Subnet fusion method for single-channel time division multiple access (TDMA) ad-hoc network

Abstract

The invention discloses a subnet fusion method for a single-channel time division multiple access (TDMA) ad-hoc network, and solves problems that subnets of a single-channel time division multiple access (TDMA) ad-hoc network in the prior art needs a control channel for communication and carry out the communication through a gateway node. The thinking of the invention is that the method comprises the steps: carrying out the dividing of an edge node group according to the geographic position information and the topological information of the subnets, and carrying out the dividing of a fusion time slot group, wherein the edge nodes select fusion time slots in the fusion time slot group, transmits fusion frames at the occupied fusion time slots, and judging whether to carry out the fusion with other subnets or not after receiving the fusion frames from other subnets; selecting the fusion subnets and then carrying out the node synchronization; selecting data time slots, and completing the fusion process of the subnets. Through the employing of different unoccupied time slot occupying methods and the dividing of the edge node group, the method can effectively reduce the energy consumption of a system, reduces the fusion time, and improves the stability of the fusion process.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a subnet fusion method of a single-channel time-division multiple access ad hoc network in the technical field of wireless communication. The present invention can be widely used in time division multiple access self-organizing network protocol, according to the topological structure of the whole network and geographic location information to carry out the node type division and the selection of the time slot allocation mode of the corresponding node, so that each divided subnet can be merged into one as soon as possible the same network. Background technique [0002] The MAC protocol, which controls the occupation of wireless channels by nodes and ensures the overall performance of the network, is the key technology of the mobile ad hoc network. By dividing the channel into time slots, the spatial multiplexing of the channel and the fairness of node access are improv...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this method is that since different subnets use different frequency hopping frequency sets, higher requirements are placed on the system RF baseband module, and the resulting increase in energy consumption will also affect system impact

However, the disadvantage of this method is that if the gateway node fails, the data exchange between the subnets will be greatly affected, and even the data exchange between the subnets will not be possible.

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