Method for determining optimal route based on transmission time length

Abstract

The invention discloses a method for determining an optimal route based on transmission time length. The method comprises the following steps: establishing a communication channel route by using an AODV routing protocol via a source node; simultaneously establishing a reverse route in a process of enabling route to request message packet broadcast to pass from an intermediate node to a destination node, wherein the reverse route comprises information such as transmission time length from the source node to the destination node; determining an optimal route capable of passing from the intermediate node to the destination node through minimum hop count according to the shortest transmission time length from the source node to the destination node if the source node receives a plurality of reverse route messages reaching the destination node. Through the method for determining the optimal route based on transmission time length, the conventional method for selecting a route according to minimum hop count based on AODV protocol is optimized; the method is capable of ensuring that the source node can determine the optimality of the route when receiving a plurality of same reverse route messages with minimum hop count, and achieving optimal route control overhead, link stability and power control.

Description

Technical field [0001] The invention relates to the technical field of wireless communication ad hoc local area networks, in particular to a method for determining an optimal route based on the length of transmission time. Background technique [0002] Visible light communication wireless Ad hoc network is a kind of self-organized temporary local area network that does not rely on preset infrastructure and has a certain dynamic topology change. The network nodes have the dual functions of sending and receiving and routing, and adopts a distributed control method. For information interaction, multi-hop long-distance communication is realized with the help of intermediate node relays. The network has strong adaptability, simple architecture, low power consumption, uninterrupted, easy to carry, and is suitable for small team communication in the fields of security, disaster relief, fire fighting, and military. [0003] Ad hoc network technology research focuses on the optimization of ...

AI Technical Summary

Problems solved by technology

[0004] The routing implementation of the traditional AODV routing protocol is that when the source node receives multiple reverse routing information to the destination node, the source node determines the route according to the selection principle that the hops from the source node to the destination node through the intermediate node are the least. When there are multiple reverse routing information with the same minimum number of hops, this method cannot guarantee the optimality of the route, resulting in suboptimal routing overhead, link stability, and power control.

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