Research And Design Of Mine Locomotive Scheduling Scheme Based On Successive Interference Cancellation

The mineral industry is a pillar industry that links the economic lifelines of countries around the world and is also a high-risk industry.The main method of underground transportation is to use the mine track locomotive for transportation.However,due to the complexity and danger of the underground environment,transportation accidents occur frequently.To improve the safety and reliability of underground transportation,it is necessary to be able to acquire and process the interactive information of underground locomotives in real time.The characteristics of downhole mobility of the locomotive make it necessary to communicate with the trackside access point through the wireless network.In recent years,interference management,as a new means of improving the performance of wireless networks,is getting more and more attention.Interference management effectively manages and optimizes interfering signals through some technologies so that the information no longer interferes with each other,which greatly improves the throughput of the wireless network.The movement of the underground locomotive has a certain regularity.The locomotive's work can be scheduled and its communication transmission power can be controlled.Existing studies based on interference management do not consider these characteristics.Therefore,a suitable downhole-based interference management wireless network communication model can be established and related optimization solutions can be jointly designed.This dissertation studies and designs a mine locomotive scheduling scheme based on disturbance management.The details are as follows:(1)A single-track straight-track network of traditional locomotives is modeled,and then a time-sharing network model based on interference management is re-established based on successive interference cancellation techniques.Then the concepts of SIC sets and maximum SIC sets are proposed,and a constant-power maximum SIC is designed.And get an optimal time slice partitioning scheme and then solve the above model.(2)The underground locomotive is modeled on a two-track straight road network.Since the power control is used,the transmission power of the locomotive can be adjusted freely.The optimal transmit power of the locomotive is determined based on the SIC principle.Then the time slice allocation scheme is obtained by designing the largest SIC set algorithm based on dynamic power scheduling,and then the model is solved.(3)Using MATLAB and Lindo for simulation,the feasibility of the method in this thesis is determined by comparing the average improvement rate of different locomotives and different network instances with the traditional method.Simulation results show that the improvement rate is 15%to 50%.