Congestion Control Method for Data Transmission in Wireless Sensor Networks Based on Traffic Delay Scheduling
In wireless sensor networks,traffic control is difficult and there is node congestion during data transmission.Therefore,a new transmission congestion control method based on traffic delay scheduling is proposed.The traffic delay scheduling is introduced to deter-mine the data flow,the data flow is filtered,and the delay threshold is set.The system determines whether the data need to be re-trans-mitted and the design of the data transmission control mechanism is completed by comparing the traffic with the delay threshold.The da-ta spanning tree is used to obtain network effective data packets,the probability threshold of data packets that can be transmitted by the channel is calculated,a data transmission congestion control model is built,and data transmission congestion control is achieved in the wireless sensor network.The simulation analysis shows that the energy consumption of congestion control of the proposed method is only 149 J,which improves the data transmission rate to more than 80 Mbit/s,and the data integrity to more than 99.0％.The proposed method effectively improves the data transmission rate and integrity,and energy consumption is reduced.The proposed method is feasible and it can effectively control data transmission congestion.
wireless sensor networkcongestion controltraffic delay schedulingdata transmissionflow matchingspanning tree
万方数据
维普
