375. * [PERSON] (2014) [PERSON] How to Build Vehicular Networks in the Real World. In Proceedings of the ACM International Symposium on Mobile Ad Hoc Networking and Computing, Philadelphia, PA, USA, 11-14 August 2014; pp. 123-124. * [PERSON] et al. (2014) [PERSON]; [PERSON]; [PERSON] Vehicular communication ad hoc routing protocols: A survey. _J. Netw. Comput. Appl._**2014**, _40_, 363-396. * [PERSON] et al. (2014) [PERSON]; [PERSON]; [PERSON] [PERSON] A systematic review on routing protocols for Vehicular Ad Hoc Networks. _Vel. Commun._**2014**, \(1\), 33-52. * [PERSON] et al. (2015) [PERSON], [PERSON], [PERSON], [PERSON] Physical Layer and Medium Access Control Design in Energy Efficient Sensor Networks: An Overview. _IEEE Trans. Ind. Inf._**2015**, _11_, 2-15. * [PERSON] et al. (2015) [PERSON]; [PERSON]; [PERSON]. A Multiband Slot Antenna for GPS/WiMAX/WLAN Systems. _IEEE Trans. Antennas Propag._**2015**, _63_, 952-958. * [PERSON] et al. (2011) [PERSON]; [PERSON]; [PERSON] A Novel Multi-Hop Clustering Scheme for Vehicular Ad-Hoc Networks. In Proceedings of the Mobiwac'11 ACM International Workshop on Mobility Management and Wireless Access, Miami, FL, USA, 31 October-4 November 2011; pp. 19-26. * [PERSON] and [PERSON] (2006) [PERSON]; [PERSON] VADD: Vehicle-Assisted Data Delivery in Vehicular Ad Hoc, Networks. _IEEE Trans. Veh. Technol._**2006**, 57, 1910-1922. * [PERSON] et al. (2016) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Performance Optimisation for DSDV in VANETs. In Proceedings of the Uksim-Amss International Conference on Modelling and Simulation, Cambridge, UK, 25-27 March 2016. * [PERSON] et al.