Method and device for determining a communication path

Abstract

The embodiment of the invention discloses a method and device for determining a communication path. A method for determining a communication path, applied to a source node in a wireless mesh network WMN, the source node is connected to a communication terminal, and after receiving a service request sent by the communication terminal, the source node passes through all links of the WMN , the links whose SINR is less than the link SINR threshold and the links whose outage probability is less than the outage probability threshold are removed to obtain optional links, and the communication path is determined from the optional links for data transmission. Applying the technical solutions provided by the embodiments of the present invention effectively avoids passing through links with a high probability of interruption, and ensures relatively high spectral efficiency, that is, guarantees an end-to-end transmission rate, and prolongs the lifetime of the network.

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 the 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, etc. , wireless channel and other factors, for example, in different time periods, the intensity of energy collected by solar panels is different, the solar energy coll...

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, etc. , wireless channel and other factors, for example, in different time periods, the energy intensity collected by solar panels is different, 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.

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