Research On Routing Protocol Of Multi-Parameter Mine Hybrid Wireless Mesh Network Based On Back Pressure

Wireless Mesh Network(WMN)is a new type of wireless bandwidth network.It is a new network structure based on multi-hop routing and peer-to-peer network technology.it can dynamically and continuously expand,self-management,automatic repair and self-balancing,It is characterized by rapid networking,cost-effective,and high scalability.The characteristics of these WMNs above reflect that WMN is well suited for network communications in complex areas of coal mines and in emergency relief scenarios.In recent years,WMN communication technology has begun to be applied to wireless communication in the field of coal mines,solving some problems that traditional wireless networks can not solve.This paper has the following two research contents.(1)Research on multi-parameter wireless mesh network routing protocol based on based on mine back pressure.When the next hop node is selected,the protocol selects the corresponding routing protocol according to the data type of the transmission.When transmitting the emergency data,it directly transmits the non-emergency data according to the next hop of the node.When it is necessary to consider the residual energy of the node,the more residual energy of the node,the more the probability that the node is selected.Therefore,combined with the factors of link quality and hop count,according to the difference of remaining energy of the node set thresholds,increase the probability that nodes with more residual energy are selected,and set corresponding penalties and incentives for them to achieve load balancing of the network.(2)Research on routing protocols of wireless mesh networks based on ant colony optimization.When making routing decisions in the mine,the path is selected according to the method of selecting the pheromone.The specific description is that the remaining energy of the next hop node and the remaining buffer capacity and the number of hops are comprehensively considered,according to the corresponding rules.According to the comprehensive calculation of these parameters,When the remaining energy of the selected node and the remaining buffer are lower than the set threshold,the data is not transmitted to the next hop node,and the network can select the remaining energy when selecting the next hop node to transmit data.A node with a large cache capacity and a small number of hops ensures that the network reaches aload balancing state,improves data transmission efficiency,and reduces network end-to-end delay.Based on the NS2 platform,this paper tests the proposed two improved wireless mesh network routing protocols and compares them with other related classic routing protocols.The results show that the two routing protocols proposed in this paper improve the network service quality and prolong the network lifetime.There are twenty-two figures,eleven tables and eighty-six references in this paper.