Dynamic distributed cooperation on demand accessing method and system

An access method, distributed technology, applied in the direction of using the return channel for error prevention/detection, electrical components, wireless communication, etc.

Active Publication Date: 2013-09-11
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The present invention aims to solve the problems described above

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  • Dynamic distributed cooperation on demand accessing method and system
  • Dynamic distributed cooperation on demand accessing method and system
  • Dynamic distributed cooperation on demand accessing method and system

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Embodiment Construction

[0053] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0054] It should be noted that the specific groups mentioned in the present invention are all exemplary, and in fact the present invention should not be limited by such groups, but focus on the technical idea of ​​the present invention.

[0055] The basic idea of ​​the present invention is that in the competition of coordinating nodes, each coordinating node performs data t...

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Abstract

The invention provides a dynamic distributed cooperation on demand accessing method and system. The dynamic distributed cooperation on demand accessing method includes that each cooperation node competes according to the data transmission rate of the cooperation node and a transmitting party node and a receiving party node, whether having self data grouping transmitting and the times of grouping of already transmitted data of the cooperation node so that the successfully competing cooperation nodes are selected, wherein when one cooperation node has self data grouping transmitting, the winning cooperation node is selected according to the principles of first transmitting busy tones, having the longest busy tone transmitting time and not hearing other busy tones in a tiny slot time after busy tone transmitting. The dynamic distributed cooperation on demand accessing method and system reduce competition conflicts and expanses of the cooperation nodes and improve the data grouping transmission rate and the cooperation accessing control efficiency.

Description

technical field [0001] The invention relates to media access control technology, in particular to a dynamic distributed on-demand cooperative access method and system. Background technique [0002] Ad Hoc network is a multi-point and multi-hop network sharing wireless transmission medium, which is dynamic, so the channel access control protocol faces problems such as hidden terminals, exposed terminals, and the impact of node movement. The Media Access Control (MAC) method solves the problem of how multiple nodes or users share channel resources quickly, efficiently, fairly and reliably. The quality of the MAC method directly affects the quality of network throughput, delay and other performance indicators. In wireless communication, factors such as channel fading and channel quality deterioration will lead to lower communication quality and narrower communication range. Traditional wireless communication generally uses diversity technology to reduce the impact of multipath...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/08H04L1/16
Inventor 刘凯常小影刘锋
Owner BEIHANG UNIV
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