Cognitive wireless network system and method for transmitting cognitive streams thereof

Abstract

The invention relates to a cognitive wireless network system with a cognitive radio function and a method for transmitting cognitive streams thereof. Base stations or wireless access points and terminals of the cognitive wireless network are all additionally provided with corresponding functional entities at a physical layer, a radio link layer and a high layer through a layering protocol stack, a centralized physical transmission channel and a distributed physical transmission channel are respectively established, based on a general control channel of the cognitive streams, data and parameters obtained by cognitive nodes through a physical channel are unifiedly represented as information which can be processed by the functional entities for intelligence reasoning and decision-making in the wireless system, and efficient, integral and reliable transmission scheme for cognitive information is realized by joint processing of the functional entities and the channels to lay a foundation for intelligent decision-making and dynamic reconfiguration inside the cognitive nodes in a network. In the invention, as a layering realization mechanism is adopted, the cognitive wireless network system can be flexibly adapted to changes of the network structure and the wireless environment; in addition, the cognitive wireless network system disclosed by the invention is highly compatible with the existing wireless protocol structure, thus having good popularization and application prospects.

Description

technical field [0001] The present invention relates to cognitive radio technology, specifically to a cognitive wireless network system and a method for transmitting cognitive flow thereof, and belongs to the technical field of network layer data transmission of wireless communication systems. Background technique [0002] In a cognitive wireless network, obtaining relevant information at different levels in the network is a basic requirement for its cognitive function, and it is also a prerequisite for implementing intelligent decision-making and network reconfiguration. Although the nodes in the cognitive wireless network have more advanced and intelligent information processing and network reconstruction capabilities, the basis for utilizing these new cognitive technologies is to obtain and transmit information. Steps to realize the effective delivery of cognitive information is a fundamental issue in cognitive radio networks. [0003] Cognitive information is the inform...

AI Technical Summary

Problems solved by technology

Although the current cognitive wireless network system has put forward relatively broad and abstract requirements on how to obtain cognitive information, so far, no specific cognitive information transmission and processing methods have been given for possible network scenarios, that is, support for cognitive information. The specific method of knowledge flow transmission has not been proposed so far

[0006] Therefore, the existing technology has the following disadvantages: the cognitive wireless network system currently proposed lacks specific and effective systematic solutions and implementation methods for the transmission and management of cognitive streams, and the existing methods for realizing cognitive information The transmission method and system of control flow or cognitive service flow are not suitable for the transmission of cognitive flow in cognitive wireless network system, and there is no reasonable solution for the possible network organization type (distributed or centralized). Transmission Control Mechanism for Cognitive Flow

Images