Network Coded File Sharing in Vehicular Ad-Hoc Networks

Mobile peer-to-peer (P2P) file sharing systems have been widely utilized in recent years. Currently, most file sharing systems in wireless networks are implemented through 3G telecommunication technology. However, the rapid growing number of users and the limited bandwidth in telecommunication systems cause the quality of communication prone to deteriorate. This paper develops a file sharing system in Vehicular Ad-Hoc Networks. To tackle the problem of frequent changes of network topologies, a novel routing protocol, namely Movement-Forecasted Packet Delivery (MFPD) is proposed. In addition, to solve packet delivery problem, a new P2P scheme, namely Network Coded File Sharing (NCFS) is developed. NCFS is designed based on MFPD and integrated with network coding to enhance file delivery efficiency. Results of simulations show that the developed system performs file sharing effectively in VANETs.