Communication path determination method and device

Abstract

The embodiment of the invention discloses a communication path determination method and device. The communication path determination method is applied to a source node in a wireless mesh network (WMN), and the source node is connected with a communication terminal. After the source node receives a service request sent by the communication terminal, links of which the signal interference noise ratios are less than a link signal interference noise ratio threshold and links of which the interruption probabilities are less than an interruption probability threshold are removed from all links of the WMN to obtain selectable links, and a communication path is determined from the selectable links to perform data transmission. Through application of the technical scheme provided by the embodiment of the invention, pass of links with high interruption probabilities is avoided effectively; high spectral efficiency is ensured; end-to-end transmission rate is ensured; and the lifetime of the network is prolonged.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for determining a communication path. Background technique [0002] Wireless Mesh Network (WMN) is a new type of wireless network technology. In WMN, each node can send and receive signals, and each node can directly communicate with one or more peer nodes. In practical applications, WMN is often affected by multiple factors such as weather conditions, geographical location, and wireless channels. Especially in Energy Harvesting Wireless Mesh Network (Energy Harvesting Wireless Mesh Network, EH-WMN), because it uses renewable clean energy (such as solar energy, wind energy and tidal energy, etc.), it is more vulnerable to weather conditions, geographical location, wireless channel, etc. Influenced by factors, for example, in different time periods, the intensity of energy collected by solar panels is different. The solar energy collecte...

AI Technical Summary

Problems solved by technology

Especially in Energy Harvesting Wireless Mesh Network (Energy Harvesting Wireless Mesh Network, EH-WMN), because it uses renewable clean energy (such as solar energy, wind energy and tidal energy, etc.), it is more vulnerable to weather conditions, geographical location, wireless channel, etc. Influenced by factors, for example, in different time periods, the intensity of energy collected by solar panels is different, and the solar energy collected during the day may be more, but it is difficult to collect at night

Therefore, the nodes in WMN are prone to problems, such as shutting down. If a node is shut down, all links connected to the node will be interrupted.

Images