Research On Network Routing Technology Based On Data Link

The data link technology has been one of the core in the field of military information and has attracted a high attention from all countries.Data link is applied to the complex battlefield network with limited resources,and the network cost is big by traditional way,whic is not conducive to the transmission of tactical information.The Ad hoc network has the characteristics of fast self-organizing non-central network,which makes the data link networking technology based on Ad hoc network become one of the hotspots of military technology research.We first study the routing protocol of classical military mobile network and the routing protocol under Ad hoc network.The routing protocol of Ad hoc network can be divided into:table-driven routing protocol,on-demand routing protocol and hybrid routing protocol.Table-driven routing protocol has a large routing overhead and on-demand routing protocol has a large transmission delay,let's take into account the data link network application environment and it's real-time requirements,we can find that the two are not applicable in data link network.The hybrid routing protocol combines the advantages of two types,which is more suitable for data link network.So we chose the Zone Routing Protocol as the research object,and apply it to the data link network.Then,we study the implementation method of intra-domain and extra-domain routing protocols in ZRP under data link network,including the structure of routing messages,the process algorithm of routing request and reply.And we modelied the data link network on the OMNeT++ network simulation platform.We verified the effectiveness of the ZRP,and compared the ZRP and the classic military network routing protocol under different simulation conditions.The simulation results show that the routing overhead is less under the ZRP,and the performance of the establishment time,the average end-to-end delay and the packet delivery rate is better than the classic military network routing protocol under the dense and fast network.Finally,because the ZRP uses the preset domain radius that limit the network performance,the paper proposes a dynamic ZRP(D-ZRP)with adjustable domain radius based on the ZRP.The influence of node speed and density on the routing protocol is analyzed,and we chose the two parameters to design the domain radius adjuster.Then we compared and analyzed the performance of D-ZRP and ZRP.The simulation results show that the performance of network in sparse and slow networks is similar under the two routing protocols,but the performance under D-ZRP is better than that under ZRP in dense and fast networks.