Routing protocol path selection implementation method based on link propagation time

Abstract

The invention provides a method for realizing routing protocol path selection based on link propagation time, and the method comprises the steps that S1, when a source node has a data sending request to a destination node, if a routing path from the source node to the destination node cannot be queried, the source node broadcasts and sends a path request message to perform path detection; S2, after receiving the path request message sent by the source node, the routing node judges whether the path request message meets a message forwarding condition or not: if not, the received path request message is discarded, if yes, the path request message is forwarded, and the node between the source node and the destination node is the routing node. The invention has the beneficial effects that the routing path is selected by combining a link propagation time evaluation mechanism in the multi-rate network, the optimal path can be conveniently and quickly selected in the multi-rate network, and meanwhile, the stability of system communication can be improved, the network capacity can be maximized, and the link occupation time can be minimized.

Description

technical field [0001] The invention belongs to the field of multi-rate Ad-Hoc network routing protocols, in particular to a method for realizing routing protocol path selection based on link propagation time. Background technique [0002] Ad-hoc network is a multi-hop, centerless, self-organizing wireless network, also known as Multi-hop Network, Infrastructureless Network or Self-organizing Network. The entire network has no fixed infrastructure, each node is mobile, and can dynamically maintain contact with other nodes in any way; [0003] The use of multi-rate solutions in mobile communications has two meanings. One is to provide different data rates for services with different quality of service requirements, and the other is to use different rates under different interference and noise conditions to meet the requirements of the bit error rate. Requirements, improve the stability of the communication system, the method of this paper is aimed at the second case, a routi...

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Problems solved by technology

[0006] In view of this, the present invention aims to propose a method for implementing routing protocol path selection based on link propagation time, which can overcome the problem that the routing protocol based on the minimum number of hops method is applied to multi-rate networks, and better It solves the problem of multi-rate network path selection, making traditional routing protocols based on link propagation time path selection more suitable for multi-rate networks

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