cognitive radio

Spectrum sensing is one of the key technologies in cognitive radio and energy detection is a typical method of it.

Although the sensing capability on cognitive radio was improved by the increase of sensing time, the transmitted time was limited in a way.

Cognitive Radio (CR) is an effective solution to the problem of low spectrum utilization, and a milestone in wireless communications.

A spectrum assignment scheme for cognitive radio networks is proposed by means of combining graph theory with immune optimization algorithm.

Therefore, the research on adaptive transmission strategies in cognitive radio network will be very valuable and meaningful.

Cognitive radio (CR) is considered to be the best solution to solve the low utilization problem of the wireless spectrum.

This dissertation mainly studies the compressive sensing technology and its application in spectrum sensing for wideband cognitive radio.

Thus, as an intelligent spectrum sharing technology, cognitive radio technology received extensive attention in recent years.

cognitive radio; multi-dimension cooperative communications; cognitive wireless network; joint radio resource management.

Cognitive Radio(CR) is an intelligent wireless communication system, whose intelligence mostly comes from the cognitive engine.

One of the key issues in cognitive radio is the effective detection and access to the spectrum holes.

Cognitive Radio (CR) is an intelligent wireless communication system, whose intelligence is mostly from Cognitive Engine(CE).

The main contents of this thesis is spectrum allocation of dynamic spectrum management in the cognitive radio system.

The use of spectrum in authorized spectrum band is one of the key technologies of realizing cognitive radio.

In this paper we briefly introduce the background, concepts of cognitive radio and its research status at home and abroad.

In the last part of the paper, the whole cognitive radio receiver system design and the process procedure are introduced.

Cognitive Radio (CR) is an intelligent radio technology which has the capability to search and utilize underutilized spectrum resources.

The potential for cognitive radio technology to redefine existing wireless services becomes clear when one considers their economics.

Cooperative communication and cognitive radio are the key candidates for the future mobile communication technologies.

Such costs could drop dramatically, and service quality could improve greatly, when cognitive radio is finally unleashed in the marketplace.

Spectrum sensing technology is the key integrant in Cognitive Radio, is the basis and precondition for implementation of Cognitive Radio.

Cognitive Radio is proposed to release the conflicts between low utilization of spectrum and increasing demands of spectrum resource.

Cognitive radio(CR) can increase the utilization rate of the spectrum by dynamically using the spectrum hole of primary users.

This paper mainly aimed at two related cognitive radio research direction: multi-channel MAC protocol and simulation platform.

The thesis mainly researches cooperative spectrum sensing and decision fusion algorithm in cognitive radio.

Cognitive radio(CR) technique is a great breakthrough in sharing wireless resources.

The embodiment of the invention also discloses a cognitive radio system, the BS and the customer premises equipment CPE.

It realizes same radio spectrum using by multi-users. So spectrum detection is the key technique for realization of cognitive radio.

In cognitive radio network, multi-channel MAC protocol can solve the problem of the multiple users to share multiple spectrum bands.

Also, an intelligent resource management scheme is required for the cognitive radio networks.

In the third chapter, we studied cognitive radio network architecture and put forward a new network model with a spectrum sensing layer.

Cognitive radio is interested because this technique can increase spectrum efficiency.

and finally describes the status of cognitive radio development and broad application scenarios.

the spectrum utilization is improved greatly by adopting cognitive radio technology.

As a smart spectrum sharing technology, cognitive radio is becoming a hot topic in the field of wireless telecommunications.

A demand-based spectrum allocation algorithm between cognitive radio cells was proposed.

And then, current research models of cognitive radio and dynamic spectrum allocation are fully studied.

Initially, fundamentals of OFDM and technologies of cognitive radio are introduced in this paper.

In cognitive radio networks, spectrum sensing as a core issue has been widely studied.

Then we describe the cognitive radio resource management and allocation models.

A novel adaptive ultrawideband(UWB) narrowband interference suppression method is presented based on cognitive radio(CR) theory.

A Fast control channel selection algorithm for cognitive radio is proposed in this paper.

Spectrum sensing technology has become the basis and premise of Cognitive Radio technology.

In addition, an application scenario of OFDM-based TDCS, signalling exchange in the cognitive radio context, is proposed in this paper.

Cognitive radio is arriving on the heels of SDR technology and building on it.

Study results: 1. we proposed a cognitive radio frequency spectrum detection layer network model to solve the hidden terminal problem. 2.

This decision released more than 100 MHz for cognitive radio in typical urban markets.

Based on avoiding interference to primary users, dynamic spectrum access plays a key role in cognitive radio.

The growth of cognitive radio will take some time to occur, but the effect on all our lives will be significant.

New radio techniques such as cognitive radio and SDR will be applied to new services in this UHF band.

Cognitive radio technology will know what to do based on prior experience.

the definition of cognitive radio reveals the two features of cognitive radio, cognitive ability and reconfigurability;

Spatial Spectrum Holes for Cognitive Radio with Relay-Assisted Directional Transmission | Cognitive radio;

Applications of Cognitive Radio in Broadband Wireless Communications System

International Conference on Cognitive Radio Oriented Wireless Networks and Communications CrownCom

Application of Cognitive Radio for Future Mobile Multimedia Communications

Policy Influence and Market Prospect Forecast for Cognitive Radio Technology

Multiuser OFDM resource allocation algorithm for cognitive radio

Spectrum Holes Detection Technologies in Cognitive Radio

Investigation on Key Techniques and Applications of Cognitive Radio

Architectures and Protocols of Cognitive Radio Networks

OFDM Technologies and Applications in Cognitive Radio

Standardization Status of Cognitive Radio

Research and Progress in Cognitive Radio Technology

Research on Cognitive Radio Technology

The Investigation on the Application of UWB to Cognitive Radio

Software-defined Radio and Cognitive Radio

Summary of the Research on Cognitive Radio

Combination of Cognitive Radio and WLAN

Dynamic Spectrum Access MAC Scheme Based on Cognitive Radio