Patent ID: 7450517
Filing Date: 2008-11-11
Classification: H04L,H04W,Y02D

Abstract:
1. A mobile ad-hoc network system comprising: a plurality of mobile terminals and a central control means configured to create a network map by registering identifiers and state information of the mobile terminals and setting transmission routes among the terminals based on the created network map, wherein the central control means comprises: a means for storing registration information including, for each of the mobile terminals, an identifier, state information and identifiers of neighbor terminals, and for creating the network map by using the registration information; a means for setting and updating the transmission routes among the terminals based on the created map; and a means for providing route information to a mobile terminal when the mobile terminal requests the route information for transmitting data to a destination; and wherein each terminal comprises: a means for storing information including identifiers of its neighbor terminals and distance information indicating a distance from the terminal to the central control means; a means for transmitting a broadcast message including an identifier of the terminal and the distance information stored therein; a means for receiving a response message including an identifier of the responding terminal and distance information indicating a distance from the responding terminal to the central control means; a means for updating the information on the neighbor terminals stored in the terminal and setting a smallest value of the values obtained by respectively adding the distance information of the neighbor terminals to the distance from the terminal to the neighbor terminals as the updated distance information of the terminal, when the received response message is different from the stored information; and a means for transmitting the updated information to the central control means to be registered, when the terminal enters a network area of the mobile ad-hoc network.