Method of automatically assigning ip address based on geographic location in mobile ad hoc network

Abstract

The invention discloses an automatic IP (Internet protocol) address allocation method based on geographical position in mobile ad hoc network, wherein the network is divided into grid structures of multiple layers, and a temporary IP address field is pre-defined for each grid. The allocation method comprises the following steps: when a node joins the network, randomly selecting a temporary IP address from the temporary IP address field of the grid in which the node is located, and performing DAD repeated address detection to avoid conflict with the selected temporary IP address for sure; after the temporary IP address of the node is successfully configured, sending an IP inquiry message, avoiding IP address conflict, and configuring a formal IP address; after successful configuration, if the formal IP address is different from the temporary IP address, releasing the temporary IP address; and finishing the selection of a proxy node through an HELLO beacon and REG registration information by the node. The method provided by the invention has small system overhead and good expansibility, and can realize recovery of IP address and avoid address leakage.

Description

technical field [0001] The invention relates to a mobile self-organizing network technology, in particular to an IP address allocation method in a mobile network environment. Background technique [0002] The mobile ad hoc network is a temporary autonomous system composed of a series of mobile nodes with wireless transceivers. It does not depend on the preset infrastructure, and the nodes are randomly distributed in the network. The mobile node has the function of a router, can form any network topology through wireless connection, and the topology changes quickly. Mobile ad hoc network is a mobile, multi-hop, centerless, self-organizing network, which can be applied to the coordinated communication of troops on the battlefield, post-disaster rescue after earthquakes or sudden accidents, communication networks between vehicles, field scientific investigations, temporary meetings and other occasions. As a new networking method, the mobile ad hoc network must first solve the...

AI Technical Summary

Problems solved by technology

But for large-scale networks, especially open and practical networks that allow nodes to join and leave freely, it is unrealistic to configure addresses in advance

At the same time, in the mobile environment, the fast moving speed of nodes, large dynamic changes of network topology, short link maintenance time, network segmentation and fusion during operation will lead to address leakage and repetition problems, while traditional network addresses Dynamic configuration protocol cannot be directly applied to mobile ad hoc network

Therefore, dynamic address allocation is a major challenge for the practical and commercialization of mobile ad hoc networks

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