Multipoint cooperative working method for reliable communication in wireless Ad hoc network communication system

A wireless ad hoc network and communication system technology, applied in the field of wireless ad hoc network, can solve the problems of poor reliability of information transmission, and achieve the effects of ranging range, strong transmission reliability, and high success probability

Inactive Publication Date: 2009-12-09
HARBIN INST OF TECH
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  • Abstract
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Problems solved by technology

[0006] The present invention aims to solve the problem that there is only one route for transmitting information in the existing wireless communication process, which results in po

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  • Multipoint cooperative working method for reliable communication in wireless Ad hoc network communication system
  • Multipoint cooperative working method for reliable communication in wireless Ad hoc network communication system
  • Multipoint cooperative working method for reliable communication in wireless Ad hoc network communication system

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specific Embodiment approach 1

[0050] Specific implementation mode one: combine figure 1 Illustrate this embodiment, the multi-point cooperative work method that carries out reliable communication in the wireless ad hoc network communication system, it is finished by the following steps:

[0051] Step 1. Request the cooperative ranging node to judge whether it has data to be sent; if the judgment result is yes, then execute step 1; if the judgment result is no; then execute step 2;

[0052] Step 11. Send data and end this information update;

[0053] Step 2, requesting the coordinated ranging node to broadcast the coordinated ranging request;

[0054] Step 3. The target node judges whether it needs coordination; if the judgment result is no, then execute step 31; if the judgment result is yes, then execute step 4;

[0055] Step 31, requesting the cooperative ranging node to give up the coordination of the target node;

[0056] Step 4. The target node replies the cooperative ranging response to the reque...

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Abstract

A multipoint cooperative working method for reliable communication in a wireless Ad hoc network communication system relates to the wireless Ad hoc network technical field. The invention solves the problem that information transmission reliability is poor as only one route is used for information transmission in the existing wireless communication process. The method includes that: a node requesting cooperative distance measurement broadcasts a cooperative distance measurement request; a destination node writes in the address thereof and the address of a downriver node thereof if needing cooperation; after obtaining successful signal interaction with the destination node and the downriver node of the destination node, the node requesting cooperative distance measurement obtains the distance with the destination node and the distance with the downriver node of the destination node by detecting the cooperative distance measurement request message and acknowledgement signal of the destination node and those of the downriver node of the destination node; and if the two distance values meet the requirement of being less than the corresponding reliable transmission domain radius, the node requesting cooperative distance measurement sends an acknowledge message to the destination node. The invention is applicable to emergency response and communication recovery process after disaster.

Description

technical field [0001] The invention belongs to the technical field of wireless ad hoc networks, and in particular relates to a multi-point cooperative working method in a wireless ad hoc network communication system. Background technique [0002] Reliable, efficient communications are critical to public safety, especially emergency response and disaster recovery efforts. In recent years, events such as the "Katrina" hurricane, the low-temperature rain, snow and freezing disaster in southern my country, and the Wenchuan earthquake in Sichuan have shown that there are many problems in the current emergency communication. A major problem is the lack of ability for rescue teams and emergency services to work together during disasters in terms of communication equipment used by different public safety agencies and jurisdictions. The investigation report of the Wenchuan Earthquake in Sichuan pointed out that technical incompatibility and the use of non-cooperative methods in eme...

Claims

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Application Information

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IPC IPC(8): H04W40/02H04W84/18
CPCY02D30/70
Inventor 沙学军秦丹阳吴少川石硕马琳何晨光叶亮
Owner HARBIN INST OF TECH
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