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Communication method and system for autonomous link establishment and frequency conversion integrated communication without common control channel

A technology of a common control channel and a communication method, which is applied in the field of an integrated communication system of independent chain building and frequency conversion without a common control channel, can solve the problems of increasing system complexity, high system packet loss rate, and high signal processing speed requirements, Achieve the effect of improving reliability and improving anti-interference ability

Active Publication Date: 2021-07-30
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although cognitive frequency hopping technology can effectively improve the anti-interference ability of conventional frequency hopping systems, it also increases the complexity of the system, and cognitive frequency hopping technology only updates the frequency point when it is interfered, which will lead to packet loss in the system The rate is high, and the system has high requirements for signal processing speed

Method used

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  • Communication method and system for autonomous link establishment and frequency conversion integrated communication without common control channel
  • Communication method and system for autonomous link establishment and frequency conversion integrated communication without common control channel
  • Communication method and system for autonomous link establishment and frequency conversion integrated communication without common control channel

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Embodiment 1

[0036] refer to image 3 , in the example of the present invention, a wireless communication system composed of multiple transmitting nodes, receiving nodes and potential interfering nodes is built through the software radio equipment USRP-2920 and LabVIEW software. This system is completely distributed, that is, the system consists of a series of Composed of freely movable communication nodes, the nodes are dynamically and randomly distributed, there is no control center in the system, all nodes are equal, and no other preset network facilities are required, and independent link building and independent frequency conversion communication can be carried out at any time and any place. The system is composed of: four communication nodes (USRP-A, USRP-B, USRP-C, USRP-D, each node has the ability to transmit and receive, and can be used as a transmitting node or a receiving node), two interference nodes (USRP-E, USRP-F); Among them, the transmitting node is the communication calli...

Embodiment 2

[0067] Based on the same inventive concept as in Embodiment 1, an integrated communication system for autonomous link building and frequency conversion without a common control channel of the present invention includes a communication caller and a communication responder that are dynamically and arbitrarily distributed among each other;

[0068] The calling party and the answering party communicate using the above-mentioned communication method.

[0069] Compared with the prior art, the beneficial effects of the present invention are: each communication node in the communication system is completely distributed, the system is composed of a series of freely movable communication nodes, and the nodes are dynamically and arbitrarily distributed; the establishment of the communication link is It is completely autonomous and does not require a public control channel (the updated feature parameter set is placed in the sent data packet and sent directly); the real-time interference de...

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Abstract

The invention discloses a communication method and system for autonomous chain establishment and frequency conversion integration without a common control channel, which belongs to the technical field of wireless communication. The method steps are: the caller communication node independently establishes two-way communication with the responder communication node through a call response mechanism link; the caller communication node monitors the working frequency through the real-time interference detection mechanism, and updates the transmission signal characteristic parameters of the caller communication node independently every certain frequency conversion time slot, so that the responder communication node receives the updated transmission signal After the characteristic parameters, the characteristic parameters of the transmitted signal in the responding communication node are updated. The communication method and system of the invention can reduce the packet loss rate of the wireless communication system, and improve the anti-interference ability and reliability of the wireless communication system.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and mainly relates to a distributed autonomous link building technology and an autonomous frequency conversion interference countermeasure technology, in particular to an integrated communication method of independent link building and frequency conversion without a public control channel, and also relates to a communication method without a public control channel Independent chain building and frequency conversion integrated communication system. Background technique [0002] Frequency hopping communication has good anti-interference ability and anti-interception ability, but in the face of increasingly complex electromagnetic environment, the conventional frequency hopping system still has many shortcomings. Intercepted by enemy reconnaissance planes, the synchronization requirements are also extremely high, and the frequency hopping pattern is negotiated and fixed at the sending...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/7097
CPCH04B1/7097H04B1/715H04W28/0205
Inventor 邹玉龙潘跟朱佳王家俊
Owner NANJING UNIV OF POSTS & TELECOMM
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