LoRa node distribution model construction method, node distribution method and device

• Main Authors: WANG CONG, GU BO, LI TINGFENG, LU BOXUAN, TAN ZHENCHAO, TAN JINGJUN
• Format: Patent
• Language: Chinese; English
• Published: 15.07.2022
• Subjects: ALARM SYSTEMS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ORDER TELEGRAPHS; PHYSICS; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; WIRELESS COMMUNICATIONS NETWORKS

The invention discloses a LoRa node distribution model construction method and a node distribution method and device, and the method comprises the steps: carrying out the initialization configuration of a LoRa physical layer, and determining the calculation mode of each data size in a model; according to the characteristics of the random access network, taking data generated by the nodes as Poisson distribution, and determining a first mathematical model of a transmission success rate according to the Poisson distribution and a calculation mode of each data volume; constructing a second mathematical model that the output receiving power is influenced by the transmitting power and the path loss of the signal; determining an objective function in a third mathematical model according to the first mathematical model and the second mathematical model; solving a third mathematical model through a nonlinear programming method according to the target function and the spreading factor; and finally, according to the th