Routing method for multi-source path interference optimization based on multi-event triggering

Abstract

The invention relates to a routing method for multi-source path interference optimization based on multi-event triggering. The routing method comprises the following steps: network initializing ; a clustering strategy based on multi-event triggering; candidate relay selection based on an interference avoidance mechanism; relay election based on interference sensitivity; and power control and data multi-hop transmission. According to the invention, by introducing the node state and the interference sensitivity, it is ensured that transmission links of different events are completely not intersected, the interference degree between the links is small, the problem of interference conflicts in multi-path parallel data transmission is effectively solved, and the transmission efficiency of the network is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a routing method based on multi-source path interference optimization triggered by multi-events. Background technique [0002] With the continuous improvement of communication technology, the development scale of wireless sensor network is getting bigger and bigger. Large-scale sensor nodes are densely deployed in the monitoring area to monitor the environment in real time or track target tasks, respond to sensitive events in the environment, and Take corresponding countermeasures. In a large-scale wireless sensor network, using all nodes to continuously monitor in real time has a large demand for network energy consumption, which is likely to cause a large amount of unnecessary energy loss. Therefore, event-driven networks are widely used instead of time-driven networks. It is used in many fields such as forest fire prevention and medical application. [0003] In the ev...

AI Technical Summary

Problems solved by technology

However, at a certain moment, not all nodes in the interference area of ​​the current node will interfere with this node, only those nodes that transmit at the same time will interfere with this node at this moment

However, in an event-triggered wireless sensor network, untriggered neighbor nodes are in a dormant state and do not participate in data transmission. It is not very accurate to define the interference a node suffers simply by the number of surrounding nodes. Therefore, it is necessary to redo Consider Interference Issues

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