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Optimizing Method of Network Node Sending Mode in the Process of Network Convergence Discovery

A technology of network integration and optimization method, applied in the field of communication, can solve the problems of long average discovery time, low transmission mode efficiency, long network integration time, etc., to improve the transmission scanning mode, reduce the discovery time, optimize the transmission scanning mode Effect

Active Publication Date: 2019-11-26
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Applying the above solution, only when the nodes have overlapping idle time slots, and the sending beam of the sending node is aligned with the receiving node, can the two nodes complete the discovery, so the efficiency of the sending method is low, and the probability of the network node completing the discovery is The average discovery time is With the increase of the number of directions outside the network, the discovery probability of this transmission method is very low and the average discovery time is very long, resulting in a long time for network integration, and broadcast slot number conflicts are likely to occur before the discovery is not completed

Method used

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  • Optimizing Method of Network Node Sending Mode in the Process of Network Convergence Discovery
  • Optimizing Method of Network Node Sending Mode in the Process of Network Convergence Discovery
  • Optimizing Method of Network Node Sending Mode in the Process of Network Convergence Discovery

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Embodiment 1, an optimization method using a mini-slot as the minimum transmission unit.

[0049] refer to image 3 , the implementation steps of this example are as follows:

[0050] Step 1: The sending node divides the idle data slot into several mini-slots.

[0051] According to the known number of directions outside the network a, the number of idle data slots f, the position of idle data slots and the dwell time Δ of antenna beams, the sending node first divides each idle data slot into three parts, and then divides each part Divided into different numbers of mini-slots, that is, the first part is a mini-slots, and the second part is mini-slots, the third part is the last a mini-slots, get the number of each free data slot mini-slots;

[0052] Sending discovery packets is only done in the minislots of the first part and the minislots of the third part, while the There is no need to do any operation for each mini-slot, since the beam dwell time Δ is relative...

Embodiment 2

[0069] Embodiment 2, an optimization method using a time slot as the minimum sending unit.

[0070] refer to Figure 6 , the implementation steps of this example are as follows:

[0071] Step 1: The sending node generates the basic sending sequence of the first multiframe.

[0072] Assume that the sending node has a external direction of the network and f free data slots, where a≥1, f≥1, at the beginning of the discovery process, the sending node generates a set of random sequences {A 1 ,A 2 ,...,A m ,...,A a-1 ,A a} as the basic transmission sequence of the first multiframe, where A m is an out-of-network sending direction pointed to by the mth element, m=1,2,...,a.

[0073]Step 2: Send a discovery packet in the current multiframe.

[0074] Let Fn be the current multiframe number, 1≤Fn≤a, assuming that the positions of the idle data slots of a consecutive multiframes are unchanged, and the sending node of this a multiframes finds the sequence in each idle data slot: ...

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Abstract

The invention discloses a method for optimizing the transmission mode of the network node in the network node discovery process under the network fusion scene of the mobile Ad Hoc network. It mainly solves the problems of low transmission efficiency, low discovery probability and long discovery time in the prior art. The implementation scheme is as follows: the sending node divides the idle data time slot into several mini-slots; the sending node generates the basic direction sequence of the first multiframe; according to the basic direction sequence of the first multiframe, in the current idle data time slot Send a discovery packet in each mini-slot of the current multi-frame, and judge whether the operation of the current multi-frame is completed: if it is completed, continue the sending operation of the next free data slot of the current multi-frame; otherwise, judge whether the sending node has completed the operation of all multi-frames : If it is not completed, continue to send in the next multiframe; if it is completed, the sending work ends. The invention improves node transmission efficiency, increases node discovery probability, reduces node discovery time, and can be used for network fusion.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a method for optimizing the transmission mode of network nodes, which can be used in the node discovery stage of mobile Ad Hoc network integration, and can improve node transmission efficiency and increase The discovery probability of large network nodes reduces the discovery time of network nodes. Background technique [0002] Ad Hoc network is a special wireless network, which is different from WLAN and cellular wireless network. Ad Hoc network does not need network control center and base station, it is composed of many mobile nodes with wireless transceiver devices, it is a distributed network. The Ad Hoc network can quickly complete the establishment of a wireless network at any time and any place, and is widely used in emergency, disaster relief, and other fields, so it has received extensive research and attention. [0003] Due to the mobility of the Ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/00H04W84/18H04W72/04H04W72/08H04W72/54
CPCH04W8/005H04W84/18H04W72/046H04W72/0446H04W72/542
Inventor 史琰姬思敬盛敏何雨航陶伟伟钟明祥仲伟慧
Owner XIDIAN UNIV
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