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Node positioning and topology updating method in group mobile communication system

A mobile communication system, node positioning technology, applied in wireless communication, location-based services, sustainable communication technology, etc., can solve the problems of high patent fees, marketization restrictions, etc.

Inactive Publication Date: 2012-08-15
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the WiMax technology patent is obtained by the United States, the use of WiMax patented wireless radio frequency modules and terminals will pay high patent fees, which has very large restrictions on marketization

Method used

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  • Node positioning and topology updating method in group mobile communication system
  • Node positioning and topology updating method in group mobile communication system
  • Node positioning and topology updating method in group mobile communication system

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Experimental program
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Embodiment Construction

[0051] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0052] The applicable scenarios of the present invention include a group mobile communication system composed of 2 to 26 node machines. A single node machine covers a distance of 100 meters (a node machine with enhanced transmission power can reach 3Km, but the energy consumption drops rapidly). Within a circle of meters, the number of node machines is within 2~26, and there is no need to rely on satellite GPS positioning with a large delay (the minimum delay of satellite communication is 270ms) for distance measurement and direction positioning between members of the group mobile communication system. If the number of group members increases to between 50 and 100, the location update delay will reach about 1s, and the positioning accuracy will also decrease relatively. The working principle of node machine positioning and ranging is to obtain the ...

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Abstract

The invention discloses a node positioning and topology updating method in a group mobile communication system. The node positioning and topology updating method comprises the steps of intra-group credible node registration, adjacent visual range node orientation computation and maximum energy priority topology creation, wherein the step of intra-group trusted node registration is used for guaranteeing the credibility of intra-group wireless communication, unregistered node computers are deemed to be illegal nodes and intra-group warning information is sent out; the step of adjacent visual range node orientation computation is used for computing inter-node distance data and orientation information through phase difference and covering radius; and the step of maximum energy priority topology creation is used for creating an maintaining a topological path by using a maximum energy priority method and finally all nodes obtain all maximum estimated position information of the group mobile communication system through routing negotiation. The node positioning and topology updating method in the group mobile communication system takes an important effect on node topology link setup, position updating and cooperative communication in team military searching movement, team advancing and retreating movement management, tunnel movement groups.

Description

technical field [0001] The invention relates to a node positioning and topology data updating method in a group mobile communication system, and belongs to the technical field of mobile communication. Background technique [0002] At present, the positioning technology of mobile nodes in mobile communication is mainly based on GPS technology to position the position of a single GPS terminal. Due to the long delay of GPS positioning and mainly relying on high-altitude satellites, it is difficult for bridges, tunnels, and concealed advancement Most of the wireless sensor nodes in the wireless sensor network (WSN) are in a static position, and the topological information of the wireless sensor nodes in the network is estimated by the intersection of the maximum radius estimated by energy, so the mobility and accuracy above, are very lacking. [0003] In the application of the group mobile communication system, a group is often required to complete the group movement and commun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/02H04W12/00H04W40/02H04W64/00H04W12/06
CPCY02D30/70
Inventor 林晓勇糜正琨徐名海王斌蒋玲慧
Owner NANJING UNIV OF POSTS & TELECOMM
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