Research On Ad Hoc Network Congestion

Ad Hoc network is a multi-hop,centerless,self-organizing wireless network.Due to ease of deployment and other advantages are widely used in various fields.Wireless network bandwidth is low to the shortcomings and the use of competitive transmission medium to make the network prone to congestion.With the increasing amount of network data,wireless networks will be more prone to congestion,resulting in the decline in the quality of the entire network data transmission,and even the network paralyzed.Therefore,Ad Hoc network congestion problem research is very important.In this paper,the prediction model is studied,and the forecasting model is proposed to meet the characteristics of network traffic.The prediction model adopts AR linear prediction model and wavelet analysis.The wavelet data is decomposed and reconstructed by wavelet.After the data to predict,with the results of network data to predict the trend of changes in node load.In this paper,the AODV routing protocol is modified by the network traffic prediction model,and the C-AODV routing protocol is proposed.The C-AODV routing protocol embeds the prediction model into the node,predicts the MAC layer queue,and puts the prediction result into the C-AODV protocol.The C-AODV protocol has the advantages of early detection of high load in routing,routing and routing.Node function.In this paper,the C-AODV routing protocol is simulated and verified,and the CPDC routing protocol and AODV routing protocol are compared and analyzed?This paper proposes a Congestion-aware Routing Protocol(CAR)and its improved protocol.The congestion-aware routing protocol divides the network data into high-priority data and low-priority data.When the node generates high priority data,the node will automatically establish a high priority data transmission area,in the high priority data transmission area only transmit high priority data,in the high priority data transmission area generated low priority data will be routed High priority data transfer area,reducing network burden.In this paper,the CAR routing protocol is simulated and the feasibility and performance are analyzed.