Method for accessing and exiting frequency spectrum of hybrid cognitive network

A cognitive network and spectrum access technology, applied in the field of cognitive wireless network access and exit, can solve problems such as increased cognitive user competition and communication connection failure, achieving both cognitive work efficiency and complexity, and overall reliability sex enhancing effect

Inactive Publication Date: 2011-09-28
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patented technology lies within its separation between accessing function (access) and leaving it for use outside the brain's own memory space called consciousness). This improves how we process data more efficiently without overwhelming our mental energy levels. Additionally, there may still exist some parts where they don’t actively participate but only interact through special senses like touch sense on their skin surface. By separating these two processes from other things, the device becomes better able to handle complex tasks faster than traditional systems due to increased processing power available throughout itself.

Problems solved by technology

This patented describes how different techniques may be used when accessing an internet service like CRAN (Cograded Real Access Net) without compromising its security level. These include distribution detection and resource selection strategies, spectral analysis, physical layer signal modulation, and optimization algorithms. Additionally, it mentions that existing approaches involve optimizing certain parameters before sending signals over the Internet, but these settings were fixed during initial stages of deployment.

Method used

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  • Method for accessing and exiting frequency spectrum of hybrid cognitive network
  • Method for accessing and exiting frequency spectrum of hybrid cognitive network
  • Method for accessing and exiting frequency spectrum of hybrid cognitive network

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Embodiment Construction

[0020] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples.

[0021] The technical solution of this embodiment is to provide a method for spectrum access and exit of a cognitive network applicable to conventional wireless communication technologies. The hybrid access and exit method provided in this embodiment is directly used in the design of a small cognitive wireless network whose operating frequency band is the 433MHz license-free frequency band. The nRF905 radio frequency transmission module that can work at 433 / 868 / 915 MHz is selected as the cognitive wireless network. For the user communication module, the cc1100 radio frequency transmitter module with the same working frequency band is selected as the authorized user communication module. In order to realize the control requirements of the normal operation of the network, this embodiment selects the MSP430F2418 single-chip microcompu

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Abstract

The invention discloses a method for accessing and exiting frequency spectrum of a hybrid cognitive network by adopting the conventional wireless communication technology. Wireless communication adopts a multi-band mode and comprises an authorization network and a cognitive network; a special node is included in a cognitive user; centralized frequency spectrum perception and channel allocation and management are performed by using a public control channel and the special node when the cognitive user is accessed; and the method for exiting of the cognitive user adopts a distributed mode after a channel is re-occupied by the authorization network. By adopting centralized access allocation, distributed perception exiting, and a point-to-point communication method, and the functions of accessing and exiting are separated to ensure the cognitive working efficiency and the complexity of a cognitive network system. Moreover, each node shares same hardware resources, so the special node can be arbitrarily selected or replaced, and the comprehensive reliability of the system can be also improved.

Description

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Claims

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Application Information

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Owner SUZHOU UNIV
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