Low Datum Delay High Mobility Self-Organizing Network Routing Technology

With the further development of network technology,research of Ad Hoc networks has received more and more attention and has been widely used.At the same time,the application scenarios of Ad Hoc networks tend to be diversified.Compared with many existing static or low-dynamic network environments the demand for applications of Ad Hoc networks in high mobility environments is also increasing.For example,civilian and commercial unmanned aerial vehicle networks,in-vehicle networks,and missile networking in military applications.With the speed of nodes is greatly improved compared to conventional static or low-dynamic Ad Hoc networks.The corresponding new algorithms is also proposed to adapt to the situation in which the network topology quickly changed caused by the rapid increase of the node's moving speed.And lead the communication failure causing the communication delay between the nodes to increase greatly.As an on-demand routing algorithm,AODV routing algorithm is a routing algorithm proposed for mobile Ad Hoc networks.However,as the node moving speed is further improved,the performance is difficult to meet the requirements of current needs.This paper improves on the basis of AODV routing algorithm,which makes it suitable for this kind of environment where nodes move at high speed,and then proposes LF-AODV routing algorithm.The AODV routing algorithm uses the Hello packet to acquire the link state between the nodes which causing the waste of network load.The LF-AODV routing algorithm proposes to obtain information from the MAC layer to the surrounding two-hop nodes through a cross-layer method,thereby no need for the Hello packet information.At the same time,the AODV routing algorithm is used to repair the route when the link is broken,which will have a great impact on the delay.So an improved AODV routing algorithm is proposed by using the SVR or gray prediction to predict the link state and repairing it in advance.At the same time,during the repair process,by using the two-hop information acquired in the MAC layer,the corresponding repair method is used,the network load caused by the repair is greatly reduced,and the delay of data transmission due to the repair is effectively avoided.For the poor environment of the link environment,the flood routing algorithm has better results because of its simple characteristics.This paper proposes a new routing algorithm based on flooding routing algorithm,namely P-Flooding routing algorithm.PFlooding is superior to LFAODV routing algorithm in high-speed environment under low load and fewer nodes.However,in the case of low node speed,it is not difficult to find that the PFlooding routing algorithm is much worse than LFAODV routing algorithm.So this paper through the increase of pattern recognition,through the application of SVM algorithm.Different routing algorithms are used under different network conditions,so a routing algorithm A-F routing algorithm based on changes in the environment is proposed.The results show that this algorithm is more applicable to the change of the moving speed than the two separate algorithms.