An MANET-access-Internet self-adaptive gateway discovery algorithm based on gateway information elements

Abstract

The invention relates to an MANET-access-Internet self-adaptive gateway discovery algorithm based on gateway information elements. The algorithm comprises the following steps: firstly, a link stability assessment method is employed, and is used for selecting whether a stabilization link and a prediction link are disconnected; secondly, whether nodes have qualifications for forwarding GWADV information is marked through the gateway information elements; the GWADV information is forwarded to a source node through an active area composed of the nodes which have the qualifications for forwarding the GWADV information and the source node; thirdly, the forwarding qualifications of the nodes are adjusted periodically and the active area is adjusted to make the active area automatically adapt to MANET topological changes, so that the GWADV information is forwarded to the source node. According to the invention, the nodes which participate in the forwarding are small in number; an established route is stable; the control cost is low, the integral performance of the network is high; the adaptive ability is strong; and extra hardware demands and energy consumption will not be added.

Description

technical field [0001] The invention belongs to the field of mobile ad hoc networks (MANET: Mobile Ad Hoc Networks), and specifically relates to a gateway pheromone-based adaptive gateway discovery algorithm for MANET access to the Internet. Background technique [0002] Mobile Ad Hoc Networks (MANET: Mobile Ad Hoc Networks) is a network composed of a group of mobile nodes with routing and forwarding functions, which can communicate in an environment without any communication infrastructure support. Communication between two nodes can be realized through multi-hop, and the intermediate node is not only a terminal node, but also has the function of routing and forwarding. [0003] The access of mobile ad hoc network to the Internet can expand the application of ad hoc network, and it is also a goal of the next generation 4G network to seamlessly connect all existing networks. Because the address structure in MANET is not compatible with the IP address structure, the two cann...

AI Technical Summary

Problems solved by technology

[0006] 2. Although the hybrid gateway discovery algorithm can reduce the control overhead to a certain extent, once the TTL parameter is determined, all nodes in the active area will still periodically generate a large number of control packets

[0007] 3. Due to the mobility of nodes in MANET, the network topology is unstable

The current gateway discovery algorithm does not take into account the selection of stable routes when establishing routes to gateways

Images